Hook up V8<->Var conversion in the pepper message channel

This hooks up V8<->Var conversion in the pepper message channel so that Array/Dictionaries can be transmitted to and from the plugin using Post/HandleMessage.

This CL also adds integration tests for transmitting Arrays/Dictionaries.

BUG=236958

Review URL: https://chromiumcodereview.appspot.com/14636009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@200880 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 227 insertions, 14 deletions

diff --git a/ppapi/tests/test_post_message.cc b/ppapi/tests/test_post_message.cc
index 39102e1..8c67ee5 100644
--- a/ppapi/tests/test_post_message.cc
+++ b/ppapi/tests/test_post_message.cc
@@ -5,6 +5,7 @@
 #include "ppapi/tests/test_post_message.h"
 
 #include <algorithm>
+#include <map>
 #include <sstream>
 
 #include "ppapi/c/dev/ppb_testing_dev.h"
@@ -58,6 +59,64 @@ void InvokePostMessageThreadFunc(void* user_data) {
   delete arg;
 }
 
+// TODO(raymes): Consider putting something like this into pp::Var.
+bool VarsEqual(const pp::Var& expected,
+               const pp::Var& actual,
+               std::map<int64_t, int64_t>* visited_ids) {
+  if (expected.pp_var().type != actual.pp_var().type) {
+    if (!expected.is_number() && !actual.is_number())
+      return false;
+  }
+  // TODO(raymes): Implement a pp::Var::IsRefCounted() function.
+  if (expected.pp_var().type > PP_VARTYPE_DOUBLE) {
+    std::map<int64_t, int64_t>::const_iterator it =
+        visited_ids->find(expected.pp_var().value.as_id);
+    if (it != visited_ids->end()) {
+      if (it->second == actual.pp_var().value.as_id)
+        return true;
+      return false;
+    }
+    (*visited_ids)[expected.pp_var().value.as_id] = actual.pp_var().value.as_id;
+  }
+
+  if (expected.is_number()) {
+    return fabs(expected.AsDouble() - actual.AsDouble()) < 1.0e-4;
+  } else if (expected.is_array()) {
+    pp::VarArray_Dev expected_array(expected);
+    pp::VarArray_Dev actual_array(actual);
+    if (expected_array.GetLength() != actual_array.GetLength())
+      return false;
+    for (uint32_t i = 0; i < expected_array.GetLength(); ++i) {
+      if (!VarsEqual(expected_array.Get(i), actual_array.Get(i), visited_ids))
+        return false;
+    }
+    return true;
+  } else if (expected.is_dictionary()) {
+    pp::VarDictionary_Dev expected_dict(expected);
+    pp::VarDictionary_Dev actual_dict(actual);
+    if (expected_dict.GetKeys().GetLength() !=
+        actual_dict.GetKeys().GetLength()) {
+      return false;
+    }
+    for (uint32_t i = 0; i < expected_dict.GetKeys().GetLength(); ++i) {
+      pp::Var key = expected_dict.GetKeys().Get(i);
+      if (actual_dict.HasKey(key) == PP_FALSE)
+        return false;
+      if (!VarsEqual(expected_dict.Get(key), actual_dict.Get(key), visited_ids))
+        return false;
+    }
+    return true;
+  } else {
+    return expected == actual;
+  }
+}
+
+bool VarsEqual(const pp::Var& expected,
+               const pp::Var& actual) {
+  std::map<int64_t, int64_t> visited_ids;
+  return VarsEqual(expected, actual, &visited_ids);
+}
+
 class ScopedArrayBufferSizeSetter {
  public:
   ScopedArrayBufferSizeSetter(const PPB_Testing_Dev* interface,
@@ -135,6 +194,9 @@ void TestPostMessage::RunTests(const std::string& filter) {
   RUN_TEST(SendInInit, filter);
   RUN_TEST(SendingData, filter);
   RUN_TEST(SendingArrayBuffer, filter);
+  RUN_TEST(SendingArray, filter);
+  RUN_TEST(SendingDictionary, filter);
+  RUN_TEST(SendingComplexVar, filter);
   RUN_TEST(MessageEvent, filter);
   RUN_TEST(NoHandler, filter);
   RUN_TEST(ExtraParam, filter);
@@ -199,6 +261,27 @@ int TestPostMessage::WaitForMessages() {
   return message_data_.size() - message_size_before;
 }
 
