1 files changed, 95 insertions, 0 deletions
diff --git a/libraries/collectors-helper/simpleperf/test/src/com/android/helpers/tests/SimpleperfHelperTest.java b/libraries/collectors-helper/simpleperf/test/src/com/android/helpers/tests/SimpleperfHelperTest.java
new file mode 100644
index 000000000..7c2fdd7a5
--- /dev/null
+++ b/libraries/collectors-helper/simpleperf/test/src/com/android/helpers/tests/SimpleperfHelperTest.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2020 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 com.android.helpers.tests;
+
+import android.support.test.uiautomator.UiDevice;
+import androidx.test.InstrumentationRegistry;
+import androidx.test.runner.AndroidJUnit4;
+
+import com.android.helpers.SimpleperfHelper;
+
+import java.io.IOException;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Android Unit tests for {@link SimpleperfHelper}.
+ *
+ * <p>atest CollectorsHelperTest:com.android.helpers.tests.SimpleperfHelperTest
+ */
+@RunWith(AndroidJUnit4.class)
+public class SimpleperfHelperTest {
+
+    private static final String REMOVE_CMD = "rm %s";
+    private static final String FILE_SIZE_IN_BYTES = "wc -c %s";
+
+    private SimpleperfHelper simpleperfHelper;
+
+    @Before
+    public void setUp() {
+        simpleperfHelper = new SimpleperfHelper();
+    }
+
+    @After
+    public void teardown() throws IOException {
+        simpleperfHelper.stopCollecting("data/local/tmp/perf.data");
+        UiDevice uiDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation());
+        uiDevice.executeShellCommand(String.format(REMOVE_CMD, "/data/local/tmp/perf.data"));
+    }
+
+    /** Test simpleperf collection starts collecting properly. */
+    @Test
+    public void testSimpleperfStartSuccess() throws Exception {
+        assertTrue(simpleperfHelper.startCollecting());
+    }
+
+    /** Test if the path name is prefixed with /. */
+    @Test
+    public void testSimpleperfValidOutputPath() throws Exception {
+        assertTrue(simpleperfHelper.startCollecting());
+        assertTrue(simpleperfHelper.stopCollecting("data/local/tmp/perf.data"));
+    }
+
+    /** Test the invalid output path. */
+    @Test
+    public void testSimpleperfInvalidOutputPath() throws Exception {
+        assertTrue(simpleperfHelper.startCollecting());
+        // Don't have permission to create new folder under /data
+        assertFalse(simpleperfHelper.stopCollecting("/data/dummy/xyz/perf.data"));
+    }
+
+    /** Test simpleperf collection returns true and output file size greater than zero */
+    @Test
+    public void testSimpleperfSuccess() throws Exception {
+        assertTrue(simpleperfHelper.startCollecting());
+        Thread.sleep(1000);
+        assertTrue(simpleperfHelper.stopCollecting("/data/local/tmp/perf.data"));
+        Thread.sleep(1000);
+        UiDevice uiDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation());
+        String[] fileStats =
+                uiDevice.executeShellCommand(
+                                String.format(FILE_SIZE_IN_BYTES, "/data/local/tmp/perf.data"))
+                        .split(" ");
+        int fileSize = Integer.parseInt(fileStats[0].trim());
+        assertTrue(fileSize > 0);
+    }
+}