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Copy pathTestJSONWriter.java
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530 lines (486 loc) · 13 KB
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/*
* File: TestJSONWriter.java Author: JSON.org
*/
package org.json.tests;
import java.io.IOException;
import java.io.Writer;
import org.json.JSONException;
import org.json.JSONStringer;
import org.json.JSONWriter;
import junit.framework.TestCase;
/**
* The Class TestJSONWriter.
*/
public class TestJSONWriter extends TestCase
{
/** The jsonwriter. */
JSONWriter jsonwriter;
/**
* The Class BadWriterThrowsOnNonBrace.
*/
class BadWriterThrowsOnNonBrace extends Writer
{
/*
* (non-Javadoc)
*
* @see java.io.Writer#write(char[], int, int)
*/
@Override
public void write(char[] cbuf, int off, int len) throws IOException
{
if (cbuf[0] != '{')
throw new IOException("Test Message From Non-Brace");
}
/*
* (non-Javadoc)
*
* @see java.io.Writer#flush()
*/
@Override
public void flush() throws IOException
{
//Do Nothing
}
/*
* (non-Javadoc)
*
* @see java.io.Writer#close()
*/
@Override
public void close() throws IOException
{
//Do Nothing
}
}
/**
* The Class BadWriterThrowsOnLeftBrace.
*/
class BadWriterThrowsOnLeftBrace extends Writer
{
/*
* (non-Javadoc)
*
* @see java.io.Writer#write(char[], int, int)
*/
@Override
public void write(char[] cbuf, int off, int len) throws IOException
{
if (cbuf[0] == '{')
throw new IOException("Test Message From Left Brace");
}
/*
* (non-Javadoc)
*
* @see java.io.Writer#flush()
*/
@Override
public void flush() throws IOException
{
//Do Nothing
}
/*
* (non-Javadoc)
*
* @see java.io.Writer#close()
*/
@Override
public void close() throws IOException
{
//Do Nothing
}
}
/**
* The Class BadWriterThrowsOnRightBrace.
*/
class BadWriterThrowsOnRightBrace extends Writer
{
/*
* (non-Javadoc)
*
* @see java.io.Writer#write(char[], int, int)
*/
@Override
public void write(char[] cbuf, int off, int len) throws IOException
{
if (cbuf[0] == '}')
throw new IOException("Test Message From Right Brace");
}
/*
* (non-Javadoc)
*
* @see java.io.Writer#flush()
*/
@Override
public void flush() throws IOException
{
//Do Nothing
}
/*
* (non-Javadoc)
*
* @see java.io.Writer#close()
*/
@Override
public void close() throws IOException
{
//Do Nothing
}
}
/**
* The Class BadExtensionThatCausesNestingError.
*/
class BadExtensionThatCausesNestingError extends JSONStringer
{
/**
* Change mode.
*
* @param c the c
* @return the jSON writer
*/
public JSONWriter changeMode(char c)
{
mode = c;
return this;
}
}
/**
* Tests the key method.
*/
public void testKey()
{
try
{
jsonwriter = new JSONStringer();
String result = jsonwriter.object().key("abc").value("123")
.key("abc2").value(60).key("abc3").value(20.98).key("abc4")
.value(true).endObject().toString();
assertEquals(
"{\"abc\":\"123\",\"abc2\":60,\"abc3\":20.98,\"abc4\":true}",
result);
} catch (JSONException e)
{
fail(e.getMessage());
}
}
/**
* Tests the value method.
*/
public void testValue()
{
try
{
jsonwriter = new JSONStringer();
String result = jsonwriter.array().value("123").value(10)
.value(30.45).value(false).endArray().toString();
assertEquals("[\"123\",10,30.45,false]", result);
} catch (JSONException e)
{
fail(e.getMessage());
}
}
/**
* Tests the object method using stops at max depth.
*/
public void testObject_StopsAtMaxDepth()
{
try
{
jsonwriter = new JSONStringer();
int i = 0;
while (i < 201)
{
jsonwriter.object().key("123");
i++;
}
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Nesting too deep.", e.getMessage());
}
}
/**
* Tests the array method using stops at max depth.
*/
public void testArray_StopsAtMaxDepth()
{
try
{
jsonwriter = new JSONStringer();
int i = 0;
while (i < 201)
{
jsonwriter.array();
i++;
}
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Nesting too deep.", e.getMessage());
}
}
/**
* Tests the value method using out of sequence.
*/
public void testValue_OutOfSequence()
{
try
{
jsonwriter = new JSONStringer();
jsonwriter.value(true);
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Value out of sequence.", e.getMessage());
}
}
/**
* Tests the object method using out of sequence.
*/
public void testObject_OutOfSequence()
{
try
{
jsonwriter = new JSONStringer();
jsonwriter.object().object();
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Misplaced object.", e.getMessage());
}
}
/**
* Tests the object method using two objects within array.
