[Android WebView] Split out WebView-parts of MinidumpUploaderTest

android_webview/javatests/src/org/chromium/android_webview/test/crash/CrashReceiverServiceTest.java

Index: android_webview/javatests/src/org/chromium/android_webview/test/crash/CrashReceiverServiceTest.java
diff --git a/android_webview/javatests/src/org/chromium/android_webview/test/crash/CrashReceiverServiceTest.java b/android_webview/javatests/src/org/chromium/android_webview/test/crash/CrashReceiverServiceTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..63f4048745fb2a21ef696a5c344e4e8a56cb275c
--- /dev/null
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/crash/CrashReceiverServiceTest.java
@@ -0,0 +1,55 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.android_webview.test.crash;
+
+import android.content.Context;
+import android.os.ParcelFileDescriptor;
+import android.support.test.filters.MediumTest;
+import android.test.InstrumentationTestCase;
+
+import org.chromium.android_webview.crash.CrashReceiverService;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+/**
+ * Instrumentation tests for CrashReceiverService.
+ */
+public class CrashReceiverServiceTest extends InstrumentationTestCase {
+    /**
+     * Ensure that the minidump copying doesn't trigger when we pass it invalid file descriptors.
+     */
+    @MediumTest
+    public void testCopyingAbortsForInvalidFds() throws FileNotFoundException, IOException {
+        assertFalse(CrashReceiverService.copyMinidumps(
+                getInstrumentation().getTargetContext(), 0 /* uid */, null));
+        assertFalse(CrashReceiverService.copyMinidumps(getInstrumentation().getTargetContext(),
+                0 /* uid */, new ParcelFileDescriptor[] {null, null}));
+        assertFalse(CrashReceiverService.copyMinidumps(
+                getInstrumentation().getTargetContext(), 0 /* uid */, new ParcelFileDescriptor[0]));
+    }
+
+    /**
+     * Ensure deleting temporary files used when copying minidumps works correctly.
+     */
+    @MediumTest
+    public void testDeleteFilesInDir() throws IOException {
+        Context context = getInstrumentation().getTargetContext();
+        File webviewTmpDir = CrashReceiverService.getWebViewTmpCrashDir(context);
+        if (!webviewTmpDir.isDirectory()) {
+            assertTrue(webviewTmpDir.mkdir());
+        }
+        File testFile1 = new File(webviewTmpDir, "testFile1");
+        File testFile2 = new File(webviewTmpDir, "testFile2");
+        assertTrue(testFile1.createNewFile());
+        assertTrue(testFile2.createNewFile());
+        assertTrue(testFile1.exists());
+        assertTrue(testFile2.exists());
+        CrashReceiverService.deleteFilesInWebViewTmpDirIfExists(context);
+        assertFalse(testFile1.exists());
+        assertFalse(testFile2.exists());
+    }
+}