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1372 lines
40 KiB
1372 lines
40 KiB
use super::Array; |
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use crate::builtins::Number; |
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use crate::{forward, Context, Value}; |
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|
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#[test] |
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fn is_array() { |
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let mut context = Context::new(); |
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let init = r#" |
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var empty = []; |
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var new_arr = new Array(); |
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var many = ["a", "b", "c"]; |
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"#; |
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context.eval(init).unwrap(); |
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assert_eq!( |
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context.eval("Array.isArray(empty)").unwrap(), |
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Value::Boolean(true) |
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); |
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assert_eq!( |
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context.eval("Array.isArray(new_arr)").unwrap(), |
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Value::Boolean(true) |
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); |
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assert_eq!( |
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context.eval("Array.isArray(many)").unwrap(), |
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Value::Boolean(true) |
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); |
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assert_eq!( |
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context.eval("Array.isArray([1, 2, 3])").unwrap(), |
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Value::Boolean(true) |
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); |
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assert_eq!( |
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context.eval("Array.isArray([])").unwrap(), |
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Value::Boolean(true) |
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); |
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assert_eq!( |
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context.eval("Array.isArray({})").unwrap(), |
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Value::Boolean(false) |
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); |
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// assert_eq!(context.eval("Array.isArray(new Array)"), "true"); |
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assert_eq!( |
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context.eval("Array.isArray()").unwrap(), |
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Value::Boolean(false) |
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); |
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assert_eq!( |
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context |
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.eval("Array.isArray({ constructor: Array })") |
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.unwrap(), |
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Value::Boolean(false) |
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); |
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assert_eq!( |
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context |
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.eval("Array.isArray({ push: Array.prototype.push, concat: Array.prototype.concat })") |
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.unwrap(), |
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Value::Boolean(false) |
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); |
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assert_eq!( |
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context.eval("Array.isArray(17)").unwrap(), |
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Value::Boolean(false) |
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); |
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assert_eq!( |
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context |
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.eval("Array.isArray({ __proto__: Array.prototype })") |
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.unwrap(), |
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Value::Boolean(false) |
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); |
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assert_eq!( |
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context.eval("Array.isArray({ length: 0 })").unwrap(), |
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Value::Boolean(false) |
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); |
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} |
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|
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#[test] |
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#[ignore] |
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fn concat() { |
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//TODO: array display formatter |
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let mut context = Context::new(); |
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let init = r#" |
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var empty = new Array(); |
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var one = new Array(1); |
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"#; |
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context.eval(init).unwrap(); |
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// Empty ++ Empty |
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let ee = context |
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.eval("empty.concat(empty)") |
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.unwrap() |
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.to_string(&mut context) |
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.unwrap(); |
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assert_eq!(ee, "[]"); |
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// Empty ++ NonEmpty |
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let en = context |
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.eval("empty.concat(one)") |
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.unwrap() |
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.to_string(&mut context) |
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.unwrap(); |
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assert_eq!(en, "[a]"); |
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// NonEmpty ++ Empty |
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let ne = context |
