Commons Beanutils example source code file (ConvertUtilsTestCase.java)
The Commons Beanutils ConvertUtilsTestCase.java source code/*
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* this work for additional information regarding copyright ownership.
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* (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,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.beanutils;
import java.sql.Date;
import java.sql.Time;
import java.sql.Timestamp;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Locale;
import org.apache.commons.beanutils.converters.DateConverter;
import junit.framework.TestCase;
import junit.framework.Test;
import junit.framework.TestSuite;
/**
* <p>
* Test Case for the ConvertUtils class.
* </p>
*
* @author Craig R. McClanahan
* @version $Revision: 551047 $ $Date: 2007-06-27 06:34:15 +0100 (Wed, 27 Jun 2007) $
*/
public class ConvertUtilsTestCase extends TestCase {
// ---------------------------------------------------- Instance Variables
// ---------------------------------------------------------- Constructors
/**
* Construct a new instance of this test case.
*
* @param name Name of the test case
*/
public ConvertUtilsTestCase(String name) {
super(name);
}
// -------------------------------------------------- Overall Test Methods
/**
* Set up instance variables required by this test case.
*/
public void setUp() {
ConvertUtils.deregister();
}
/**
* Return the tests included in this test suite.
*/
public static Test suite() {
return (new TestSuite(ConvertUtilsTestCase.class));
}
/**
* Tear down instance variables required by this test case.
*/
public void tearDown() {
// No action required
}
// ------------------------------------------------ Individual Test Methods
/**
* Negative String to primitive integer array tests.
*/
public void testNegativeIntegerArray() {
Object value = null;
int intArray[] = new int[0];
value = ConvertUtils.convert((String) null, intArray.getClass());
checkIntegerArray(value, intArray);
value = ConvertUtils.convert("a", intArray.getClass());
checkIntegerArray(value, intArray);
value = ConvertUtils.convert("{ a }", intArray.getClass());
checkIntegerArray(value, intArray);
value = ConvertUtils.convert("1a3", intArray.getClass());
checkIntegerArray(value, intArray);
value = ConvertUtils.convert("{ 1a3 }", intArray.getClass());
checkIntegerArray(value, intArray);
value = ConvertUtils.convert("0,1a3", intArray.getClass());
checkIntegerArray(value, intArray);
value = ConvertUtils.convert("{ 0, 1a3 }", intArray.getClass());
checkIntegerArray(value, intArray);
}
/**
* Negative scalar conversion tests. These rely on the standard
* default value conversions in ConvertUtils.
*/
public void testNegativeScalar() {
Object value = null;
value = ConvertUtils.convert("foo", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), false);
value = ConvertUtils.convert("foo", Boolean.class);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), false);
value = ConvertUtils.convert("foo", Byte.TYPE);
assertTrue(value instanceof Byte);
assertEquals(((Byte) value).byteValue(), (byte) 0);
value = ConvertUtils.convert("foo", Byte.class);
assertTrue(value instanceof Byte);
assertEquals(((Byte) value).byteValue(), (byte) 0);
try {
value = ConvertUtils.convert
("org.apache.commons.beanutils.Undefined", Class.class);
fail("Should have thrown conversion exception");
} catch (ConversionException e) {
// Expected result
}
value = ConvertUtils.convert("foo", Double.TYPE);
assertTrue(value instanceof Double);
assertEquals(((Double) value).doubleValue(), 0.0,
0.005);
value = ConvertUtils.convert("foo", Double.class);
assertTrue(value instanceof Double);
assertEquals(((Double) value).doubleValue(), 0.0, 0.005);
value = ConvertUtils.convert("foo", Float.TYPE);
assertTrue(value instanceof Float);
assertEquals(((Float) value).floatValue(), (float) 0.0,
(float) 0.005);
value = ConvertUtils.convert("foo", Float.class);
assertTrue(value instanceof Float);
assertEquals(((Float) value).floatValue(), (float) 0.0,
(float) 0.005);
value = ConvertUtils.convert("foo", Integer.TYPE);
assertTrue(value instanceof Integer);
assertEquals(((Integer) value).intValue(), 0);
value = ConvertUtils.convert("foo", Integer.class);
assertTrue(value instanceof Integer);
assertEquals(((Integer) value).intValue(), 0);
value = ConvertUtils.convert("foo", Byte.TYPE);
assertTrue(value instanceof Byte);
assertEquals(((Byte) value).byteValue(), (byte) 0);
value = ConvertUtils.convert("foo", Long.class);
assertTrue(value instanceof Long);
assertEquals(((Long) value).longValue(), 0);
value = ConvertUtils.convert("foo", Short.TYPE);
assertTrue(value instanceof Short);
assertEquals(((Short) value).shortValue(), (short) 0);
value = ConvertUtils.convert("foo", Short.class);
assertTrue(value instanceof Short);
assertEquals(((Short) value).shortValue(), (short) 0);
}
/**
* Negative String to String array tests.
