/
JsonTreeWriterTest.java
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/
JsonTreeWriterTest.java
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/*
* Copyright (C) 2011 Google Inc.
*
* Licensed 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 com.google.gson.internal.bind;
import com.google.gson.JsonNull;
import java.io.IOException;
import junit.framework.TestCase;
@SuppressWarnings("resource")
public final class JsonTreeWriterTest extends TestCase {
public void testArray() throws IOException {
JsonTreeWriter writer = new JsonTreeWriter();
writer.beginArray();
writer.value(1);
writer.value(2);
writer.value(3);
writer.endArray();
assertEquals("[1,2,3]", writer.get().toString());
}
public void testNestedArray() throws IOException {
JsonTreeWriter writer = new JsonTreeWriter();
writer.beginArray();
writer.beginArray();
writer.endArray();
writer.beginArray();
writer.beginArray();
writer.endArray();
writer.endArray();
writer.endArray();
assertEquals("[[],[[]]]", writer.get().toString());
}
public void testObject() throws IOException {
JsonTreeWriter writer = new JsonTreeWriter();
writer.beginObject();
writer.name("A").value(1);
writer.name("B").value(2);
writer.endObject();
assertEquals("{\"A\":1,\"B\":2}", writer.get().toString());
}
public void testNestedObject() throws IOException {
JsonTreeWriter writer = new JsonTreeWriter();
writer.beginObject();
writer.name("A");
writer.beginObject();
writer.name("B");
writer.beginObject();
writer.endObject();
writer.endObject();
writer.name("C");
writer.beginObject();
writer.endObject();
writer.endObject();
assertEquals("{\"A\":{\"B\":{}},\"C\":{}}", writer.get().toString());
}
public void testWriteAfterClose() throws Exception {
JsonTreeWriter writer = new JsonTreeWriter();
writer.setLenient(true);
writer.beginArray();
writer.value("A");
writer.endArray();
writer.close();
try {
writer.beginArray();
fail();
} catch (IllegalStateException expected) {
}
}
public void testPrematureClose() throws Exception {
JsonTreeWriter writer = new JsonTreeWriter();
writer.setLenient(true);
writer.beginArray();
try {
writer.close();
fail();
} catch (IOException expected) {
}
}
public void testSerializeNullsFalse() throws IOException {
JsonTreeWriter writer = new JsonTreeWriter();
writer.setSerializeNulls(false);
writer.beginObject();
writer.name("A");
writer.nullValue();
writer.endObject();
assertEquals("{}", writer.get().toString());
}
public void testSerializeNullsTrue() throws IOException {
JsonTreeWriter writer = new JsonTreeWriter();
writer.setSerializeNulls(true);
writer.beginObject();
writer.name("A");
writer.nullValue();
writer.endObject();
assertEquals("{\"A\":null}", writer.get().toString());
}
public void testEmptyWriter() {
JsonTreeWriter writer = new JsonTreeWriter();
assertEquals(JsonNull.INSTANCE, writer.get());
}
public void testBeginArray() throws Exception {
JsonTreeWriter writer = new JsonTreeWriter();
assertEquals(writer, writer.beginArray());
}
public void testBeginObject() throws Exception {
JsonTreeWriter writer = new JsonTreeWriter();
assertEquals(writer, writer.beginObject());
}
public void testValueString() throws Exception {
JsonTreeWriter writer = new JsonTreeWriter();
String n = "as";
assertEquals(writer, writer.value(n));
}
public void testBoolValue() throws Exception {
JsonTreeWriter writer = new JsonTreeWriter();
boolean bool = true;
assertEquals(writer, writer.value(bool));
}
public void testBoolMaisValue() throws Exception {
JsonTreeWriter writer = new JsonTreeWriter();
Boolean bool = true;
assertEquals(writer, writer.value(bool));
}
public void testLenientNansAndInfinities() throws IOException {
JsonTreeWriter writer = new JsonTreeWriter();
writer.setLenient(true);
writer.beginArray();
writer.value(Float.NaN);
writer.value(Float.NEGATIVE_INFINITY);
writer.value(Float.POSITIVE_INFINITY);
writer.value(Double.NaN);
writer.value(Double.NEGATIVE_INFINITY);
writer.value(Double.POSITIVE_INFINITY);
writer.endArray();
assertEquals("[NaN,-Infinity,Infinity,NaN,-Infinity,Infinity]", writer.get().toString());
}
public void testStrictNansAndInfinities() throws IOException {
JsonTreeWriter writer = new JsonTreeWriter();
writer.setLenient(false);
writer.beginArray();
try {
writer.value(Float.NaN);
fail();
} catch (IllegalArgumentException expected) {
}
try {
writer.value(Float.NEGATIVE_INFINITY);
fail();
} catch (IllegalArgumentException expected) {
}
try {
writer.value(Float.POSITIVE_INFINITY);
fail();
} catch (IllegalArgumentException expected) {
}
try {
writer.value(Double.NaN);
fail();
} catch (IllegalArgumentException expected) {
}
try {
writer.value(Double.NEGATIVE_INFINITY);
fail();
} catch (IllegalArgumentException expected) {
}
try {
writer.value(Double.POSITIVE_INFINITY);
fail();
} catch (IllegalArgumentException expected) {
}
}
public void testStrictBoxedNansAndInfinities() throws IOException {
JsonTreeWriter writer = new JsonTreeWriter();
writer.setLenient(false);
writer.beginArray();
try {
writer.value(Float.valueOf(Float.NaN));
fail();
} catch (IllegalArgumentException expected) {
}
try {
writer.value(Float.valueOf(Float.NEGATIVE_INFINITY));
fail();
} catch (IllegalArgumentException expected) {
}
try {
writer.value(Float.valueOf(Float.POSITIVE_INFINITY));
fail();
} catch (IllegalArgumentException expected) {
}
try {
writer.value(Double.valueOf(Double.NaN));
fail();
} catch (IllegalArgumentException expected) {
}
try {
writer.value(Double.valueOf(Double.NEGATIVE_INFINITY));
fail();
} catch (IllegalArgumentException expected) {
}
try {
writer.value(Double.valueOf(Double.POSITIVE_INFINITY));
fail();
} catch (IllegalArgumentException expected) {
}
}
}