[NaCl SDK] nacl_io: Add new fakes

native_client_sdk/src/tests/nacl_io_test/fake_var_array_buffer_interface.cc

Index: native_client_sdk/src/tests/nacl_io_test/fake_var_array_buffer_interface.cc
diff --git a/native_client_sdk/src/tests/nacl_io_test/fake_var_array_buffer_interface.cc b/native_client_sdk/src/tests/nacl_io_test/fake_var_array_buffer_interface.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f19da86ff4073fe48dc1029545f23292fcf56a1e
--- /dev/null
+++ b/native_client_sdk/src/tests/nacl_io_test/fake_var_array_buffer_interface.cc
@@ -0,0 +1,42 @@
+// Copyright (c) 2014 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.
+
+#include "fake_var_array_buffer_interface.h"
+
+#include "fake_var_manager.h"
+#include "gtest/gtest.h"
+
+FakeVarArrayBufferInterface::FakeVarArrayBufferInterface(
+    FakeVarManager* manager) : manager_(manager) {}
+
+struct PP_Var FakeVarArrayBufferInterface::Create(uint32_t size_in_bytes) {
+  FakeVarData* var_data = manager_->CreateVarData();
+  var_data->type = PP_VARTYPE_ARRAY_BUFFER;
+  var_data->buffer_value.length = size_in_bytes;
+  var_data->buffer_value.ptr = malloc(size_in_bytes);
+
+  struct PP_Var result = {PP_VARTYPE_ARRAY_BUFFER, 0, {PP_FALSE}};
+  result.value.as_id = var_data->id;
+  return result;
+}
+
+PP_Bool FakeVarArrayBufferInterface::ByteLength(struct PP_Var var,
+                                                uint32_t* byte_length) {
+  EXPECT_EQ(PP_VARTYPE_ARRAY_BUFFER, var.type);
+  FakeVarData* data = manager_->GetVarData(var);
+  EXPECT_NE(static_cast<FakeVarData*>(NULL), data);

[binji, 2014/01/17 22:59:18]

AFAIK, this will just print an error and then crash. I suppose that's OK.

[Sam Clegg, 2014/01/17 23:50:31]

Yes, I'd rather do ASSERT_EQ but that doesn't work in non-void functions I
think.

+  *byte_length = data->buffer_value.length;
+  return PP_TRUE;
+}
+
+void* FakeVarArrayBufferInterface::Map(struct PP_Var var) {
+  EXPECT_EQ(PP_VARTYPE_ARRAY_BUFFER, var.type);
+  FakeVarData* data = manager_->GetVarData(var);
+  EXPECT_NE(static_cast<FakeVarData*>(NULL), data);
+  return data->buffer_value.ptr;
+}
+
+void FakeVarArrayBufferInterface::Unmap(struct PP_Var var) {
+  ASSERT_EQ(PP_VARTYPE_ARRAY_BUFFER, var.type);

[binji, 2014/01/17 22:59:18]

ASSERT_EQ is irrelevant here -- it will just do EXPECT_EQ followed by return.

+}