[ctf] Simplify the logic of the unsigned long comparator.

[deliverable/tracecompass.git] / org.eclipse.linuxtools.ctf.core.tests / src / org / eclipse / linuxtools / ctf / core / tests / trace / UtilsTest.java

diff --git a/org.eclipse.linuxtools.ctf.core.tests/src/org/eclipse/linuxtools/ctf/core/tests/trace/UtilsTest.java b/org.eclipse.linuxtools.ctf.core.tests/src/org/eclipse/linuxtools/ctf/core/tests/trace/UtilsTest.java
index c2cbecc4840ca697d7dc5d18d5aff9bba1dd1404..b3fbfdf47807be303dd0b04170d8515bded60637 100644 (file)
--- a/org.eclipse.linuxtools.ctf.core.tests/src/org/eclipse/linuxtools/ctf/core/tests/trace/UtilsTest.java
+++ b/org.eclipse.linuxtools.ctf.core.tests/src/org/eclipse/linuxtools/ctf/core/tests/trace/UtilsTest.java
@@ -88,8 +88,31 @@ public class UtilsTest {
     public void testUnsignedCompare() {
         long a = 1L;
         long b = 1L;
+        int result;
 
-        int result = Utils.unsignedCompare(a, b);
+        result = Utils.unsignedCompare(a, b);
         assertEquals(0, result);
+
+        result = Utils.unsignedCompare(0L, 1L);
+        assertEquals(-1, result);
+        result = Utils.unsignedCompare(0xFFFFFFFFL, 0x100000000L);
+        assertEquals(-1, result);
+        result = Utils.unsignedCompare(-4L, -1L);
+        assertEquals(-1, result);
+        result = Utils.unsignedCompare(-0x80000000L, -1L);
+        assertEquals(-1, result);
+        result = Utils.unsignedCompare(0x7FFFFFFFFFFFFFFEL, 0x7FFFFFFFFFFFFFFFL);
+        assertEquals(-1, result);
+
+        result = Utils.unsignedCompare(1L, 0L);
+        assertEquals(1, result);
+        result = Utils.unsignedCompare(0x100000000L, 0xFFFFFFFFL);
+        assertEquals(1, result);
+        result = Utils.unsignedCompare(-1L, -4L);
+        assertEquals(1, result);
+        result = Utils.unsignedCompare(-1L, -0x80000000L);
+        assertEquals(1, result);
+        result = Utils.unsignedCompare(0x7FFFFFFFFFFFFFFFL, 0x7FFFFFFFFFFFFFFEL);
+        assertEquals(1, result);
     }
 }
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