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.eval("one.concat(empty)") |
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.unwrap() |
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.to_string(&mut context) |
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.unwrap(); |
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assert_eq!(ne, "a.b.c"); |
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// NonEmpty ++ NonEmpty |
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let nn = context |
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.eval("one.concat(one)") |
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.unwrap() |
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.to_string(&mut context) |
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.unwrap(); |
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assert_eq!(nn, "a.b.c"); |
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} |
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|
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#[test] |
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fn join() { |
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let mut context = Context::new(); |
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let init = r#" |
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var empty = [ ]; |
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var one = ["a"]; |
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var many = ["a", "b", "c"]; |
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"#; |
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eprintln!("{}", forward(&mut context, init)); |
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// Empty |
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let empty = forward(&mut context, "empty.join('.')"); |
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assert_eq!(empty, String::from("\"\"")); |
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// One |
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let one = forward(&mut context, "one.join('.')"); |
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assert_eq!(one, String::from("\"a\"")); |
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// Many |
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let many = forward(&mut context, "many.join('.')"); |
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assert_eq!(many, String::from("\"a.b.c\"")); |
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} |
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|
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#[test] |
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fn to_string() { |
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let mut context = Context::new(); |
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let init = r#" |
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var empty = [ ]; |
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var one = ["a"]; |
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var many = ["a", "b", "c"]; |
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"#; |
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eprintln!("{}", forward(&mut context, init)); |
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// Empty |
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let empty = forward(&mut context, "empty.toString()"); |
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assert_eq!(empty, String::from("\"\"")); |
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// One |
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let one = forward(&mut context, "one.toString()"); |
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assert_eq!(one, String::from("\"a\"")); |
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// Many |
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let many = forward(&mut context, "many.toString()"); |
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assert_eq!(many, String::from("\"a,b,c\"")); |
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} |
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|
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#[test] |
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fn every() { |
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let mut context = Context::new(); |
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// taken from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/every |
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let init = r#" |
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var empty = []; |
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|
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var array = [11, 23, 45]; |
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function callback(element) { |
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return element > 10; |
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} |
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function callback2(element) { |
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return element < 10; |
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} |
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|
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var appendArray = [1,2,3,4]; |
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function appendingCallback(elem,index,arr) { |
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arr.push('new'); |
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return elem !== "new"; |
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} |
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|
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var delArray = [1,2,3,4]; |
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function deletingCallback(elem,index,arr) { |
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arr.pop() |
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return elem < 3; |
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} |
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"#; |
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eprintln!("{}", forward(&mut context, init)); |
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let result = forward(&mut context, "array.every(callback);"); |
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assert_eq!(result, "true"); |
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|
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let result = forward(&mut context, "empty.every(callback);"); |
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assert_eq!(result, "true"); |
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|
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let result = forward(&mut context, "array.every(callback2);"); |
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assert_eq!(result, "false"); |
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|
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let result = forward(&mut context, "appendArray.every(appendingCallback);"); |
