Cronet smoke tests

components/cronet/android/test/smoketests/src/org/chromium/net/smoke/BrokenNativeLibraryTest.java

Index: components/cronet/android/test/smoketests/src/org/chromium/net/smoke/BrokenNativeLibraryTest.java
diff --git a/components/cronet/android/test/smoketests/src/org/chromium/net/smoke/BrokenNativeLibraryTest.java b/components/cronet/android/test/smoketests/src/org/chromium/net/smoke/BrokenNativeLibraryTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..d7ff638ae6b899aface2401078189e3189313881
--- /dev/null
+++ b/components/cronet/android/test/smoketests/src/org/chromium/net/smoke/BrokenNativeLibraryTest.java
@@ -0,0 +1,48 @@
+// Copyright 2016 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.net.smoke;
+
+import android.test.suitebuilder.annotation.Smoke;
+
+import org.chromium.net.CronetEngine;
+import org.chromium.net.ExperimentalCronetEngine;
+
+/**
+ *  Tests scenarios when the native shared library file is missing in the APK or was built for a
+ *  wrong architecture.
+ */
+public class BrokenNativeLibraryTest extends CronetTestBase {

[mef, 2016/12/20 20:17:45]

Nit: Maybe s/Broken/Missing/ as we are actually testing missing .so file and not
the one present but corrupted.

[kapishnikov, 2016/12/22 19:21:13]

Done.

+    /**
+     * If the ".so" file is absent, instantiating the Cronet engine should throw an exception.

[mef, 2016/12/20 20:17:45]

nit: Maybe s/absent/missing/ for consistency?

[kapishnikov, 2016/12/22 19:21:13]

Done.

+     */
+    @Smoke
+    public void testExceptionWhenSoFileIsAbsent() throws Exception {
+        ExperimentalCronetEngine.Builder builder =
+                new ExperimentalCronetEngine.Builder(getContext());
+        try {
+            builder.build();
+            fail("Expected exception since the shared library '.so' file is absent");
+        } catch (Throwable t) {
+            // Find the root cause.
+            while (t.getCause() != null) {
+                t = t.getCause();
+            }
+            assertEquals(UnsatisfiedLinkError.class, t.getClass());
+        }
+    }
+
+    /**
+     * Tests the enableLegacyMode API that allows the embedder to force JavaCronetEngine
+     * instantiation even when the native Cronet engine implementation is available.
+     */
+    @Smoke
+    public void testEnableLegacyMode() throws Exception {
+        ExperimentalCronetEngine.Builder builder =
+                new ExperimentalCronetEngine.Builder(getContext());
+        builder.enableLegacyMode(true);
+        CronetEngine engine = builder.build();
+        assertJavaEngine(engine);
+    }
+}