multiple properties path token at the end of the path: tests and fix

json-path/src/main/java/com/jayway/jsonpath/internal/token/ScanPathToken.java

@@ -167,16 +167,29 @@ public class ScanPathToken extends PathToken {
 
         @Override
         public boolean matches(Object model) {
-            if (ctx.jsonProvider().isMap(model)) {
+            if (! ctx.jsonProvider().isMap(model)) {
+                return false;
+            }
+
             if (ctx.options().contains(Option.REQUIRE_PROPERTIES)) {
                 // Have to require properties defined in path when an indefinite path is evaluated,
                 // so have to go there and search for it.
                 return true;
             }
+
+            if (! propertyPathToken.isTokenDefinite()) {
+                // It's responsibility of PropertyPathToken code to handle indefinite scenario of properties,
+                // so we'll allow it to do its job.
+                return true;
+            }
+
+            if (ctx.options().contains(Option.DEFAULT_PATH_LEAF_TO_NULL)) {
+                // In case of DEFAULT_PATH_LEAF_TO_NULL missing properties is not a problem.
+                return true;
+            }
+
             Collection<String> keys = ctx.jsonProvider().getPropertyKeys(model);
             return keys.containsAll(propertyPathToken.getProperties());
         }
-            return false;
-        }
     }
 }

json-path/src/test/java/com/jayway/jsonpath/DeepScanTest.java

@@ -2,10 +2,14 @@ package com.jayway.jsonpath;
 
 import org.junit.Test;
 
+import static com.jayway.jsonpath.JsonPath.using;
 import static com.jayway.jsonpath.TestUtils.assertEvaluationThrows;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
+import java.util.List;
+import java.util.Map;
+
 /**
  * Deep scan is indefinite, so certain "illegal" actions become a no-op instead of a path evaluation exception.
  */
@@ -84,5 +88,31 @@ public class DeepScanTest extends BaseTest {
 
         // foo.bar must be found in every object node after deep scan (which is impossible)
         assertEvaluationThrows("{\"foo\": {\"bar\": 4}}", "$..foo.bar", PathNotFoundException.class, conf);
+
+        assertEvaluationThrows("{\"foo\": {\"bar\": 4}, \"baz\": 2}", "$..['foo', 'baz']", PathNotFoundException.class, conf);
+    }
+
+    @Test
+    public void when_deep_scanning_leaf_multi_props_work() {
+        Object result = JsonPath.parse("[{\"a\": \"a-val\", \"b\": \"b-val\", \"c\": \"c-val\"}, [1, 5], {\"a\": \"a-val\"}]").read(
+                "$..['a', 'c']");
+        // This is current deep scan semantics: only objects containing all properties specified in multiprops token are
+        // considered.
+        assertThat(result).asList().hasSize(1);
+        result = ((List)result).get(0);
+
+        assertThat(result).isInstanceOf(Map.class);
+        assertThat((Map)result).hasSize(2).containsEntry("a", "a-val").containsEntry("c", "c-val");
+
+        // But this semantics changes when DEFAULT_PATH_LEAF_TO_NULL comes into play.
+        Configuration conf = Configuration.defaultConfiguration().addOptions(Option.DEFAULT_PATH_LEAF_TO_NULL);
+        result = using(conf).parse("[{\"a\": \"a-val\", \"b\": \"b-val\", \"c\": \"c-val\"}, [1, 5], {\"a\": \"a-val\"}]").read(
+                "$..['a', 'c']");
+        // todo: deep equality test, but not tied to any json provider
+        assertThat(result).asList().hasSize(2);
+        for (final Object node : (List)result) {
+            assertThat(node).isInstanceOf(Map.class);
+            assertThat((Map)node).hasSize(2).containsEntry("a", "a-val");
+        }
     }
 }

json-path/src/test/java/com/jayway/jsonpath/MultiPropTest.java

@@ -24,6 +24,10 @@ public class MultiPropTest {
         assertThat(using(conf).parse(model).read("$['a', 'b']", Map.class))
                 .containsEntry("a", "a-val")
                 .containsEntry("b", "b-val");
+
+        // current semantics: absent props are skipped
+        assertThat(using(conf).parse(model).read("$['a', 'd']", Map.class))
+                .hasSize(1).containsEntry("a", "a-val");
     }
 
     @Test