Add infrastructure to run tests on android.

mojo/edk/embedder/embedder_multiprocess_unittest.cc

Index: mojo/edk/embedder/embedder_multiprocess_unittest.cc
diff --git a/mojo/edk/embedder/embedder_multiprocess_unittest.cc b/mojo/edk/embedder/embedder_multiprocess_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0900b53c6c5d33d382d9e76453d76a1be8c98df2
--- /dev/null
+++ b/mojo/edk/embedder/embedder_multiprocess_unittest.cc
@@ -0,0 +1,234 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.

[viettrungluu, 2014/11/21 22:18:41]

Can't you just disable individual tests (using suitable ifdefs[*]) instead?

[*] Adding DISABLED_ as usual, if that works; ifdef-ing out entire tests if it
doesn't.

[qsr, 2014/11/24 12:00:47]

 I can, and will as you seem to prefer it, but doing it this way makes it
impossible to compile a multi-process test on android, which prevent trying to
understand why it is failing (or even have it work, because it mostly does)

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "mojo/edk/embedder/embedder.h"
+
+#include "mojo/edk/embedder/embedder_test_util.h"
+#include "mojo/edk/embedder/test_embedder.h"
+#include "mojo/edk/test/multiprocess_test_helper.h"
+
+namespace mojo {
+namespace embedder {
+namespace {
+
+// The sequence of messages sent is:
+//       server_mp   client_mp   mp0         mp1         mp2         mp3
+//   1.  "hello"
+//   2.              "world!"
+//   3.                          "FOO"
+//   4.  "Bar"+mp1
+//   5.  (close)
+//   6.              (close)
+//   7.                                                              "baz"
+//   8.                                                              (closed)
+//   9.                                      "quux"+mp2
+//  10.                          (close)
+//  11.                                      (wait/cl.)
+//  12.                                                  (wait/cl.)
+TEST_F(EmbedderTest, MultiprocessChannels) {
+  mojo::embedder::test::InitWithSimplePlatformSupport();
+  mojo::test::MultiprocessTestHelper multiprocess_test_helper;
+  multiprocess_test_helper.StartChild("MultiprocessChannelsClient");
+
+  {
+    ScopedTestChannel server_channel(
+        test_io_thread()->task_runner(),
+        multiprocess_test_helper.server_platform_handle.Pass());
+    MojoHandle server_mp = server_channel.bootstrap_message_pipe();
+    EXPECT_NE(server_mp, MOJO_HANDLE_INVALID);
+    server_channel.WaitForChannelCreationCompletion();
+    EXPECT_TRUE(server_channel.channel_info());
+
+    // 1. Write a message to |server_mp| (attaching nothing).
+    const char kHello[] = "hello";
+    EXPECT_EQ(MOJO_RESULT_OK,
+              MojoWriteMessage(server_mp, kHello,
+                               static_cast<uint32_t>(sizeof(kHello)), nullptr,
+                               0, MOJO_WRITE_MESSAGE_FLAG_NONE));
+
+    // TODO(vtl): If the scope were ended immediately here (maybe after closing
+    // |server_mp|), we die with a fatal error in |Channel::HandleLocalError()|.
+
+    // 2. Read a message from |server_mp|.
+    EXPECT_EQ(MOJO_RESULT_OK, MojoWait(server_mp, MOJO_HANDLE_SIGNAL_READABLE,
+                                       MOJO_DEADLINE_INDEFINITE));
+    char buffer[1000] = {};
+    uint32_t num_bytes = static_cast<uint32_t>(sizeof(buffer));
+    EXPECT_EQ(MOJO_RESULT_OK,
+              MojoReadMessage(server_mp, buffer, &num_bytes, nullptr, nullptr,
+                              MOJO_READ_MESSAGE_FLAG_NONE));
+    const char kWorld[] = "world!";
+    EXPECT_EQ(sizeof(kWorld), num_bytes);
+    EXPECT_STREQ(kWorld, buffer);
+
