123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130 |
- // Copyright (c) 2011 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 "base/win/enum_variant.h"
- #include <wrl/client.h>
- #include <wrl/implements.h>
- #include "base/win/scoped_com_initializer.h"
- #include "base/win/scoped_variant.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace base {
- namespace win {
- TEST(EnumVariantTest, EmptyEnumVariant) {
- ScopedCOMInitializer com_initializer;
- Microsoft::WRL::ComPtr<EnumVariant> ev = Microsoft::WRL::Make<EnumVariant>(0);
- Microsoft::WRL::ComPtr<IEnumVARIANT> ienumvariant;
- ASSERT_TRUE(SUCCEEDED(ev->QueryInterface(IID_PPV_ARGS(&ienumvariant))));
- {
- base::win::ScopedVariant out_element;
- ULONG out_received = 0;
- EXPECT_EQ(S_FALSE, ev->Next(1, out_element.Receive(), &out_received));
- EXPECT_EQ(0u, out_received);
- }
- EXPECT_EQ(S_FALSE, ev->Skip(1));
- EXPECT_EQ(S_OK, ev->Reset());
- Microsoft::WRL::ComPtr<IEnumVARIANT> ev2;
- EXPECT_EQ(S_OK, ev->Clone(&ev2));
- EXPECT_NE(nullptr, ev2);
- EXPECT_NE(ev, ev2);
- EXPECT_EQ(S_FALSE, ev2->Skip(1));
- EXPECT_EQ(S_OK, ev2->Reset());
- }
- TEST(EnumVariantTest, SimpleEnumVariant) {
- ScopedCOMInitializer com_initializer;
- Microsoft::WRL::ComPtr<EnumVariant> ev = Microsoft::WRL::Make<EnumVariant>(3);
- ev->ItemAt(0)->vt = VT_I4;
- ev->ItemAt(0)->lVal = 10;
- ev->ItemAt(1)->vt = VT_I4;
- ev->ItemAt(1)->lVal = 20;
- ev->ItemAt(2)->vt = VT_I4;
- ev->ItemAt(2)->lVal = 30;
- // Get elements one at a time from index 0 and 2.
- base::win::ScopedVariant out_element_0;
- ULONG out_received_0 = 0;
- EXPECT_EQ(S_OK, ev->Next(1, out_element_0.Receive(), &out_received_0));
- EXPECT_EQ(1u, out_received_0);
- EXPECT_EQ(VT_I4, out_element_0.ptr()->vt);
- EXPECT_EQ(10, out_element_0.ptr()->lVal);
- EXPECT_EQ(S_OK, ev->Skip(1));
- base::win::ScopedVariant out_element_2;
- ULONG out_received_2 = 0;
- EXPECT_EQ(S_OK, ev->Next(1, out_element_2.Receive(), &out_received_2));
- EXPECT_EQ(1u, out_received_2);
- EXPECT_EQ(VT_I4, out_element_2.ptr()->vt);
- EXPECT_EQ(30, out_element_2.ptr()->lVal);
- base::win::ScopedVariant placeholder_variant;
- EXPECT_EQ(S_FALSE, ev->Next(1, placeholder_variant.Receive(), nullptr));
- // Verify the reset works for the next step.
- ASSERT_EQ(S_OK, ev->Reset());
- // Get all elements at once.
- VARIANT out_elements[3];
- ULONG out_received_multiple;
- for (int i = 0; i < 3; ++i)
- ::VariantInit(&out_elements[i]);
- EXPECT_EQ(S_OK, ev->Next(3, out_elements, &out_received_multiple));
- EXPECT_EQ(3u, out_received_multiple);
- EXPECT_EQ(VT_I4, out_elements[0].vt);
- EXPECT_EQ(10, out_elements[0].lVal);
- EXPECT_EQ(VT_I4, out_elements[1].vt);
- EXPECT_EQ(20, out_elements[1].lVal);
- EXPECT_EQ(VT_I4, out_elements[2].vt);
- EXPECT_EQ(30, out_elements[2].lVal);
- for (int i = 0; i < 3; ++i)
- ::VariantClear(&out_elements[i]);
- base::win::ScopedVariant placeholder_variant_multiple;
- EXPECT_EQ(S_FALSE,
- ev->Next(1, placeholder_variant_multiple.Receive(), nullptr));
- }
- TEST(EnumVariantTest, Clone) {
- ScopedCOMInitializer com_initializer;
- Microsoft::WRL::ComPtr<EnumVariant> ev = Microsoft::WRL::Make<EnumVariant>(3);
- ev->ItemAt(0)->vt = VT_I4;
- ev->ItemAt(0)->lVal = 10;
- ev->ItemAt(1)->vt = VT_I4;
- ev->ItemAt(1)->lVal = 20;
- ev->ItemAt(2)->vt = VT_I4;
- ev->ItemAt(2)->lVal = 30;
- // Clone it.
- Microsoft::WRL::ComPtr<IEnumVARIANT> ev2;
- EXPECT_EQ(S_OK, ev->Clone(&ev2));
- EXPECT_TRUE(ev2 != nullptr);
- VARIANT out_elements[3];
- for (int i = 0; i < 3; ++i)
- ::VariantInit(&out_elements[i]);
- EXPECT_EQ(S_OK, ev2->Next(3, out_elements, nullptr));
- EXPECT_EQ(VT_I4, out_elements[0].vt);
- EXPECT_EQ(10, out_elements[0].lVal);
- EXPECT_EQ(VT_I4, out_elements[1].vt);
- EXPECT_EQ(20, out_elements[1].lVal);
- EXPECT_EQ(VT_I4, out_elements[2].vt);
- EXPECT_EQ(30, out_elements[2].lVal);
- for (int i = 0; i < 3; ++i)
- ::VariantClear(&out_elements[i]);
- }
- } // namespace win
- } // namespace base
|