*/
public void testNegativeStringArray() {
Object value = null;
String stringArray[] = new String[0];
value = ConvertUtils.convert((String) null, stringArray.getClass());
checkStringArray(value, stringArray);
}
/**
* Test conversion of object to string for arrays.
*/
public void testObjectToStringArray() {
int intArray0[] = new int[0];
int intArray1[] = { 123 };
int intArray2[] = { 123, 456 };
String stringArray0[] = new String[0];
String stringArray1[] = { "abc" };
String stringArray2[] = { "abc", "def" };
assertEquals("intArray0", null,
ConvertUtils.convert(intArray0));
assertEquals("intArray1", "123",
ConvertUtils.convert(intArray1));
assertEquals("intArray2", "123",
ConvertUtils.convert(intArray2));
assertEquals("stringArray0", null,
ConvertUtils.convert(stringArray0));
assertEquals("stringArray1", "abc",
ConvertUtils.convert(stringArray1));
assertEquals("stringArray2", "abc",
ConvertUtils.convert(stringArray2));
}
/**
* Test conversion of object to string for scalars.
*/
public void testObjectToStringScalar() {
assertEquals("Boolean->String", "false",
ConvertUtils.convert(Boolean.FALSE));
assertEquals("Boolean->String", "true",
ConvertUtils.convert(Boolean.TRUE));
assertEquals("Byte->String", "123",
ConvertUtils.convert(new Byte((byte) 123)));
assertEquals("Character->String", "a",
ConvertUtils.convert(new Character('a')));
assertEquals("Double->String", "123.0",
ConvertUtils.convert(new Double(123.0)));
assertEquals("Float->String", "123.0",
ConvertUtils.convert(new Float((float) 123.0)));
assertEquals("Integer->String", "123",
ConvertUtils.convert(new Integer(123)));
assertEquals("Long->String", "123",
ConvertUtils.convert(new Long(123)));
assertEquals("Short->String", "123",
ConvertUtils.convert(new Short((short) 123)));
assertEquals("String->String", "abc",
ConvertUtils.convert("abc"));
assertEquals("String->String null", null,
ConvertUtils.convert(null));
}
/**
* Positive array conversion tests.
*/
public void testPositiveArray() {
String values1[] = { "10", "20", "30" };
Object value = ConvertUtils.convert(values1, Integer.TYPE);
int shape[] = new int[0];
assertEquals(shape.getClass(), value.getClass());
int results1[] = (int[]) value;
assertEquals(results1[0], 10);
assertEquals(results1[1], 20);
assertEquals(results1[2], 30);
String values2[] = { "100", "200", "300" };
value = ConvertUtils.convert(values2, shape.getClass());
assertEquals(shape.getClass(), value.getClass());
int results2[] = (int[]) value;
assertEquals(results2[0], 100);
assertEquals(results2[1], 200);
assertEquals(results2[2], 300);
}
/**
* Positive String to primitive integer array tests.