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assert_eq!(result, "true"); |
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|
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let result = forward(&mut context, "delArray.every(deletingCallback);"); |
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assert_eq!(result, "true"); |
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} |
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|
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#[test] |
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fn find() { |
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let mut context = Context::new(); |
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let init = r#" |
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function comp(a) { |
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return a == "a"; |
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} |
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var many = ["a", "b", "c"]; |
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"#; |
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eprintln!("{}", forward(&mut context, init)); |
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let found = forward(&mut context, "many.find(comp)"); |
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assert_eq!(found, String::from("\"a\"")); |
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} |
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|
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#[test] |
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fn find_index() { |
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let mut context = Context::new(); |
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|
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let code = r#" |
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function comp(item) { |
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return item == 2; |
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} |
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var many = [1, 2, 3]; |
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var empty = []; |
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var missing = [4, 5, 6]; |
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"#; |
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|
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forward(&mut context, code); |
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|
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let many = forward(&mut context, "many.findIndex(comp)"); |
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assert_eq!(many, String::from("1")); |
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|
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let empty = forward(&mut context, "empty.findIndex(comp)"); |
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assert_eq!(empty, String::from("-1")); |
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|
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let missing = forward(&mut context, "missing.findIndex(comp)"); |
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assert_eq!(missing, String::from("-1")); |
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} |
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|
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#[test] |
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fn push() { |
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let mut context = Context::new(); |
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let init = r#" |
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var arr = [1, 2]; |
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"#; |
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eprintln!("{}", forward(&mut context, init)); |
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|
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assert_eq!(forward(&mut context, "arr.push()"), "2"); |
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assert_eq!(forward(&mut context, "arr.push(3, 4)"), "4"); |
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assert_eq!(forward(&mut context, "arr[2]"), "3"); |
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assert_eq!(forward(&mut context, "arr[3]"), "4"); |
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} |
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|
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#[test] |
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fn pop() { |
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let mut context = Context::new(); |
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let init = r#" |
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var empty = [ ]; |
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var one = [1]; |
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var many = [1, 2, 3, 4]; |
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"#; |
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eprintln!("{}", forward(&mut context, init)); |
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|
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assert_eq!( |
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forward(&mut context, "empty.pop()"), |
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String::from("undefined") |
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); |
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assert_eq!(forward(&mut context, "one.pop()"), "1"); |
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assert_eq!(forward(&mut context, "one.length"), "0"); |
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assert_eq!(forward(&mut context, "many.pop()"), "4"); |
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assert_eq!(forward(&mut context, "many[0]"), "1"); |
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assert_eq!(forward(&mut context, "many.length"), "3"); |
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} |
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|
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#[test] |
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fn shift() { |
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let mut context = Context::new(); |
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let init = r#" |
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var empty = [ ]; |
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var one = [1]; |
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var many = [1, 2, 3, 4]; |
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"#; |
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eprintln!("{}", forward(&mut context, init)); |
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|
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assert_eq!( |
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forward(&mut context, "empty.shift()"), |
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String::from("undefined") |
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); |