+std::string TestPostMessage::CheckMessageProperties(
+    const pp::Var& test_data,
+    const std::vector<std::string>& properties_to_check) {
+  typedef std::vector<std::string>::const_iterator Iterator;
+  for (Iterator iter = properties_to_check.begin();
+       iter != properties_to_check.end();
+       ++iter) {
+    ASSERT_TRUE(AddEchoingListener(*iter));
+    message_data_.clear();
+    instance_->PostMessage(test_data);
+    ASSERT_EQ(message_data_.size(), 0);
+    ASSERT_EQ(WaitForMessages(), 1);
+    ASSERT_TRUE(message_data_.back().is_bool());
+    if (!message_data_.back().AsBool())
+      return std::string("Failed: ") + *iter;
+    ASSERT_TRUE(message_data_.back().AsBool());
+    ASSERT_TRUE(ClearListeners());
+  }
+  PASS();
+}
+
 std::string TestPostMessage::TestSendInInit() {
   ASSERT_EQ(WaitForMessages(), 1);
   // This test assumes Init already sent a message.
@@ -317,20 +400,8 @@ std::string TestPostMessage::TestSendingArrayBuffer() {
       std::string expected_byte("(message_event.data.byteLength-1)%256");
       properties_to_check.push_back(received_byte + " == " + expected_byte);
     }
-    for (std::vector<std::string>::iterator iter = properties_to_check.begin();
-         iter != properties_to_check.end();
-         ++iter) {
-      ASSERT_TRUE(AddEchoingListener(*iter));
-      message_data_.clear();
-      instance_->PostMessage(test_data);
-      ASSERT_EQ(message_data_.size(), 0);
-      ASSERT_EQ(WaitForMessages(), 1);
-      ASSERT_TRUE(message_data_.back().is_bool());
-      if (!message_data_.back().AsBool())
-        return std::string("Failed: ") + *iter + ", size: " + kSizeAsString;
-      ASSERT_TRUE(message_data_.back().AsBool());
-      ASSERT_TRUE(ClearListeners());
-    }
+    ASSERT_SUBTEST_SUCCESS(CheckMessageProperties(test_data,
+                                                  properties_to_check));
 
     // Set up the JavaScript message event listener to echo the data part of the
     // message event back to us.
@@ -360,6 +431,148 @@ std::string TestPostMessage::TestSendingArrayBuffer() {
   PASS();
 }
 
