Add test runner log when test case class is not loaded.

The test runner will only load TestCase classes that have a public
constructor with either no params or a single String parameter.

This is fairly subtle behavior and can be difficult to catch. This change
adds a log message when a TestCase class is not loaded, and adds some
associated unit tests.

Change-Id: I6fc63e4179c949620f5773e0ae134f99905a6fb2

1 files changed, 47 insertions, 0 deletions

diff --git a/test-runner/tests/src/android/test/suitebuilder/TestGroupingTest.java b/test-runner/tests/src/android/test/suitebuilder/TestGroupingTest.java
new file mode 100644
index 000000000000..f4477d1c780e
--- /dev/null
+++ b/test-runner/tests/src/android/test/suitebuilder/TestGroupingTest.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.test.suitebuilder;
+
+import java.util.List;
+
+import junit.framework.TestCase;
+
+/**
+ * Unit tests for {@link TestGrouping}
+ */
+public class TestGroupingTest extends TestCase {
+
+    private TestGrouping mGrouping;
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        mGrouping = new TestGrouping(TestGrouping.SORT_BY_SIMPLE_NAME);
+    }
+
+    /**
+     * Verifies that TestCases with no public constructor are not loaded.
+     * Relies on fixture classes in android.test.suitebuilder.examples.constructor
+     */
+    public void testGetTests_noPublicConstructor() {
+        mGrouping.addPackagesRecursive("android.test.suitebuilder.examples.constructor");
+        List<TestMethod> tests = mGrouping.getTests();
+        // only the PublicConstructorTest's test method should be present
+        assertEquals(1, tests.size());
+        assertEquals("testPublicConstructor", tests.get(0).getName());
+    }
+}