Allow native command line arguments to be initialized early.

android_webview/javatests/src/org/chromium/android_webview/test/CommandLineTest.java

Index: android_webview/javatests/src/org/chromium/android_webview/test/CommandLineTest.java
diff --git a/android_webview/javatests/src/org/chromium/android_webview/test/CommandLineTest.java b/android_webview/javatests/src/org/chromium/android_webview/test/CommandLineTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..1a70b319155e35f87e048b960e8e1ef50443c557
--- /dev/null
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/CommandLineTest.java
@@ -0,0 +1,52 @@
+// Copyright 2012 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;
+
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.chromium.android_webview.AwBrowserProcess;
+import org.chromium.base.CommandLine;
+import org.chromium.base.test.util.Feature;
+
+/**
+ * Test suite for setting by the command line.
+ */
+public class CommandLineTest extends AwTestBase {
+    @Override
+    protected boolean needsBrowserProcessStarted() {
+        return false;
+    }
+
+    @SmallTest
+    @Feature({"AndroidWebView"})
+    public void testSetupCommandLine() throws Exception {
+        // The commandline starts off in Java:
+        CommandLine cl = CommandLine.getInstance();
+        assertFalse(cl.isNativeImplementation());
+
+        // We can add a switch.
+        assertFalse(cl.hasSwitch("magic-switch"));
+        cl.appendSwitchWithValue("magic-switch", "magic");
+        assertTrue(cl.hasSwitch("magic-switch"));
+        assertEquals("magic", cl.getSwitchValue("magic-switch"));
+
+        // Setup Chrome.
+        AwBrowserProcess.loadLibrary();
+
+        // Now we should have switched to a native backed command line:
+        cl = CommandLine.getInstance();
+        assertTrue(cl.isNativeImplementation());
+
+        // Our first switch is still there.
+        assertTrue(cl.hasSwitch("magic-switch"));
+        assertEquals("magic", cl.getSwitchValue("magic-switch"));
+
+        // And we can add another one.
+        assertFalse(cl.hasSwitch("more-magic-switch"));
+        cl.appendSwitchWithValue("more-magic-switch", "more-magic");
+        assertTrue(cl.hasSwitch("more-magic-switch"));
+        assertEquals("more-magic", cl.getSwitchValue("more-magic-switch"));
+    }
+}