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commom/Preconditions Util Test (#1727)

* common/parameterUtils unit test
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xingchun-chen 5 years ago committed by dailidong
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dad643dbb5
  1. 170
      dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/utils/PreconditionsTest.java

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dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/utils/PreconditionsTest.java

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.dolphinscheduler.common.utils;
import org.junit.Assert;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static org.hamcrest.core.StringContains.containsString;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertThat;
public class PreconditionsTest {
public static final Logger logger = LoggerFactory.getLogger(PreconditionsTest.class);
/**
* Test checkNotNull
*/
@Test
public void testCheckNotNull() throws Exception {
String testReference = "test reference";
//test reference is not null
Assert.assertEquals(testReference,Preconditions.checkNotNull(testReference));
Assert.assertEquals(testReference,Preconditions.checkNotNull(testReference,"reference is null"));
Assert.assertEquals(testReference,Preconditions.checkNotNull(testReference,"%s is null",testReference));
//test reference is null
try {
Preconditions.checkNotNull(null);
} catch (NullPointerException ex) {
assertNull(ex.getMessage());
}
try {
Preconditions.checkNotNull("");
} catch (NullPointerException ex) {
assertNull(ex.getMessage());
}
//test reference is null ,expect contains errorMessage
try {
Preconditions.checkNotNull(null,"reference is null");
} catch (NullPointerException ex) {
assertThat(ex.getMessage(), containsString("reference is null"));
}
try {
Preconditions.checkNotNull("","reference is null");
} catch (NullPointerException ex) {
assertThat(ex.getMessage(), containsString("reference is null"));
}
//test reference is null ,expect contains errorMessageTemplate and errorMessageArgs
try {
Preconditions.checkNotNull(null,"%s is null",testReference);
} catch (NullPointerException ex) {
assertThat(ex.getMessage(), containsString(testReference + " is null"));
}
try {
Preconditions.checkNotNull("","%s is null",testReference);
} catch (NullPointerException ex) {
assertThat(ex.getMessage(), containsString(testReference + " is null"));
}
}
/**
* Test checkArgument
*/
@Test
public void testCheckArgument() throws Exception {
int argument = 100;
//boolean condition is true
Preconditions.checkArgument(argument > 0 && argument < 200);
//boolean condition is false
try {
Preconditions.checkArgument(argument > 0 && argument < 50);
} catch (IllegalArgumentException ex) {
assertNull(ex.getMessage());
}
//boolean condition is false ,expect contains errorMessage
try {
Preconditions.checkArgument(argument > 300, "argument is error");
} catch (IllegalArgumentException ex) {
assertThat(ex.getMessage(), containsString("argument is error"));
}
//boolean condition is false,expect contains errorMessageTemplate and errorMessageArgs
try {
Preconditions.checkArgument(argument > 0 && argument < 99, "argument %s is error",argument);
} catch (IllegalArgumentException ex) {
assertThat(ex.getMessage(), containsString( "argument " + argument + " is error"));
}
}
/**
* Test checkState
*/
@Test
public void testCheckState() throws Exception {
int state = 1;
//boolean condition is true
Preconditions.checkState(state == 1);
Preconditions.checkState(state > -1);
//boolean condition is false
try {
Preconditions.checkState(state > 2);
} catch (IllegalStateException ex) {
assertNull(ex.getMessage());
}
//boolean condition is false ,expect contains errorMessage
try {
Preconditions.checkState(state < 1, "state is error");
} catch (IllegalStateException ex) {
assertThat(ex.getMessage(), containsString("state is error"));
}
//boolean condition is false,expect contains errorMessageTemplate and errorMessageArgs
try {
Preconditions.checkState(state < -1 , "state %s is error",state);
} catch (IllegalStateException ex) {
assertThat(ex.getMessage(), containsString( "state " + state + " is error"));
}
}
/**
* Test checkElementIndex
*/
@Test
public void testCheckElementIndex() throws Exception {
int index = 2;
int size = 30;
//boolean condition is true
Preconditions.checkElementIndex(index, size);
//boolean condition is false
try {
Preconditions.checkElementIndex(-1, 10);
} catch (IndexOutOfBoundsException ex) {
assertThat(ex.getMessage(), containsString("Index: -1, Size: 10"));
}
//boolean condition is false ,expect contains errorMessage
try {
Preconditions.checkElementIndex(100, 50, "index is greater than size");
} catch (IndexOutOfBoundsException ex) {
assertThat(ex.getMessage(), containsString("index is greater than size Index: 100, Size: 50"));
}
}
}
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