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assert_eq!(forward(&mut context, "one.shift()"), "1"); |
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assert_eq!(forward(&mut context, "one.length"), "0"); |
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assert_eq!(forward(&mut context, "many.shift()"), "1"); |
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assert_eq!(forward(&mut context, "many[0]"), "2"); |
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assert_eq!(forward(&mut context, "many.length"), "3"); |
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} |
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|
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#[test] |
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fn unshift() { |
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let mut context = Context::new(); |
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let init = r#" |
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var arr = [3, 4]; |
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"#; |
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eprintln!("{}", forward(&mut context, init)); |
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|
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assert_eq!(forward(&mut context, "arr.unshift()"), "2"); |
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assert_eq!(forward(&mut context, "arr.unshift(1, 2)"), "4"); |
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assert_eq!(forward(&mut context, "arr[0]"), "1"); |
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assert_eq!(forward(&mut context, "arr[1]"), "2"); |
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} |
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|
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#[test] |
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fn reverse() { |
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let mut context = Context::new(); |
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let init = r#" |
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var arr = [1, 2]; |
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var reversed = arr.reverse(); |
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"#; |
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eprintln!("{}", forward(&mut context, init)); |
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assert_eq!(forward(&mut context, "reversed[0]"), "2"); |
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assert_eq!(forward(&mut context, "reversed[1]"), "1"); |
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assert_eq!(forward(&mut context, "arr[0]"), "2"); |
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assert_eq!(forward(&mut context, "arr[1]"), "1"); |
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} |
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|
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#[test] |
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fn index_of() { |
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let mut context = Context::new(); |
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let init = r#" |
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var empty = [ ]; |
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var one = ["a"]; |
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var many = ["a", "b", "c"]; |
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var duplicates = ["a", "b", "c", "a", "b"]; |
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"#; |
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eprintln!("{}", forward(&mut context, init)); |
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|
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// Empty |
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let empty = forward(&mut context, "empty.indexOf('a')"); |
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assert_eq!(empty, String::from("-1")); |
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|
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// One |
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let one = forward(&mut context, "one.indexOf('a')"); |
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assert_eq!(one, String::from("0")); |
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// Missing from one |
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let missing_from_one = forward(&mut context, "one.indexOf('b')"); |
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assert_eq!(missing_from_one, String::from("-1")); |
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|
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// First in many |
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let first_in_many = forward(&mut context, "many.indexOf('a')"); |
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assert_eq!(first_in_many, String::from("0")); |
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// Second in many |
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let second_in_many = forward(&mut context, "many.indexOf('b')"); |
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assert_eq!(second_in_many, String::from("1")); |
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|
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// First in duplicates |
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let first_in_many = forward(&mut context, "duplicates.indexOf('a')"); |
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assert_eq!(first_in_many, String::from("0")); |
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// Second in duplicates |
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let second_in_many = forward(&mut context, "duplicates.indexOf('b')"); |
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assert_eq!(second_in_many, String::from("1")); |
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|
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// Positive fromIndex greater than array length |
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let fromindex_greater_than_length = forward(&mut context, "one.indexOf('a', 2)"); |
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assert_eq!(fromindex_greater_than_length, String::from("-1")); |
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// Positive fromIndex missed match |
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let fromindex_misses_match = forward(&mut context, "many.indexOf('a', 1)"); |
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assert_eq!(fromindex_misses_match, String::from("-1")); |
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// Positive fromIndex matched |
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let fromindex_matches = forward(&mut context, "many.indexOf('b', 1)"); |
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assert_eq!(fromindex_matches, String::from("1")); |
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// Positive fromIndex with duplicates |
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let first_in_many = forward(&mut context, "duplicates.indexOf('a', 1)"); |