+    // Create a new message pipe (endpoints |mp0| and |mp1|).
+    MojoHandle mp0, mp1;
+    EXPECT_EQ(MOJO_RESULT_OK, MojoCreateMessagePipe(nullptr, &mp0, &mp1));
+
+    // 3. Write something to |mp0|.
+    const char kFoo[] = "FOO";
+    EXPECT_EQ(MOJO_RESULT_OK,
+              MojoWriteMessage(mp0, kFoo, static_cast<uint32_t>(sizeof(kFoo)),
+                               nullptr, 0, MOJO_WRITE_MESSAGE_FLAG_NONE));
+
+    // 4. Write a message to |server_mp|, attaching |mp1|.
+    const char kBar[] = "Bar";
+    EXPECT_EQ(
+        MOJO_RESULT_OK,
+        MojoWriteMessage(server_mp, kBar, static_cast<uint32_t>(sizeof(kBar)),
+                         &mp1, 1, MOJO_WRITE_MESSAGE_FLAG_NONE));
+    mp1 = MOJO_HANDLE_INVALID;
+
+    // 5. Close |server_mp|.
+    EXPECT_EQ(MOJO_RESULT_OK, MojoClose(server_mp));
+
+    // 9. Read a message from |mp0|, which should have |mp2| attached.
+    EXPECT_EQ(MOJO_RESULT_OK, MojoWait(mp0, MOJO_HANDLE_SIGNAL_READABLE,
+                                       MOJO_DEADLINE_INDEFINITE));
+    memset(buffer, 0, sizeof(buffer));
+    num_bytes = static_cast<uint32_t>(sizeof(buffer));
+    MojoHandle mp2 = MOJO_HANDLE_INVALID;
+    uint32_t num_handles = 1;
+    EXPECT_EQ(MOJO_RESULT_OK,
+              MojoReadMessage(mp0, buffer, &num_bytes, &mp2, &num_handles,
+                              MOJO_READ_MESSAGE_FLAG_NONE));
+    const char kQuux[] = "quux";
+    EXPECT_EQ(sizeof(kQuux), num_bytes);
+    EXPECT_STREQ(kQuux, buffer);
+    EXPECT_EQ(1u, num_handles);
+    EXPECT_NE(mp2, MOJO_HANDLE_INVALID);
+
+    // 7. Read a message from |mp2|.
+    EXPECT_EQ(MOJO_RESULT_OK, MojoWait(mp2, MOJO_HANDLE_SIGNAL_READABLE,
+                                       MOJO_DEADLINE_INDEFINITE));
+    memset(buffer, 0, sizeof(buffer));
+    num_bytes = static_cast<uint32_t>(sizeof(buffer));
+    EXPECT_EQ(MOJO_RESULT_OK,
+              MojoReadMessage(mp2, buffer, &num_bytes, nullptr, nullptr,
+                              MOJO_READ_MESSAGE_FLAG_NONE));
+    const char kBaz[] = "baz";
+    EXPECT_EQ(sizeof(kBaz), num_bytes);
+    EXPECT_STREQ(kBaz, buffer);
+
+    // 10. Close |mp0|.
+    EXPECT_EQ(MOJO_RESULT_OK, MojoClose(mp0));
+
+// 12. Wait on |mp2| (which should eventually fail) and then close it.
+// TODO(vtl): crbug.com/351768
+#if 0
+    EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION,
+              MojoWait(mp2, MOJO_HANDLE_SIGNAL_READABLE,
+                       MOJO_DEADLINE_INDEFINITE));
+#endif
+    EXPECT_EQ(MOJO_RESULT_OK, MojoClose(mp2));
+  }
+
+  EXPECT_TRUE(multiprocess_test_helper.WaitForChildTestShutdown());
+  EXPECT_TRUE(test::Shutdown());
+}
+
+MOJO_MULTIPROCESS_TEST_CHILD_TEST(MultiprocessChannelsClient) {
+  ScopedPlatformHandle client_platform_handle =
+      mojo::test::MultiprocessTestHelper::client_platform_handle.Pass();
+  EXPECT_TRUE(client_platform_handle.is_valid());
+
+  base::TestIOThread test_io_thread(base::TestIOThread::kAutoStart);
+  mojo::embedder::test::InitWithSimplePlatformSupport();
+
+  {
+    ScopedTestChannel client_channel(test_io_thread.task_runner(),
+                                     client_platform_handle.Pass());
+    MojoHandle client_mp = client_channel.bootstrap_message_pipe();
+    EXPECT_NE(client_mp, MOJO_HANDLE_INVALID);
+    client_channel.WaitForChannelCreationCompletion();
+    CHECK(client_channel.channel_info() != nullptr);
+
+    // 1. Read the first message from |client_mp|.
+    EXPECT_EQ(MOJO_RESULT_OK, MojoWait(client_mp, MOJO_HANDLE_SIGNAL_READABLE,
+                                       MOJO_DEADLINE_INDEFINITE));
+    char buffer[1000] = {};
