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package junit.tests.framework;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
public class DoublePrecisionAssertTest extends TestCase {
/**
* Test for the special Double.NaN value.
*/
public void testAssertEqualsNaNFails() {
try {
assertEquals(1.234, Double.NaN, 0.0);
} catch (AssertionFailedError e) {
return;
}
fail();
}
public void testAssertNaNEqualsFails() {
try {
assertEquals(Double.NaN, 1.234, 0.0);
} catch (AssertionFailedError e) {
return;
}
fail();
}
public void testAssertNaNEqualsNaNFails() {
try {
assertEquals(Double.NaN, Double.NaN, 0.0);
} catch (AssertionFailedError e) {
return;
}
fail();
}
public void testAssertPosInfinityNotEqualsNegInfinity() {
try {
assertEquals(Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY, 0.0);
} catch (AssertionFailedError e) {
return;
}
fail();
}
public void testAssertPosInfinityNotEquals() {
try {
assertEquals(Double.POSITIVE_INFINITY, 1.23, 0.0);
} catch (AssertionFailedError e) {
return;
}
fail();
}
public void testAssertPosInfinityEqualsInfinity() {
assertEquals(Double.POSITIVE_INFINITY, Double.POSITIVE_INFINITY, 0.0);
}
public void testAssertNegInfinityEqualsInfinity() {
assertEquals(Double.NEGATIVE_INFINITY, Double.NEGATIVE_INFINITY, 0.0);
}
}