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assert_eq!(first_in_many, String::from("3")); |
|
|
|
// Negative fromIndex greater than array length |
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let fromindex_greater_than_length = forward(&mut context, "one.indexOf('a', -2)"); |
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assert_eq!(fromindex_greater_than_length, String::from("0")); |
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// Negative fromIndex missed match |
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let fromindex_misses_match = forward(&mut context, "many.indexOf('b', -1)"); |
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assert_eq!(fromindex_misses_match, String::from("-1")); |
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// Negative fromIndex matched |
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let fromindex_matches = forward(&mut context, "many.indexOf('c', -1)"); |
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assert_eq!(fromindex_matches, String::from("2")); |
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// Negative fromIndex with duplicates |
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let second_in_many = forward(&mut context, "duplicates.indexOf('b', -2)"); |
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assert_eq!(second_in_many, String::from("4")); |
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} |
|
|
|
#[test] |
|
fn last_index_of() { |
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let mut context = Context::new(); |
|
let init = r#" |
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var empty = [ ]; |
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var one = ["a"]; |
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var many = ["a", "b", "c"]; |
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var duplicates = ["a", "b", "c", "a", "b"]; |
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"#; |
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eprintln!("{}", forward(&mut context, init)); |
|
|
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// Empty |
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let empty = forward(&mut context, "empty.lastIndexOf('a')"); |
|
assert_eq!(empty, String::from("-1")); |
|
|
|
// One |
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let one = forward(&mut context, "one.lastIndexOf('a')"); |
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assert_eq!(one, String::from("0")); |
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// Missing from one |
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let missing_from_one = forward(&mut context, "one.lastIndexOf('b')"); |
|
assert_eq!(missing_from_one, String::from("-1")); |
|
|
|
// First in many |
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let first_in_many = forward(&mut context, "many.lastIndexOf('a')"); |
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assert_eq!(first_in_many, String::from("0")); |
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// Second in many |
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let second_in_many = forward(&mut context, "many.lastIndexOf('b')"); |
|
assert_eq!(second_in_many, String::from("1")); |
|
|
|
// 4th in duplicates |
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let first_in_many = forward(&mut context, "duplicates.lastIndexOf('a')"); |
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assert_eq!(first_in_many, String::from("3")); |
|
// 5th in duplicates |
|
let second_in_many = forward(&mut context, "duplicates.lastIndexOf('b')"); |
|
assert_eq!(second_in_many, String::from("4")); |
|
|
|
// Positive fromIndex greater than array length |
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let fromindex_greater_than_length = forward(&mut context, "one.lastIndexOf('a', 2)"); |
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assert_eq!(fromindex_greater_than_length, String::from("0")); |
|
// Positive fromIndex missed match |
|
let fromindex_misses_match = forward(&mut context, "many.lastIndexOf('c', 1)"); |
|
assert_eq!(fromindex_misses_match, String::from("-1")); |
|
// Positive fromIndex matched |
|
let fromindex_matches = forward(&mut context, "many.lastIndexOf('b', 1)"); |
|
assert_eq!(fromindex_matches, String::from("1")); |
|
// Positive fromIndex with duplicates |
|
let first_in_many = forward(&mut context, "duplicates.lastIndexOf('a', 1)"); |
|
assert_eq!(first_in_many, String::from("0")); |
|
|
|
// Negative fromIndex greater than array length |
|
let fromindex_greater_than_length = forward(&mut context, "one.lastIndexOf('a', -2)"); |
|
assert_eq!(fromindex_greater_than_length, String::from("-1")); |
|
// Negative fromIndex missed match |
|
let fromindex_misses_match = forward(&mut context, "many.lastIndexOf('c', -2)"); |
|
assert_eq!(fromindex_misses_match, String::from("-1")); |
|
// Negative fromIndex matched |
|
let fromindex_matches = forward(&mut context, "many.lastIndexOf('c', -1)"); |
|
assert_eq!(fromindex_matches, String::from("2")); |
|
// Negative fromIndex with duplicates |
|
let second_in_many = forward(&mut context, "duplicates.lastIndexOf('b', -2)"); |
|
assert_eq!(second_in_many, String::from("1")); |
|
} |
|
|
|
#[test] |
|
fn fill_obj_ref() { |
|
let mut context = Context::new(); |
|
|
|
// test object reference |
|
forward(&mut context, "a = (new Array(3)).fill({});"); |
|
forward(&mut context, "a[0].hi = 'hi';"); |
|
assert_eq!(forward(&mut context, "a[0].hi"), "\"hi\""); |
|
} |
|
|
|
#[test] |
|
fn fill() { |
|
let mut context = Context::new(); |
|
|
|
forward(&mut context, "var a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4).join()"), |
|
String::from("\"4,4,4\"") |
|
); |
|
// make sure the array is modified |
|
assert_eq!(forward(&mut context, "a.join()"), String::from("\"4,4,4\"")); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, '1').join()"), |
|
String::from("\"1,4,4\"") |
|
); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, 1, 2).join()"), |
|
String::from("\"1,4,3\"") |
|
); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, 1, 1).join()"), |
|
String::from("\"1,2,3\"") |
|
); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, 3, 3).join()"), |
|
String::from("\"1,2,3\"") |
|
); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, -3, -2).join()"), |
|
String::from("\"4,2,3\"") |
|
); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, NaN, NaN).join()"), |
|
String::from("\"1,2,3\"") |
|
); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, 3, 5).join()"), |
|
String::from("\"1,2,3\"") |
|
); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, '1.2', '2.5').join()"), |
|
String::from("\"1,4,3\"") |
|
); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, 'str').join()"), |
|
String::from("\"4,4,4\"") |
|
); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, 'str', 'str').join()"), |
|
String::from("\"1,2,3\"") |
|
); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, undefined, null).join()"), |
|
String::from("\"1,2,3\"") |
|
); |
|
|
|
forward(&mut context, "a = [1, 2, 3];"); |
|
assert_eq!( |
|
