下面列出了com.facebook.react.bridge.ReadableNativeMap#keySetIterator ( ) 实例代码,或者点击链接到github查看源代码,也可以在右侧发表评论。
public void testMapIterateOverMapWithBasicTypes() {
mCatalystInstance.getJSModule(TestJSToJavaParametersModule.class).returnMapWithBasicTypes();
waitForBridgeAndUIIdle();
List<ReadableMap> calls = mRecordingTestModule.getMapCalls();
assertEquals(1, calls.size());
ReadableNativeMap map = (ReadableNativeMap) calls.get(0);
assertNotNull(map);
ReadableMapKeySetIterator mapIterator = map.keySetIterator();
Set<String> keys = new HashSet<String>();
while (mapIterator.hasNextKey()) {
keys.add(mapIterator.nextKey());
}
Set<String> expectedKeys = new HashSet<String>(
Arrays.asList("stringKey", "doubleKey", "intKey", "booleanKey", "nullKey"));
assertEquals(keys, expectedKeys);
}
public void testMapIterateOverNestedMaps() {
mCatalystInstance.getJSModule(TestJSToJavaParametersModule.class).returnNestedMap();
waitForBridgeAndUIIdle();
List<ReadableMap> calls = mRecordingTestModule.getMapCalls();
assertEquals(1, calls.size());
ReadableNativeMap map = (ReadableNativeMap) calls.get(0);
assertNotNull(map);
ReadableMapKeySetIterator firstLevelIterator = map.keySetIterator();
String firstLevelKey = firstLevelIterator.nextKey();
assertEquals(firstLevelKey, "weHaveToGoDeeper");
ReadableNativeMap secondMap = map.getMap("weHaveToGoDeeper");
ReadableMapKeySetIterator secondLevelIterator = secondMap.keySetIterator();
String secondLevelKey = secondLevelIterator.nextKey();
assertEquals(secondLevelKey, "inception");
assertTrue(secondMap.getBoolean(secondLevelKey));
}
public void testInvalidIteratorExceptionThrown() {
mCatalystInstance.getJSModule(TestJSToJavaParametersModule.class).returnMapWithBasicTypes();
waitForBridgeAndUIIdle();
List<ReadableMap> calls = mRecordingTestModule.getMapCalls();
assertEquals(1, calls.size());
ReadableNativeMap map = (ReadableNativeMap) calls.get(0);
assertNotNull(map);
ReadableMapKeySetIterator mapIterator = map.keySetIterator();
while (mapIterator.hasNextKey()) {
mapIterator.nextKey();
}
assertInvalidIteratorExceptionThrown(mapIterator);
}