*/
public void testObject_TwoObjectsWithinArray()
{
try
{
jsonwriter = new JSONStringer();
String result = jsonwriter.array().object().endObject().object()
.endObject().endArray().toString();
assertEquals("[{},{}]", result);
} catch (JSONException e)
{
fail(e.getMessage());
}
}
/**
* Tests the object method using two strings and an int within object.
*/
public void testObject_TwoStringsAndAnIntWithinObject()
{
try
{
jsonwriter = new JSONStringer();
String result = jsonwriter.object().key("string1").value("abc")
.key("int").value(35).key("string2").value("123")
.endObject().toString();
assertEquals(
"{\"string1\":\"abc\",\"int\":35,\"string2\":\"123\"}",
result);
} catch (JSONException e)
{
fail(e.getMessage());
}
}
/**
* Tests the key method using misplaced key.
*/
public void testKey_MisplacedKey()
{
try
{
jsonwriter = new JSONStringer();
jsonwriter.key("123");
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Misplaced key.", e.getMessage());
}
}
/**
* Tests the key method using catches ioexception.
*/
public void testKey_CatchesIoexception()
{
try
{
jsonwriter = new JSONWriter(new BadWriterThrowsOnNonBrace());
jsonwriter.object().key("123");
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Test Message From Non-Brace", e.getMessage());
}
}
/**
* Tests the object method using catches ioexception.
*/
public void testObject_CatchesIoexception()
{
try
{
jsonwriter = new JSONWriter(new BadWriterThrowsOnLeftBrace());
jsonwriter.object();
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Test Message From Left Brace", e.getMessage());
}
}
/**
* Tests the key method using null key.
*/
public void testKey_NullKey()
{
try
{
jsonwriter = new JSONStringer();
jsonwriter.key(null);
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Null key.", e.getMessage());
}
}
/**
* Tests the array method using two arrays within object.
*/
public void testArray_TwoArraysWithinObject()
{
try
{
jsonwriter = new JSONStringer();
String result = jsonwriter.object().key("123").array().endArray()
.key("1234").array().endArray().endObject().toString();
assertEquals("{\"123\":[],\"1234\":[]}", result);
} catch (JSONException e)
{
fail(e.getMessage());
}
}
/**
* Tests the object method using two objects within object.
*/
public void testObject_TwoObjectsWithinObject()
{
try
{
jsonwriter = new JSONStringer();
String result = jsonwriter.object().key("123").object().endObject()
.key("1234").object().endObject().endObject().toString();
assertEquals("{\"123\":{},\"1234\":{}}", result);
} catch (JSONException e)
{
fail(e.getMessage());
}
}
/**
* Tests the array method using two arrays within array.
*/
public void testArray_TwoArraysWithinArray()
{
try
{
jsonwriter = new JSONStringer();
String result = jsonwriter.array().array().endArray().array()
.endArray().endArray().toString();
assertEquals("[[],[]]", result);
} catch (JSONException e)
{
fail(e.getMessage());
}
}
/**
* Tests the array method using misplaced array.
*/
public void testArray_MisplacedArray()
{
try
{
jsonwriter = new JSONStringer();
jsonwriter.object().array();
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Misplaced array.", e.getMessage());
}
}
/**
* Tests the endArray method using misplaced end array.
*/
public void testEndArray_MisplacedEndArray()
{
try
{
jsonwriter = new JSONStringer();
jsonwriter.endArray();
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Misplaced endArray.", e.getMessage());
}
}
/**
* Tests the endObject method using misplaced end object.
*/
public void testEndObject_MisplacedEndObject()
{
try
{
jsonwriter = new JSONStringer();
jsonwriter.endObject();
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Misplaced endObject.", e.getMessage());
}
}
/**
* Tests the endObject method using catches ioexception.
*/
public void testEndObject_CatchesIoexception()
{
try
{
jsonwriter = new JSONWriter(new BadWriterThrowsOnRightBrace());
jsonwriter.object().endObject();
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Test Message From Right Brace", e.getMessage());
}
}
/**
* Tests the pop method using bad extension that causes nesting error1.
*/
public void testPop_BadExtensionThatCausesNestingError1()
{
try
{
BadExtensionThatCausesNestingError betcnw = new BadExtensionThatCausesNestingError();
betcnw.object().endObject();
betcnw.changeMode('k').endObject();
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Nesting error.", e.getMessage());
}
}
/**
* Tests the pop method using bad extension that causes nesting error2.
*/
public void testPop_BadExtensionThatCausesNestingError2()
{
try
{
BadExtensionThatCausesNestingError betcnw = new BadExtensionThatCausesNestingError();
betcnw.array();
betcnw.changeMode('k').endObject();
fail("Should have thrown exception.");
} catch (JSONException e)
{
assertEquals("Nesting error.", e.getMessage());
}
}
}