*/
public void testPositiveIntegerArray() {
Object value = null;
int intArray[] = new int[0];
int intArray1[] = new int[] { 0 };
int intArray2[] = new int[] { 0, 10 };
value = ConvertUtils.convert("{ }", intArray.getClass());
checkIntegerArray(value, intArray);
value = ConvertUtils.convert("0", intArray.getClass());
checkIntegerArray(value, intArray1);
value = ConvertUtils.convert(" 0 ", intArray.getClass());
checkIntegerArray(value, intArray1);
value = ConvertUtils.convert("{ 0 }", intArray.getClass());
checkIntegerArray(value, intArray1);
value = ConvertUtils.convert("0,10", intArray.getClass());
checkIntegerArray(value, intArray2);
value = ConvertUtils.convert("0 10", intArray.getClass());
checkIntegerArray(value, intArray2);
value = ConvertUtils.convert("{0,10}", intArray.getClass());
checkIntegerArray(value, intArray2);
value = ConvertUtils.convert("{0 10}", intArray.getClass());
checkIntegerArray(value, intArray2);
value = ConvertUtils.convert("{ 0, 10 }", intArray.getClass());
checkIntegerArray(value, intArray2);
value = ConvertUtils.convert("{ 0 10 }", intArray.getClass());
checkIntegerArray(value, intArray2);
}
/**
* Positive scalar conversion tests.
*/
public void testPositiveScalar() {
Object value = null;
value = ConvertUtils.convert("true", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), true);
value = ConvertUtils.convert("true", Boolean.class);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), true);
value = ConvertUtils.convert("yes", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), true);
value = ConvertUtils.convert("yes", Boolean.class);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), true);
value = ConvertUtils.convert("y", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), true);
value = ConvertUtils.convert("y", Boolean.class);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), true);
value = ConvertUtils.convert("on", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), true);
value = ConvertUtils.convert("on", Boolean.class);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), true);
value = ConvertUtils.convert("false", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), false);
value = ConvertUtils.convert("false", Boolean.class);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), false);
value = ConvertUtils.convert("no", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), false);
value = ConvertUtils.convert("no", Boolean.class);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), false);
value = ConvertUtils.convert("n", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), false);
value = ConvertUtils.convert("n", Boolean.class);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), false);
value = ConvertUtils.convert("off", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), false);
value = ConvertUtils.convert("off", Boolean.class);
assertTrue(value instanceof Boolean);
assertEquals(((Boolean) value).booleanValue(), false);
value = ConvertUtils.convert("123", Byte.TYPE);
assertTrue(value instanceof Byte);
assertEquals(((Byte) value).byteValue(), (byte) 123);
value = ConvertUtils.convert("123", Byte.class);
assertTrue(value instanceof Byte);
assertEquals(((Byte) value).byteValue(), (byte) 123);
value = ConvertUtils.convert("a", Character.TYPE);
assertTrue(value instanceof Character);
assertEquals(((Character) value).charValue(), 'a');
value = ConvertUtils.convert("a", Character.class);
assertTrue(value instanceof Character);
assertEquals(((Character) value).charValue(), 'a');
value = ConvertUtils.convert("java.lang.String", Class.class);
assertTrue(value instanceof Class);
assertEquals(String.class, value);
value = ConvertUtils.convert("123.456", Double.TYPE);
assertTrue(value instanceof Double);
assertEquals(((Double) value).doubleValue(), 123.456, 0.005);
value = ConvertUtils.convert("123.456", Double.class);
assertTrue(value instanceof Double);
assertEquals(((Double) value).doubleValue(), 123.456, 0.005);
value = ConvertUtils.convert("123.456", Float.TYPE);
assertTrue(value instanceof Float);
