Fine tuning glGetInternalformativ.

gpu/command_buffer/client/gles2_implementation_unittest.cc

Index: gpu/command_buffer/client/gles2_implementation_unittest.cc
diff --git a/gpu/command_buffer/client/gles2_implementation_unittest.cc b/gpu/command_buffer/client/gles2_implementation_unittest.cc
index 0b02f94897a5ed4bd92528bbfe12291bc924fb2e..db978e1cd8d2bbdc44df4d06c9421c64973ea9f4 100644
--- a/gpu/command_buffer/client/gles2_implementation_unittest.cc
+++ b/gpu/command_buffer/client/gles2_implementation_unittest.cc
@@ -3744,6 +3744,27 @@ TEST_F(GLES2ImplementationTest, DeleteBuffersUnmapsDataStore) {
   EXPECT_EQ(GL_INVALID_OPERATION, CheckError());
 }
 
+TEST_F(GLES2ImplementationTest, GetInternalformativ) {
+  const GLint kNumSampleCounts = 8;
+  struct Cmds {
+    cmds::GetInternalformativ cmd;
+  };
+  typedef cmds::GetInternalformativ::Result::Type ResultType;
+  ResultType result = 0;
+  Cmds expected;
+  ExpectedMemoryInfo result1 =
+      GetExpectedResultMemory(sizeof(uint32_t) + sizeof(ResultType));
+  expected.cmd.Init(123, GL_RGBA8, GL_NUM_SAMPLE_COUNTS,
+                    result1.id, result1.offset);
+  EXPECT_CALL(*command_buffer(), OnFlush())
+      .WillOnce(SetMemory(result1.ptr,
+                          SizedResultHelper<ResultType>(kNumSampleCounts)))
+      .RetiresOnSaturation();
+  gl_->GetInternalformativ(123, GL_RGBA8, GL_NUM_SAMPLE_COUNTS, 1, &result);
+  EXPECT_EQ(0, memcmp(&expected, commands_, sizeof(expected)));
+  EXPECT_EQ(static_cast<ResultType>(kNumSampleCounts), result);
+}
+
 TEST_F(GLES2ImplementationManualInitTest, LoseContextOnOOM) {
   ContextInitOptions init_options;
   init_options.lose_context_when_out_of_memory = true;