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Assert.java
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Assert.java
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package junit.framework;
/**
* A set of assert methods.
*/
public class Assert {
/**
* Protect constructor since it is a static only class
*/
protected Assert() {
}
/**
* Asserts that a condition is true. If it isn't it throws
* an AssertionFailedError with the given message.
* @deprecated use assertTrue
*/
static public void assert(String message, boolean condition) {
if (!condition)
fail(message);
}
/**
* Asserts that a condition is true. If it isn't it throws
* an AssertionFailedError.
* @deprecated use assertTrue
*
*/
static public void assert(boolean condition) {
assert(null, condition);
}
/**
* Asserts that a condition is true. If it isn't it throws
* an AssertionFailedError with the given message.
*/
static public void assertTrue(String message, boolean condition) {
if (!condition)
fail(message);
}
/**
* Asserts that a condition is true. If it isn't it throws
* an AssertionFailedError.
*/
static public void assertTrue(boolean condition) {
assertTrue(null, condition);
}
/**
* Fails a test with the given message.
*/
static public void fail(String message) {
throw new AssertionFailedError(message);
}
/**
* Fails a test with no message.
*/
static public void fail() {
fail(null);
}
/**
* Asserts that two objects are equal. If they are not
* an AssertionFailedError is thrown.
*/
static public void assertEquals(String message, Object expected, Object actual) {
if (expected == null && actual == null)
return;
if (expected != null && expected.equals(actual))
return;
failNotEquals(message, expected, actual);
}
/**
* Asserts that two objects are equal. If they are not
* an AssertionFailedError is thrown.
*/
static public void assertEquals(Object expected, Object actual) {
assertEquals(null, expected, actual);
}
/**
* Asserts that two doubles are equal concerning a delta. If the expected
* value is infinity then the delta value is ignored.
*/
static public void assertEquals(String message, double expected, double actual, double delta) {
// handle infinity specially since subtracting to infinite values gives NaN and the
// the following test fails
if (Double.isInfinite(expected)) {
if (!(expected == actual))
failNotEquals(message, new Double(expected), new Double(actual));
} else if (!(Math.abs(expected-actual) <= delta)) // Because comparison with NaN always returns false
failNotEquals(message, new Double(expected), new Double(actual));
}
/**
* Asserts that two doubles are equal concerning a delta. If the expected
* value is infinity then the delta value is ignored.
*/
static public void assertEquals(double expected, double actual, double delta) {
assertEquals(null, expected, actual, delta);
}
/**
* Asserts that two floats are equal concerning a delta. If the expected
* value is infinity then the delta value is ignored.
*/
static public void assertEquals(String message, float expected, float actual, float delta) {
// handle infinity specially since subtracting to infinite values gives NaN and the
// the following test fails
if (Float.isInfinite(expected)) {
if (!(expected == actual))
failNotEquals(message, new Float(expected), new Float(actual));
} else if (!(Math.abs(expected-actual) <= delta))
failNotEquals(message, new Float(expected), new Float(actual));
}
/**
* Asserts that two floats are equal concerning a delta. If the expected
* value is infinity then the delta value is ignored.
*/
static public void assertEquals(float expected, float actual, float delta) {
assertEquals(null, expected, actual, delta);
}
/**
* Asserts that two longs are equal.
*/
static public void assertEquals(String message, long expected, long actual) {
assertEquals(message, new Long(expected), new Long(actual));
}
/**
* Asserts that two longs are equal.
*/
static public void assertEquals(long expected, long actual) {
assertEquals(null, expected, actual);
}
/**
* Asserts that two booleans are equal.
*/
static public void assertEquals(String message, boolean expected, boolean actual) {
assertEquals(message, new Boolean(expected), new Boolean(actual));
}
/**
* Asserts that two booleans are equal.
*/
static public void assertEquals(boolean expected, boolean actual) {
assertEquals(null, expected, actual);
}
/**
* Asserts that two bytes are equal.
*/
static public void assertEquals(String message, byte expected, byte actual) {
assertEquals(message, new Byte(expected), new Byte(actual));
}
/**
* Asserts that two bytes are equal.
*/
static public void assertEquals(byte expected, byte actual) {
assertEquals(null, expected, actual);
}
/**
* Asserts that two chars are equal.
*/
static public void assertEquals(String message, char expected, char actual) {
assertEquals(message, new Character(expected), new Character(actual));
}
/**
* Asserts that two chars are equal.
*/
static public void assertEquals(char expected, char actual) {
assertEquals(null, expected, actual);
}
/**
* Asserts that two shorts are equal.
*/
static public void assertEquals(String message, short expected, short actual) {
assertEquals(message, new Short(expected), new Short(actual));
}
/**
* Asserts that two shorts are equal.
*/
static public void assertEquals(short expected, short actual) {
assertEquals(null, expected, actual);
}
/**
* Asserts that two ints are equal.
*/
static public void assertEquals(String message, int expected, int actual) {
assertEquals(message, new Integer(expected), new Integer(actual));
}
/**
* Asserts that two ints are equal.
*/
static public void assertEquals(int expected, int actual) {
assertEquals(null, expected, actual);
}
/**
* Asserts that an object isn't null.
*/
static public void assertNotNull(Object object) {
assertNotNull(null, object);
}
/**
* Asserts that an object isn't null.
*/
static public void assertNotNull(String message, Object object) {
assertTrue(message, object != null);
}
/**
* Asserts that an object is null.
*/
static public void assertNull(Object object) {
assertNull(null, object);
}
/**
* Asserts that an object is null.
*/
static public void assertNull(String message, Object object) {
assertTrue(message, object == null);
}
/**
* Asserts that two objects refer to the same object. If they are not
* an AssertionFailedError is thrown.
*/
static public void assertSame(String message, Object expected, Object actual) {
if (expected == actual)
return;
failNotSame(message, expected, actual);
}
/**
* Asserts that two objects refer to the same object. If they are not
* the same an AssertionFailedError is thrown.
*/
static public void assertSame(Object expected, Object actual) {
assertSame(null, expected, actual);
}
static private void failNotEquals(String message, Object expected, Object actual) {
String formatted= "";
if (message != null)
formatted= message+" ";
fail(formatted+"expected:<"+expected+"> but was:<"+actual+">");
}
static private void failNotSame(String message, Object expected, Object actual) {
String formatted= "";
if (message != null)
formatted= message+" ";
fail(formatted+"expected same");
}
}