assertEquals(((Float) value).floatValue(), (float) 123.456,
(float) 0.005);
value = ConvertUtils.convert("123.456", Float.class);
assertTrue(value instanceof Float);
assertEquals(((Float) value).floatValue(), (float) 123.456,
(float) 0.005);
value = ConvertUtils.convert("123", Integer.TYPE);
assertTrue(value instanceof Integer);
assertEquals(((Integer) value).intValue(), 123);
value = ConvertUtils.convert("123", Integer.class);
assertTrue(value instanceof Integer);
assertEquals(((Integer) value).intValue(), 123);
value = ConvertUtils.convert("123", Long.TYPE);
assertTrue(value instanceof Long);
assertEquals(((Long) value).longValue(), 123);
value = ConvertUtils.convert("123", Long.class);
assertTrue(value instanceof Long);
assertEquals(((Long) value).longValue(), 123);
value = ConvertUtils.convert("123", Short.TYPE);
assertTrue(value instanceof Short);
assertEquals(((Short) value).shortValue(), (short) 123);
value = ConvertUtils.convert("123", Short.class);
assertTrue(value instanceof Short);
assertEquals(((Short) value).shortValue(), (short) 123);
String input = null;
input = "2002-03-17";
value = ConvertUtils.convert(input, Date.class);
assertTrue(value instanceof Date);
assertEquals(input, value.toString());
input = "20:30:40";
value = ConvertUtils.convert(input, Time.class);
assertTrue(value instanceof Time);
assertEquals(input, value.toString());
input = "2002-03-17 20:30:40.0";
value = ConvertUtils.convert(input, Timestamp.class);
assertTrue(value instanceof Timestamp);
assertEquals(input, value.toString());
}
/**
* Positive String to String array tests.
*/
public void testPositiveStringArray() {
Object value = null;
String stringArray[] = new String[0];
String stringArray1[] = new String[]
{ "abc" };
String stringArray2[] = new String[]
{ "abc", "de,f" };
value = ConvertUtils.convert("", stringArray.getClass());
checkStringArray(value, stringArray);
value = ConvertUtils.convert(" ", stringArray.getClass());
checkStringArray(value, stringArray);
value = ConvertUtils.convert("{}", stringArray.getClass());
checkStringArray(value, stringArray);
value = ConvertUtils.convert("{ }", stringArray.getClass());
checkStringArray(value, stringArray);
value = ConvertUtils.convert("abc", stringArray.getClass());
checkStringArray(value, stringArray1);
value = ConvertUtils.convert("{abc}", stringArray.getClass());
checkStringArray(value, stringArray1);
value = ConvertUtils.convert("\"abc\"", stringArray.getClass());
checkStringArray(value, stringArray1);
value = ConvertUtils.convert("{\"abc\"}", stringArray.getClass());
checkStringArray(value, stringArray1);
value = ConvertUtils.convert("'abc'", stringArray.getClass());
checkStringArray(value, stringArray1);
value = ConvertUtils.convert("{'abc'}", stringArray.getClass());
checkStringArray(value, stringArray1);
value = ConvertUtils.convert("abc 'de,f'",
stringArray.getClass());
checkStringArray(value, stringArray2);
value = ConvertUtils.convert("{abc, 'de,f'}",
stringArray.getClass());
checkStringArray(value, stringArray2);
value = ConvertUtils.convert("\"abc\",\"de,f\"",
stringArray.getClass());
checkStringArray(value, stringArray2);
value = ConvertUtils.convert("{\"abc\" 'de,f'}",
stringArray.getClass());
checkStringArray(value, stringArray2);
value = ConvertUtils.convert("'abc' 'de,f'",
stringArray.getClass());
checkStringArray(value, stringArray2);
value = ConvertUtils.convert("{'abc', \"de,f\"}",
stringArray.getClass());
checkStringArray(value, stringArray2);
}
public void testSeparateConvertInstances() throws Exception {
ConvertUtilsBean utilsOne = new ConvertUtilsBean();
ConvertUtilsBean utilsTwo = new ConvertUtilsBean();
// make sure that the test work ok before anything's changed
Object
value = utilsOne.convert("true", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(
"Standard conversion failed (1)",
((Boolean) value).booleanValue(),
true);
value = utilsTwo.convert("true", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(
"Standard conversion failed (2)",
((Boolean) value).booleanValue(),
true);
// now register a test
