1 files changed, 59 insertions, 0 deletions
diff --git a/org.eclipse.mylyn.tasks.ui.tests/src/org/eclipse/mylyn/internal/tasks/ui/util/TaskComparatorTest.java b/org.eclipse.mylyn.tasks.ui.tests/src/org/eclipse/mylyn/internal/tasks/ui/util/TaskComparatorTest.java
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index 000000000..eaa65c5a0
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+++ b/org.eclipse.mylyn.tasks.ui.tests/src/org/eclipse/mylyn/internal/tasks/ui/util/TaskComparatorTest.java
@@ -0,0 +1,59 @@
+/*******************************************************************************
+ * Copyright (c) 2016 Tasktop Technologies and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Tasktop Technologies - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.mylyn.internal.tasks.ui.util;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import org.eclipse.mylyn.internal.tasks.core.TaskTask;
+import org.eclipse.mylyn.tasks.core.ITask;
+import org.eclipse.mylyn.tasks.core.data.TaskAttribute;
+import org.junit.Test;
+
+public class TaskComparatorTest {
+
+	@Test
+	public void compareRank() {
+		assertCompare(taskWithRank("5"), taskWithRank("7"));
+		assertCompare(taskWithRank("5"), taskWithRank("17"));
+		assertCompare(taskWithRank("5"), taskWithRank("17.1"));
+		assertCompare(taskWithRank("5.3"), taskWithRank("17.1"));
+		assertCompare(taskWithRank("#$d"), taskWithRank("#$e"));
+		assertCompare(taskWithRank("gjp"), taskWithRank("gkp"));
+		assertCompare(taskWithRank("A"), taskWithRank("a"));
+		assertCompare(taskWithRank("dsfhgSd"), taskWithRank("dsfhgsd"));
+		assertCompare(taskWithRank("dsfhgS"), taskWithRank("dsfhgsd"));
+		assertCompare(taskWithRank("dsfhgs"), taskWithRank("dsfhgsd"));
+
+		assertEquals(0, compare(taskWithRank("5"), taskWithRank("5")));
+		assertEquals(0, compare(taskWithRank("17.1"), taskWithRank("17.1")));
+		assertEquals(0, compare(taskWithRank("dsfhgs"), taskWithRank("dsfhgs")));
+		assertEquals(0, compare(taskWithRank("ds#fHgs"), taskWithRank("ds#fHgs")));
+	}
+
+	private void assertCompare(ITask task1, ITask task2) {
+		assertTrue(compare(task1, task2) < 0);
+		assertTrue(compare(task2, task1) > 0);
+	}
+
+	private int compare(ITask task1, ITask task2) {
+		return new TaskComparator().compare(task1, task2);
+	}
+
+	private ITask taskWithRank(String rank) {
+		@SuppressWarnings("restriction")
+		ITask task = new TaskTask("kind", "http://mock", "1");
+		task.setPriority("");
+		task.setAttribute(TaskAttribute.RANK, rank);
+		return task;
+	}
+}