+std::string TestPostMessage::TestSendingArray() {
+  // Clean up after previous tests. This also swallows the message sent by Init
+  // if we didn't run the 'SendInInit' test. All tests other than 'SendInInit'
+  // should start with these.
+  WaitForMessages();
+  ASSERT_TRUE(ClearListeners());
+
+  pp::VarArray_Dev array;
+  array.Set(0, pp::Var(kTestBool));
+  array.Set(1, pp::Var(kTestString));
+  // Purposely leave index 2 empty.
+  array.Set(3, pp::Var(kTestInt));
+  array.Set(4, pp::Var(kTestDouble));
+
+  std::stringstream ss;
+  ss << array.GetLength();
+  std::string length_as_string(ss.str());
+
+  // Have the listener test some properties of the Array.
+  std::vector<std::string> properties_to_check;
+  properties_to_check.push_back(
+      "message_event.data.constructor.name === 'Array'");
+  properties_to_check.push_back(
+      std::string("message_event.data.length === ") + length_as_string);
+  ASSERT_SUBTEST_SUCCESS(CheckMessageProperties(array, properties_to_check));
+
+  // Set up the JavaScript message event listener to echo the data part of the
+  // message event back to us.
+  ASSERT_TRUE(AddEchoingListener("message_event.data"));
+  message_data_.clear();
+  instance_->PostMessage(array);
+  // PostMessage is asynchronous, so we should not receive a response yet.
+  ASSERT_EQ(message_data_.size(), 0);
+  ASSERT_EQ(WaitForMessages(), 1);
+  ASSERT_TRUE(message_data_.back().is_array());
+  ASSERT_TRUE(VarsEqual(array, message_data_.back()));
+
+  message_data_.clear();
+  ASSERT_TRUE(ClearListeners());
+
+  PASS();
+}
+
+std::string TestPostMessage::TestSendingDictionary() {
+  // Clean up after previous tests. This also swallows the message sent by Init
+  // if we didn't run the 'SendInInit' test. All tests other than 'SendInInit'
+  // should start with these.
+  WaitForMessages();
+  ASSERT_TRUE(ClearListeners());
+
+  pp::VarDictionary_Dev dictionary;
+  dictionary.Set(pp::Var("foo"), pp::Var(kTestBool));
+  dictionary.Set(pp::Var("bar"), pp::Var(kTestString));
+  dictionary.Set(pp::Var("abc"), pp::Var(kTestInt));
+  dictionary.Set(pp::Var("def"), pp::Var());
+
+  std::stringstream ss;
+  ss << dictionary.GetKeys().GetLength();
+  std::string length_as_string(ss.str());
+
+  // Have the listener test some properties of the Dictionary.
+  std::vector<std::string> properties_to_check;
+  properties_to_check.push_back(
+      "message_event.data.constructor.name === 'Object'");
+  properties_to_check.push_back(
+      std::string("Object.keys(message_event.data).length === ") +
+      length_as_string);
+  ASSERT_SUBTEST_SUCCESS(CheckMessageProperties(dictionary,
+                                                properties_to_check));
+
+  // Set up the JavaScript message event listener to echo the data part of the
+  // message event back to us.
+  ASSERT_TRUE(AddEchoingListener("message_event.data"));
+  message_data_.clear();
+  instance_->PostMessage(dictionary);
+  // PostMessage is asynchronous, so we should not receive a response yet.
+  ASSERT_EQ(message_data_.size(), 0);
+  ASSERT_EQ(WaitForMessages(), 1);
+  ASSERT_TRUE(message_data_.back().is_dictionary());
+  ASSERT_TRUE(VarsEqual(dictionary, message_data_.back()));
+
+  message_data_.clear();
+  ASSERT_TRUE(ClearListeners());
+
+  PASS();
+}
+
+std::string TestPostMessage::TestSendingComplexVar() {
+  // Clean up after previous tests. This also swallows the message sent by Init
+  // if we didn't run the 'SendInInit' test. All tests other than 'SendInInit'
+  // should start with these.
+  WaitForMessages();
+  ASSERT_TRUE(ClearListeners());
+
+  pp::Var string(kTestString);
+  pp::VarDictionary_Dev dictionary;
+  dictionary.Set(pp::Var("foo"), pp::Var(kTestBool));
+  dictionary.Set(pp::Var("bar"), string);
+  dictionary.Set(pp::Var("abc"), pp::Var(kTestInt));
+  dictionary.Set(pp::Var("def"), pp::Var());
+  dictionary.Set(pp::Var("dictionary"), dictionary);  // Self-reference.
+
+  // Reference to array.
+  pp::VarArray_Dev array;
+  array.Set(0, pp::Var(kTestBool));
+  array.Set(1, string);
+  // Purposely leave index 2 empty (which will place an undefined var there).
+  array.Set(3, pp::Var(kTestInt));
+  array.Set(4, pp::Var(kTestDouble));
+
+  dictionary.Set(pp::Var("array-ref1"), array);
+  dictionary.Set(pp::Var("array-ref2"), array);
+
+  // Set up a (dictionary -> array -> dictionary) cycle.
+  pp::VarArray_Dev array2;
+  array2.Set(0, dictionary);
+  dictionary.Set(pp::Var("array2"), array2);
+
+  // Set up the JavaScript message event listener to echo the data part of the
+  // message event back to us.
+  ASSERT_TRUE(AddEchoingListener("message_event.data"));
+  message_data_.clear();
+  instance_->PostMessage(dictionary);
+  // PostMessage is asynchronous, so we should not receive a response yet.
+  ASSERT_EQ(message_data_.size(), 0);
+  ASSERT_EQ(WaitForMessages(), 1);
+  ASSERT_TRUE(message_data_.back().is_dictionary());
+  pp::VarDictionary_Dev result(message_data_.back());
+  ASSERT_TRUE(VarsEqual(dictionary, message_data_.back()));
+
+  // Break the cycles.
+  dictionary.Delete(pp::Var("dictionary"));
+  dictionary.Delete(pp::Var("array2"));
+  result.Delete(pp::Var("dictionary"));
+  result.Delete(pp::Var("array2"));
+
+  message_data_.clear();
+  ASSERT_TRUE(ClearListeners());
+
+  PASS();
+}
+
 std::string TestPostMessage::TestMessageEvent() {
   // Set up the JavaScript message event listener to pass us some values from
   // the MessageEvent and make sure they match our expectations.