utilsOne.register(new ThrowExceptionConverter(), Boolean.TYPE);
try {
utilsOne.convert("true", Boolean.TYPE);
fail("Register converter failed.");
} catch (PassTestException e) { /* This shows that the registration has worked */ }
try {
// nothing should have changed
value = utilsTwo.convert("true", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(
"Standard conversion failed (3)",
((Boolean) value).booleanValue(),
true);
} catch (PassTestException e) {
// This is a failure since utilsTwo should still have
// standard converters registered
fail("Registering a converter for an instance should not effect another instance.");
}
// nothing we'll test deregister
utilsOne.deregister();
value = utilsOne.convert("true", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals("Instance deregister failed.", ((Boolean) value).booleanValue(), true);
value = utilsTwo.convert("true", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(
"Standard conversion failed (4)",
((Boolean) value).booleanValue(),
true);
}
public void testDeregisteringSingleConverter() throws Exception {
// make sure that the test work ok before anything's changed
Object
value = ConvertUtils.convert("true", Boolean.TYPE);
assertTrue(value instanceof Boolean);
assertEquals(
"Standard conversion failed (1)",
((Boolean) value).booleanValue(),
true);
// we'll test deregister
ConvertUtils.deregister(Boolean.TYPE);
assertNull("Converter should be null",ConvertUtils.lookup(Boolean.TYPE));
}
public void testConvertToString() throws Exception {
Converter dummyConverter = new Converter() {
public Object convert(Class type, Object value) {
return value;
}
};
Converter fooConverter = new Converter() {
public Object convert(Class type, Object value) {
return "Foo-Converter";
}
};
DateConverter dateConverter = new DateConverter();
dateConverter.setLocale(Locale.US);
ConvertUtilsBean utils = new ConvertUtilsBean();
utils.register(dateConverter, java.util.Date.class);
utils.register(fooConverter, String.class);
// Convert using registerd DateConverter
java.util.Date today = new java.util.Date();
DateFormat fmt = new SimpleDateFormat("M/d/yy"); /* US Short Format */
String expected = fmt.format(today);
assertEquals("DateConverter M/d/yy", expected, utils.convert(today, String.class));
// Date converter doesn't do String conversion - use String Converter
utils.register(dummyConverter, java.util.Date.class);
assertEquals("Date Converter doesn't do String conversion", "Foo-Converter", utils.convert(today, String.class));
// No registered Date converter - use String Converter
utils.deregister(java.util.Date.class);
assertEquals("No registered Date converter", "Foo-Converter", utils.convert(today, String.class));
// String Converter doesn't do Strings!!!
utils.register(dummyConverter, String.class);
assertEquals("String Converter doesn't do Strings!!!", today.toString(), utils.convert(today, String.class));
// No registered Date or String converter - use Object's toString()
utils.deregister(String.class);
assertEquals("Object's toString()", today.toString(), utils.convert(today, String.class));
}
// -------------------------------------------------------- Private Methods
private void checkIntegerArray(Object value, int intArray[]) {
assertNotNull("Returned value is not null", value);
assertEquals("Returned value is int[]",
intArray.getClass(), value.getClass());
int results[] = (int[]) value;
assertEquals("Returned array length", intArray.length, results.length);
for (int i = 0; i < intArray.length; i++) {
assertEquals("Returned array value " + i,
intArray[i], results[i]);
}
}
private void checkStringArray(Object value, String stringArray[]) {
assertNotNull("Returned value is not null", value);
assertEquals("Returned value is String[]",
stringArray.getClass(), value.getClass());
String results[] = (String[]) value;
assertEquals("Returned array length",
stringArray.length, results.length);
for (int i = 0; i < stringArray.length; i++) {
assertEquals("Returned array value " + i,
stringArray[i], results[i]);
}
}
}
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