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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.text;
import org.junit.Test;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import static org.junit.Assert.*;
/**
* Tests the JSON writer
*
* @author bratseth
*/
@SuppressWarnings("deprecation")
public class JSONWriterTestCase {
@Test
public void testJSONWriter() throws IOException {
OutputStream out = new ByteArrayOutputStream();
JSONWriter w = new JSONWriter(out);
w.beginObject();
w.beginField("string").value("a string").endField();
w.beginField("number").value(37).endField();
w.beginField("true").value(true).endField();
w.beginField("false").value(false).endField();
w.beginField("null").value().endField();
w.beginField("object").beginObject();
w.beginField("nested-array").beginArray().beginArrayValue().value(1).endArrayValue().endArray().endField();
w.endObject().endField();
w.beginField("array").beginArray();
w.beginArrayValue().value("item1").endArrayValue();
w.beginArrayValue().value("item2").endArrayValue();
w.beginArrayValue().beginObject().beginField("nested").value("item3").endField().endObject().endArrayValue();
w.endArray().endField();
w.endObject();
assertEquals("{\"string\":\"a string\"," +
"\"number\":37," +
"\"true\":true," +
"\"false\":false," +
"\"null\":null," +
"\"object\":{\"nested-array\":[1]}," +
"\"array\":[\"item1\",\"item2\",{\"nested\":\"item3\"}]}",
out.toString());
}
@Test
public void testJSONWriterEmptyObject() throws IOException {
OutputStream out = new ByteArrayOutputStream();
JSONWriter w = new JSONWriter(out);
w.beginObject();
w.endObject();
assertEquals("{}",out.toString());
}
@Test
public void testJSONWriterEmptyArray() throws IOException {
OutputStream out = new ByteArrayOutputStream();
JSONWriter w = new JSONWriter(out);
w.beginArray();
w.endArray();
assertEquals("[]",out.toString());
}
@Test
public void testJSONWriterStringOnly() throws IOException {
OutputStream out = new ByteArrayOutputStream();
JSONWriter w = new JSONWriter(out);
w.value("Hello, world!");
assertEquals("\"Hello, world!\"",out.toString());
}
@Test
public void testJSONWriterNestedArrays() throws IOException {
OutputStream out = new ByteArrayOutputStream();
JSONWriter w = new JSONWriter(out);
w.beginArray();
w.beginArrayValue().beginArray();
w.endArray().endArrayValue();
w.beginArrayValue().beginArray();
w.beginArrayValue().value("hello").endArrayValue();
w.beginArrayValue().value("world").endArrayValue();
w.endArray().endArrayValue();
w.beginArrayValue().beginArray();
w.endArray().endArrayValue();
w.beginArrayValue().beginArray();
w.beginArrayValue().beginArray();
w.endArray().endArrayValue();
w.endArray().endArrayValue();
w.beginArrayValue().beginArray();
w.endArray().endArrayValue();
w.endArray();
assertEquals("[[],[\"hello\",\"world\"],[],[[]],[]]",out.toString());
}
}
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