1 files changed, 55 insertions, 0 deletions
diff --git a/junit4/src/test/java/junit/tests/framework/DoublePrecisionAssertTest.java b/junit4/src/test/java/junit/tests/framework/DoublePrecisionAssertTest.java
new file mode 100644
index 0000000..9df3560
--- /dev/null
+++ b/junit4/src/test/java/junit/tests/framework/DoublePrecisionAssertTest.java
@@ -0,0 +1,55 @@
+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);
+			fail();
+		} catch (AssertionFailedError e) {
+		}
+	}
+
+	public void testAssertNaNEqualsFails() {
+		try {
+			assertEquals(Double.NaN, 1.234, 0.0);
+			fail();
+		} catch (AssertionFailedError e) {
+		}
+	}
+
+	public void testAssertNaNEqualsNaN() {
+		assertEquals(Double.NaN, Double.NaN, 0.0);
+	}
+
+	public void testAssertPosInfinityNotEqualsNegInfinity() {
+		try {
+			assertEquals(Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY, 0.0);
+			fail();
+		} catch (AssertionFailedError e) {
+		}
+	}
+
+	public void testAssertPosInfinityNotEquals() {
+		try {
+			assertEquals(Double.POSITIVE_INFINITY, 1.23, 0.0);
+			fail();
+		} catch (AssertionFailedError e) {
+		}
+	}
+
+	public void testAssertPosInfinityEqualsInfinity() {
+		assertEquals(Double.POSITIVE_INFINITY, Double.POSITIVE_INFINITY, 0.0);
+	}
+
+	public void testAssertNegInfinityEqualsInfinity() {
+		assertEquals(Double.NEGATIVE_INFINITY, Double.NEGATIVE_INFINITY, 0.0);
+	}
+
+}