forward(&mut context, "a.fill(4, undefined, undefined).join()"), |
|
String::from("\"4,4,4\"") |
|
); |
|
|
|
assert_eq!( |
|
forward(&mut context, "a.fill().join()"), |
|
String::from("\"undefined,undefined,undefined\"") |
|
); |
|
|
|
// test object reference |
|
forward(&mut context, "a = (new Array(3)).fill({});"); |
|
forward(&mut context, "a[0].hi = 'hi';"); |
|
assert_eq!(forward(&mut context, "a[0].hi"), String::from("\"hi\"")); |
|
} |
|
|
|
#[test] |
|
fn includes_value() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var empty = [ ]; |
|
var one = ["a"]; |
|
var many = ["a", "b", "c"]; |
|
var duplicates = ["a", "b", "c", "a", "b"]; |
|
var undefined = [undefined]; |
|
"#; |
|
eprintln!("{}", forward(&mut context, init)); |
|
|
|
// Empty |
|
let empty = forward(&mut context, "empty.includes('a')"); |
|
assert_eq!(empty, String::from("false")); |
|
|
|
// One |
|
let one = forward(&mut context, "one.includes('a')"); |
|
assert_eq!(one, String::from("true")); |
|
// Missing from one |
|
let missing_from_one = forward(&mut context, "one.includes('b')"); |
|
assert_eq!(missing_from_one, String::from("false")); |
|
|
|
// In many |
|
let first_in_many = forward(&mut context, "many.includes('c')"); |
|
assert_eq!(first_in_many, String::from("true")); |
|
// Missing from many |
|
let second_in_many = forward(&mut context, "many.includes('d')"); |
|
assert_eq!(second_in_many, String::from("false")); |
|
|
|
// In duplicates |
|
let first_in_many = forward(&mut context, "duplicates.includes('a')"); |
|
assert_eq!(first_in_many, String::from("true")); |
|
// Missing from duplicates |
|
let second_in_many = forward(&mut context, "duplicates.includes('d')"); |
|
assert_eq!(second_in_many, String::from("false")); |
|
} |
|
|
|
#[test] |
|
fn map() { |
|
let mut context = Context::new(); |
|
|
|
let js = r#" |
|
var empty = []; |
|
var one = ["x"]; |
|
var many = ["x", "y", "z"]; |
|
|
|
// TODO: uncomment when `this` has been implemented |
|
// var _this = { answer: 42 }; |
|
|
|
// function callbackThatUsesThis() { |
|
// return 'The answer to life is: ' + this.answer; |
|
// } |
|
|
|
var empty_mapped = empty.map(v => v + '_'); |
|
var one_mapped = one.map(v => '_' + v); |
|
var many_mapped = many.map(v => '_' + v + '_'); |
|
"#; |
|
|
|
forward(&mut context, js); |
|
|
|
// assert the old arrays have not been modified |
|
assert_eq!(forward(&mut context, "one[0]"), String::from("\"x\"")); |
|
assert_eq!( |
|
forward(&mut context, "many[2] + many[1] + many[0]"), |
|
String::from("\"zyx\"") |
|
); |
|
|
|
// NB: These tests need to be rewritten once `Display` has been implemented for `Array` |
|
// Empty |
|
assert_eq!( |
|
forward(&mut context, "empty_mapped.length"), |
|
String::from("0") |
|
); |
|
|
|
// One |
|
assert_eq!( |
|
forward(&mut context, "one_mapped.length"), |
|
String::from("1") |
|
); |
|
assert_eq!( |
|
forward(&mut context, "one_mapped[0]"), |
|
String::from("\"_x\"") |
|
); |
|
|
|
// Many |
|
assert_eq!( |
|
forward(&mut context, "many_mapped.length"), |
|
String::from("3") |
|
); |
|
assert_eq!( |
|
forward( |
|
&mut context, |
|
"many_mapped[0] + many_mapped[1] + many_mapped[2]" |
|
), |
|
String::from("\"_x__y__z_\"") |
|
); |
|
|
|
// TODO: uncomment when `this` has been implemented |
|
// One but it uses `this` inside the callback |
|
// let one_with_this = forward(&mut context, "one.map(callbackThatUsesThis, _this)[0];"); |
|
// assert_eq!(one_with_this, String::from("The answer to life is: 42")) |
|
} |
|
|
|
#[test] |
|
fn slice() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var empty = [ ].slice(); |
|
var one = ["a"].slice(); |
|
var many1 = ["a", "b", "c", "d"].slice(1); |
|
var many2 = ["a", "b", "c", "d"].slice(2, 3); |
|
var many3 = ["a", "b", "c", "d"].slice(7); |
|
"#; |
|
eprintln!("{}", forward(&mut context, init)); |
|
|
|
assert_eq!(forward(&mut context, "empty.length"), "0"); |
|
assert_eq!(forward(&mut context, "one[0]"), "\"a\""); |
|
assert_eq!(forward(&mut context, "many1[0]"), "\"b\""); |
|
assert_eq!(forward(&mut context, "many1[1]"), "\"c\""); |
|
assert_eq!(forward(&mut context, "many1[2]"), "\"d\""); |
|
assert_eq!(forward(&mut context, "many1.length"), "3"); |
|
assert_eq!(forward(&mut context, "many2[0]"), "\"c\""); |
|
assert_eq!(forward(&mut context, "many2.length"), "1"); |
|
assert_eq!(forward(&mut context, "many3.length"), "0"); |
|
} |
|
|
|
#[test] |
|
fn for_each() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var a = [2, 3, 4, 5]; |
|
var sum = 0; |
|
var indexSum = 0; |
|
var listLengthSum = 0; |
|
function callingCallback(item, index, list) { |
|
sum += item; |
|
indexSum += index; |
|
listLengthSum += list.length; |
|
} |
|
a.forEach(callingCallback); |
|
"#; |
|
eprintln!("{}", forward(&mut context, init)); |
|
|
|
assert_eq!(forward(&mut context, "sum"), "14"); |
|
assert_eq!(forward(&mut context, "indexSum"), "6"); |
|
assert_eq!(forward(&mut context, "listLengthSum"), "16"); |
|
} |
|
|
|
#[test] |
|
fn for_each_push_value() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var a = [1, 2, 3, 4]; |
|
function callingCallback(item, index, list) { |
|
list.push(item * 2); |
|
} |
|
a.forEach(callingCallback); |
|
"#; |
|
eprintln!("{}", forward(&mut context, init)); |
|
|
|
// [ 1, 2, 3, 4, 2, 4, 6, 8 ] |
|
assert_eq!(forward(&mut context, "a.length"), "8"); |
|
assert_eq!(forward(&mut context, "a[4]"), "2"); |
|
assert_eq!(forward(&mut context, "a[5]"), "4"); |
|
assert_eq!(forward(&mut context, "a[6]"), "6"); |
|
assert_eq!(forward(&mut context, "a[7]"), "8"); |
|
} |
|
|
|
#[test] |
|
fn filter() { |
|
let mut context = Context::new(); |
|
|
|
let js = r#" |
|
var empty = []; |
|
var one = ["1"]; |
|
var many = ["1", "0", "1"]; |
|
|
|
var empty_filtered = empty.filter(v => v === "1"); |
|
var one_filtered = one.filter(v => v === "1"); |
|
var zero_filtered = one.filter(v => v === "0"); |
|
var many_one_filtered = many.filter(v => v === "1"); |
|
var many_zero_filtered = many.filter(v => v === "0"); |
|
"#; |
|
|
|
forward(&mut context, js); |
|
|
|
// assert the old arrays have not been modified |
|
assert_eq!(forward(&mut context, "one[0]"), String::from("\"1\"")); |
|
assert_eq!( |
|
forward(&mut context, "many[2] + many[1] + many[0]"), |
|
String::from("\"101\"") |
|
); |
|
|
|
// NB: These tests need to be rewritten once `Display` has been implemented for `Array` |
|
// Empty |
|
assert_eq!( |
|
forward(&mut context, "empty_filtered.length"), |
|
String::from("0") |
|
); |
|
|
|
// One filtered on "1" |
|
assert_eq!( |
|
forward(&mut context, "one_filtered.length"), |
|
String::from("1") |
|
); |
|
assert_eq!( |
|
forward(&mut context, "one_filtered[0]"), |
|
String::from("\"1\"") |
|
); |
|
|
|
// One filtered on "0" |
|
assert_eq!( |
|
forward(&mut context, "zero_filtered.length"), |
|
String::from("0") |
|
); |
|
|
|
// Many filtered on "1" |
|
assert_eq!( |
|
forward(&mut context, "many_one_filtered.length"), |
|
String::from("2") |
|
); |
|
assert_eq!( |
|
forward(&mut context, "many_one_filtered[0] + many_one_filtered[1]"), |
|
String::from("\"11\"") |
|
); |
|
|
|
// Many filtered on "0" |
|
assert_eq!( |
|
forward(&mut context, "many_zero_filtered.length"), |
|
String::from("1") |
|
); |
|
assert_eq!( |