+    uint32_t num_bytes = static_cast<uint32_t>(sizeof(buffer));
+    EXPECT_EQ(MOJO_RESULT_OK,
+              MojoReadMessage(client_mp, buffer, &num_bytes, nullptr, nullptr,
+                              MOJO_READ_MESSAGE_FLAG_NONE));
+    const char kHello[] = "hello";
+    EXPECT_EQ(sizeof(kHello), num_bytes);
+    EXPECT_STREQ(kHello, buffer);
+
+    // 2. Write a message to |client_mp| (attaching nothing).
+    const char kWorld[] = "world!";
+    EXPECT_EQ(MOJO_RESULT_OK,
+              MojoWriteMessage(client_mp, kWorld,
+                               static_cast<uint32_t>(sizeof(kWorld)), nullptr,
+                               0, MOJO_WRITE_MESSAGE_FLAG_NONE));
+
+    // 4. Read a message from |client_mp|, which should have |mp1| attached.
+    EXPECT_EQ(MOJO_RESULT_OK, MojoWait(client_mp, MOJO_HANDLE_SIGNAL_READABLE,
+                                       MOJO_DEADLINE_INDEFINITE));
+    // TODO(vtl): If the scope were to end here (and |client_mp| closed), we'd
+    // die (again due to |Channel::HandleLocalError()|).
+    memset(buffer, 0, sizeof(buffer));
+    num_bytes = static_cast<uint32_t>(sizeof(buffer));
+    MojoHandle mp1 = MOJO_HANDLE_INVALID;
+    uint32_t num_handles = 1;
+    EXPECT_EQ(MOJO_RESULT_OK,
+              MojoReadMessage(client_mp, buffer, &num_bytes, &mp1, &num_handles,
+                              MOJO_READ_MESSAGE_FLAG_NONE));
+    const char kBar[] = "Bar";
+    EXPECT_EQ(sizeof(kBar), num_bytes);
+    EXPECT_STREQ(kBar, buffer);
+    EXPECT_EQ(1u, num_handles);
+    EXPECT_NE(mp1, MOJO_HANDLE_INVALID);
+    // TODO(vtl): If the scope were to end here (and the two handles closed),
+    // we'd die due to |Channel::RunRemoteMessagePipeEndpoint()| not handling
+    // write errors (assuming the parent had closed the pipe).
+
+    // 6. Close |client_mp|.
+    EXPECT_EQ(MOJO_RESULT_OK, MojoClose(client_mp));
+
+    // Create a new message pipe (endpoints |mp2| and |mp3|).
+    MojoHandle mp2, mp3;
+    EXPECT_EQ(MOJO_RESULT_OK, MojoCreateMessagePipe(nullptr, &mp2, &mp3));
+
+    // 7. Write a message to |mp3|.
+    const char kBaz[] = "baz";
+    EXPECT_EQ(MOJO_RESULT_OK,
+              MojoWriteMessage(mp3, kBaz, static_cast<uint32_t>(sizeof(kBaz)),
+                               nullptr, 0, MOJO_WRITE_MESSAGE_FLAG_NONE));
+
+    // 8. Close |mp3|.
+    EXPECT_EQ(MOJO_RESULT_OK, MojoClose(mp3));
+
+    // 9. Write a message to |mp1|, attaching |mp2|.
+    const char kQuux[] = "quux";
+    EXPECT_EQ(MOJO_RESULT_OK,
+              MojoWriteMessage(mp1, kQuux, static_cast<uint32_t>(sizeof(kQuux)),
+                               &mp2, 1, MOJO_WRITE_MESSAGE_FLAG_NONE));
+    mp2 = MOJO_HANDLE_INVALID;
+
+    // 3. Read a message from |mp1|.
+    EXPECT_EQ(MOJO_RESULT_OK, MojoWait(mp1, MOJO_HANDLE_SIGNAL_READABLE,
+                                       MOJO_DEADLINE_INDEFINITE));
+    memset(buffer, 0, sizeof(buffer));
+    num_bytes = static_cast<uint32_t>(sizeof(buffer));
+    EXPECT_EQ(MOJO_RESULT_OK,
+              MojoReadMessage(mp1, buffer, &num_bytes, nullptr, nullptr,
+                              MOJO_READ_MESSAGE_FLAG_NONE));
+    const char kFoo[] = "FOO";
+    EXPECT_EQ(sizeof(kFoo), num_bytes);
+    EXPECT_STREQ(kFoo, buffer);
+
+    // 11. Wait on |mp1| (which should eventually fail) and then close it.
+    EXPECT_EQ(
+        MOJO_RESULT_FAILED_PRECONDITION,
+        MojoWait(mp1, MOJO_HANDLE_SIGNAL_READABLE, MOJO_DEADLINE_INDEFINITE));
+    EXPECT_EQ(MOJO_RESULT_OK, MojoClose(mp1));
+  }
+
+  EXPECT_TRUE(test::Shutdown());
+}
+
+}  // namespace
+}  // namespace embedder
+}  // namespace mojo