|
forward(&mut context, "many_zero_filtered[0]"), |
|
String::from("\"0\"") |
|
); |
|
} |
|
|
|
#[test] |
|
fn some() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var empty = []; |
|
|
|
var array = [11, 23, 45]; |
|
function lessThan10(element) { |
|
return element > 10; |
|
} |
|
function greaterThan10(element) { |
|
return element < 10; |
|
} |
|
|
|
// Cases where callback mutates the array. |
|
var appendArray = [1,2,3,4]; |
|
function appendingCallback(elem,index,arr) { |
|
arr.push('new'); |
|
return elem !== "new"; |
|
} |
|
|
|
var delArray = [1,2,3,4]; |
|
function deletingCallback(elem,index,arr) { |
|
arr.pop() |
|
return elem < 3; |
|
} |
|
"#; |
|
forward(&mut context, init); |
|
let result = forward(&mut context, "array.some(lessThan10);"); |
|
assert_eq!(result, "true"); |
|
|
|
let result = forward(&mut context, "empty.some(lessThan10);"); |
|
assert_eq!(result, "false"); |
|
|
|
let result = forward(&mut context, "array.some(greaterThan10);"); |
|
assert_eq!(result, "false"); |
|
|
|
let result = forward(&mut context, "appendArray.some(appendingCallback);"); |
|
let append_array_length = forward(&mut context, "appendArray.length"); |
|
assert_eq!(append_array_length, "5"); |
|
assert_eq!(result, "true"); |
|
|
|
let result = forward(&mut context, "delArray.some(deletingCallback);"); |
|
let del_array_length = forward(&mut context, "delArray.length"); |
|
assert_eq!(del_array_length, "3"); |
|
assert_eq!(result, "true"); |
|
} |
|
|
|
#[test] |
|
fn reduce() { |
|
let mut context = Context::new(); |
|
|
|
let init = r#" |
|
var arr = [1, 2, 3, 4]; |
|
function add(acc, x) { |
|
return acc + x; |
|
} |
|
|
|
function addIdx(acc, _, idx) { |
|
return acc + idx; |
|
} |
|
|
|
function addLen(acc, _x, _idx, arr) { |
|
return acc + arr.length; |
|
} |
|
|
|
function addResize(acc, x, idx, arr) { |
|
if(idx == 0) { |
|
arr.length = 3; |
|
} |
|
return acc + x; |
|
} |
|
var delArray = [1, 2, 3, 4, 5]; |
|
delete delArray[0]; |
|
delete delArray[1]; |
|
delete delArray[3]; |
|
|
|
"#; |
|
forward(&mut context, init); |
|
|
|
// empty array |
|
let result = forward(&mut context, "[].reduce(add, 0)"); |
|
assert_eq!(result, "0"); |
|
|
|
// simple with initial value |
|
let result = forward(&mut context, "arr.reduce(add, 0)"); |
|
assert_eq!(result, "10"); |
|
|
|
// without initial value |
|
let result = forward(&mut context, "arr.reduce(add)"); |
|
assert_eq!(result, "10"); |
|
|
|
// with some items missing |
|
let result = forward(&mut context, "delArray.reduce(add, 0)"); |
|
assert_eq!(result, "8"); |
|
|
|
// with index |
|
let result = forward(&mut context, "arr.reduce(addIdx, 0)"); |
|
assert_eq!(result, "6"); |
|
|
|
// with array |
|
let result = forward(&mut context, "arr.reduce(addLen, 0)"); |
|
assert_eq!(result, "16"); |
|
|
|
// resizing the array as reduce progresses |
|
let result = forward(&mut context, "arr.reduce(addResize, 0)"); |
|
assert_eq!(result, "6"); |
|
|
|
// Empty array |
|
let result = forward( |
|
&mut context, |
|
r#" |
|
try { |
|
[].reduce((acc, x) => acc + x); |
|
} catch(e) { |
|
e.message |
|
} |
|
"#, |
|
); |
|
assert_eq!( |
|
result, |
|
"\"Reduce was called on an empty array and with no initial value\"" |
|
); |
|
|
|
// Array with no defined elements |
|
let result = forward( |
|
&mut context, |
|
r#" |
|
try { |
|
var arr = [0, 1]; |
|
delete arr[0]; |
|
delete arr[1]; |
|
arr.reduce((acc, x) => acc + x); |
|
} catch(e) { |
|
e.message |
|
} |
|
"#, |
|
); |
|
assert_eq!( |
|
result, |
|
"\"Reduce was called on an empty array and with no initial value\"" |
|
); |
|
|
|
// No callback |
|
let result = forward( |
|
&mut context, |
|
r#" |
|
try { |
|
arr.reduce(""); |
|
} catch(e) { |
|
e.message |
|
} |
|
"#, |
|
); |
|
assert_eq!(result, "\"Reduce was called without a callback\""); |
|
} |
|
|
|
#[test] |
|
fn reduce_right() { |
|
let mut context = Context::new(); |
|
|
|
let init = r#" |
|
var arr = [1, 2, 3, 4]; |
|
function sub(acc, x) { |
|
return acc - x; |
|
} |
|
|
|
function subIdx(acc, _, idx) { |
|
return acc - idx; |
|
} |
|
|
|
function subLen(acc, _x, _idx, arr) { |
|
return acc - arr.length; |
|
} |
|
|
|
function subResize(acc, x, idx, arr) { |
|
if(idx == arr.length - 1) { |
|
arr.length = 1; |
|
} |
|
return acc - x; |
|
} |
|
function subResize0(acc, x, idx, arr) { |
|
if(idx == arr.length - 2) { |
|
arr.length = 0; |
|
} |
|
return acc - x; |
|
} |
|
var delArray = [1, 2, 3, 4, 5]; |
|
delete delArray[0]; |
|
delete delArray[1]; |
|
delete delArray[3]; |
|
|
|
"#; |
|
forward(&mut context, init); |
|
|
|
// empty array |
|
let result = forward(&mut context, "[].reduceRight(sub, 0)"); |
|
assert_eq!(result, "0"); |
|
|
|
// simple with initial value |
|
let result = forward(&mut context, "arr.reduceRight(sub, 0)"); |
|
assert_eq!(result, "-10"); |
|
|
|
// without initial value |
|
let result = forward(&mut context, "arr.reduceRight(sub)"); |
|
assert_eq!(result, "-2"); |
|
|
|
// with some items missing |
|
let result = forward(&mut context, "delArray.reduceRight(sub, 0)"); |
|
assert_eq!(result, "-8"); |
|
|
|
// with index |
|
let result = forward(&mut context, "arr.reduceRight(subIdx)"); |
|
assert_eq!(result, "1"); |
|
|
|
// with array |
|
let result = forward(&mut context, "arr.reduceRight(subLen)"); |
|
assert_eq!(result, "-8"); |
|
|
|
// resizing the array as reduce progresses |
|
let result = forward(&mut context, "arr.reduceRight(subResize, 0)"); |
|
assert_eq!(result, "-5"); |
|
|
|
// reset array |
|
forward(&mut context, "arr = [1, 2, 3, 4];"); |
|
|
|
// resizing the array to 0 as reduce progresses |
|
let result = forward(&mut context, "arr.reduceRight(subResize0, 0)"); |
|
assert_eq!(result, "-7"); |
|
|
|
// Empty array |
|
let result = forward( |
|
&mut context, |
|
r#" |
|
try { |
|
[].reduceRight((acc, x) => acc + x); |
|
} catch(e) { |
|
e.message |
|
} |
|
"#, |
|
); |
|
assert_eq!( |
|
result, |
|
"\"reduceRight was called on an empty array and with no initial value\"" |
|
); |
|
|
|
// Array with no defined elements |
|
let result = forward( |
|
&mut context, |
|
r#" |
|
try { |
|
var arr = [0, 1]; |
|
delete arr[0]; |
|
delete arr[1]; |
|
arr.reduceRight((acc, x) => acc + x); |
|
} catch(e) { |
|
e.message |
|
} |
|
"#, |
|
); |
|
assert_eq!( |
|
result, |
|
"\"reduceRight was called on an empty array and with no initial value\"" |
|
); |
|
|
|
// No callback |
|
let result = forward( |
|
&mut context, |
|
r#" |
|
try { |
|
arr.reduceRight(""); |
|
} catch(e) { |
|
e.message |
|
} |
|
"#, |
|
); |
|
assert_eq!(result, "\"reduceRight was called without a callback\""); |
|
} |
|
|
|
#[test] |
|
fn call_array_constructor_with_one_argument() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var empty = new Array(0); |
|
|
|
var five = new Array(5); |
|
|
|
var one = new Array("Hello, world!"); |
|
"#; |
|
forward(&mut context, init); |
|
// let result = forward(&mut context, "empty.length"); |
|
// assert_eq!(result, "0"); |
|
|
|
// let result = forward(&mut context, "five.length"); |
|
// assert_eq!(result, "5"); |
|
|
|
// let result = forward(&mut context, "one.length"); |
|
// assert_eq!(result, "1"); |
|
} |
|
|
|
#[test] |
|
fn array_values_simple() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var iterator = [1, 2, 3].values(); |
|
var next = iterator.next(); |
|
"#; |
|
forward(&mut context, init); |
|
assert_eq!(forward(&mut context, "next.value"), "1"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "2"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "3"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "undefined"); |
|
assert_eq!(forward(&mut context, "next.done"), "true"); |
|
} |
|
|
|
#[test] |
|
fn array_keys_simple() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var iterator = [1, 2, 3].keys(); |
|
var next = iterator.next(); |
|
"#; |
|
forward(&mut context, init); |
|
assert_eq!(forward(&mut context, "next.value"), "0"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "1"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "2"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "undefined"); |
|
assert_eq!(forward(&mut context, "next.done"), "true"); |
|
} |
|
|
|
#[test] |
|
fn array_entries_simple() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var iterator = [1, 2, 3].entries(); |
|
var next = iterator.next(); |
|
"#; |
|
forward(&mut context, init); |
|
assert_eq!(forward(&mut context, "next.value"), "[ 0, 1 ]"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "[ 1, 2 ]"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "[ 2, 3 ]"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "undefined"); |
|
assert_eq!(forward(&mut context, "next.done"), "true"); |
|
} |
|
|
|
#[test] |
|
fn array_values_empty() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var iterator = [].values(); |
|
var next = iterator.next(); |
|
"#; |
|
forward(&mut context, init); |
|
assert_eq!(forward(&mut context, "next.value"), "undefined"); |
|
assert_eq!(forward(&mut context, "next.done"), "true"); |
|
} |
|
|
|
#[test] |
|
fn array_values_sparse() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var array = Array(); |
|
array[3] = 5; |
|
var iterator = array.values(); |
|
var next = iterator.next(); |
|
"#; |
|
forward(&mut context, init); |
|
assert_eq!(forward(&mut context, "next.value"), "undefined"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "undefined"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "undefined"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "5"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "undefined"); |
|
assert_eq!(forward(&mut context, "next.done"), "true"); |
|
} |
|
|
|
#[test] |
|
fn array_symbol_iterator() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var iterator = [1, 2, 3][Symbol.iterator](); |
|
var next = iterator.next(); |
|
"#; |
|
forward(&mut context, init); |
|
assert_eq!(forward(&mut context, "next.value"), "1"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "2"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "3"); |
|
assert_eq!(forward(&mut context, "next.done"), "false"); |
|
forward(&mut context, "next = iterator.next()"); |
|
assert_eq!(forward(&mut context, "next.value"), "undefined"); |
|
assert_eq!(forward(&mut context, "next.done"), "true"); |
|
} |
|
|
|
#[test] |
|
fn array_values_symbol_iterator() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
var iterator = [1, 2, 3].values(); |
|
iterator === iterator[Symbol.iterator](); |
|
"#; |
|
assert_eq!(forward(&mut context, init), "true"); |
|
} |
|
|
|
#[test] |
|
fn array_spread_arrays() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
const array1 = [2, 3]; |
|
const array2 = [1, ...array1]; |
|
array2[0] === 1 && array2[1] === 2 && array2[2] === 3; |
|
"#; |
|
assert_eq!(forward(&mut context, init), "true"); |
|
} |
|
|
|
#[test] |
|
fn array_spread_non_iterable() { |
|
let mut context = Context::new(); |
|
let init = r#" |
|
try { |
|
const array2 = [...5]; |
|
} catch (err) { |
|
err.name === "TypeError" && err.message === "Not an iterable" |
|
} |
|
"#; |
|
assert_eq!(forward(&mut context, init), "true"); |
|
} |
|
|
|
#[test] |
|
fn get_relative_start() { |
|
let mut context = Context::new(); |
|
|
|
assert_eq!(Array::get_relative_start(&mut context, None, 10), Ok(0)); |
|
assert_eq!( |
|
Array::get_relative_start(&mut context, Some(&Value::undefined()), 10), |
|
Ok(0) |
|
); |
|
assert_eq!( |
|
Array::get_relative_start(&mut context, Some(&Value::from(f64::NEG_INFINITY)), 10), |
|
Ok(0) |
|
); |
|
assert_eq!( |
|
Array::get_relative_start(&mut context, Some(&Value::from(f64::INFINITY)), 10), |
|
Ok(10) |
|
); |
|
assert_eq!( |
|
Array::get_relative_start(&mut context, Some(&Value::from(-1)), 10), |
|
Ok(9) |
|
); |
|
assert_eq!( |
|
Array::get_relative_start(&mut context, Some(&Value::from(1)), 10), |
|
Ok(1) |
|
); |
|
assert_eq!( |
|
Array::get_relative_start(&mut context, Some(&Value::from(-11)), 10), |
|
Ok(0) |
|
); |
|
assert_eq!( |
|
Array::get_relative_start(&mut context, Some(&Value::from(11)), 10), |
|
Ok(10) |
|
); |
|
assert_eq!( |
|
Array::get_relative_start(&mut context, Some(&Value::from(f64::MIN)), 10), |
|
Ok(0) |
|
); |
|
assert_eq!( |
|
Array::get_relative_start( |
|
&mut context, |
|
Some(&Value::from(Number::MIN_SAFE_INTEGER)), |
|
10 |
|
), |
|
Ok(0) |
|
); |
|
assert_eq!( |
|
Array::get_relative_start(&mut context, Some(&Value::from(f64::MAX)), 10), |
|
Ok(10) |
|
); |
|
|
|
// This test is relevant only on 32-bit archs (where usize == u32 thus `len` is u32) |
|
assert_eq!( |
|
Array::get_relative_start( |
|
&mut context, |
|
Some(&Value::from(Number::MAX_SAFE_INTEGER)), |
|
10 |
|
), |
|
Ok(10) |
|
); |
|
} |
|
|
|
#[test] |
|
fn get_relative_end() { |
|
let mut context = Context::new(); |
|
|
|
assert_eq!(Array::get_relative_end(&mut context, None, 10), Ok(10)); |
|
assert_eq!( |
|
Array::get_relative_end(&mut context, Some(&Value::undefined()), 10), |
|
Ok(10) |
|
); |
|
assert_eq!( |
|
Array::get_relative_end(&mut context, Some(&Value::from(f64::NEG_INFINITY)), 10), |
|
Ok(0) |
|
); |
|
assert_eq!( |
|
Array::get_relative_end(&mut context, Some(&Value::from(f64::INFINITY)), 10), |
|
Ok(10) |
|
); |
|
assert_eq!( |
|
Array::get_relative_end(&mut context, Some(&Value::from(-1)), 10), |
|
Ok(9) |
|
); |
|
assert_eq!( |
|
Array::get_relative_end(&mut context, Some(&Value::from(1)), 10), |
|
Ok(1) |
|
); |
|
assert_eq!( |
|
Array::get_relative_end(&mut context, Some(&Value::from(-11)), 10), |
|
Ok(0) |
|
); |
|
assert_eq!( |
|
Array::get_relative_end(&mut context, Some(&Value::from(11)), 10), |
|
Ok(10) |
|
); |
|
assert_eq!( |
|
Array::get_relative_end(&mut context, Some(&Value::from(f64::MIN)), 10), |
|
Ok(0) |
|
); |
|
assert_eq!( |
|
Array::get_relative_end( |
|
&mut context, |
|
Some(&Value::from(Number::MIN_SAFE_INTEGER)), |
|
10 |
|
), |
|
Ok(0) |
|
); |
|
assert_eq!( |
|
Array::get_relative_end(&mut context, Some(&Value::from(f64::MAX)), 10), |
|
Ok(10) |
|
); |
|
|
|
// This test is relevant only on 32-bit archs (where usize == u32 thus `len` is u32) |
|
assert_eq!( |
|
Array::get_relative_end( |
|
&mut context, |
|
Some(&Value::from(Number::MAX_SAFE_INTEGER)), |
|
10 |
|
), |
|
Ok(10) |
|
); |
|
} |
|
|
|
#[test] |
|
fn array_length_is_not_enumerable() { |
|
let context = Context::new(); |
|
|
|
let array = Array::new_array(&context).unwrap(); |
|
let desc = array.get_property("length").unwrap(); |
|
assert!(!desc.enumerable()); |
|
}
|
|
|