95 lines
3.2 KiB
C++
95 lines
3.2 KiB
C++
// Copyright 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "dap/variant.h"
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#include "dap/typeof.h"
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#include "dap/types.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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namespace dap {
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struct VariantTestObject {
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dap::integer i;
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dap::number n;
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};
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DAP_STRUCT_TYPEINFO(VariantTestObject,
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"VariantTestObject",
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DAP_FIELD(i, "i"),
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DAP_FIELD(n, "n"));
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} // namespace dap
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TEST(Variant, EmptyConstruct) {
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dap::variant<dap::integer, dap::boolean, dap::VariantTestObject> variant;
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ASSERT_TRUE(variant.is<dap::integer>());
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ASSERT_FALSE(variant.is<dap::boolean>());
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ASSERT_FALSE(variant.is<dap::VariantTestObject>());
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}
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TEST(Variant, Boolean) {
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dap::variant<dap::integer, dap::boolean, dap::VariantTestObject> variant(
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dap::boolean(true));
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ASSERT_TRUE(variant.is<dap::boolean>());
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ASSERT_EQ(variant.get<dap::boolean>(), dap::boolean(true));
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}
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TEST(Variant, Integer) {
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dap::variant<dap::integer, dap::boolean, dap::VariantTestObject> variant(
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dap::integer(10));
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ASSERT_TRUE(variant.is<dap::integer>());
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ASSERT_EQ(variant.get<dap::integer>(), dap::integer(10));
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}
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TEST(Variant, TestObject) {
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dap::variant<dap::integer, dap::boolean, dap::VariantTestObject> variant(
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dap::VariantTestObject{5, 3.0});
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ASSERT_TRUE(variant.is<dap::VariantTestObject>());
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ASSERT_EQ(variant.get<dap::VariantTestObject>().i, 5);
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ASSERT_EQ(variant.get<dap::VariantTestObject>().n, 3.0);
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}
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TEST(Variant, Assign) {
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dap::variant<dap::integer, dap::boolean, dap::VariantTestObject> variant(
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dap::integer(10));
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variant = dap::integer(10);
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ASSERT_TRUE(variant.is<dap::integer>());
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ASSERT_FALSE(variant.is<dap::boolean>());
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ASSERT_FALSE(variant.is<dap::VariantTestObject>());
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ASSERT_EQ(variant.get<dap::integer>(), dap::integer(10));
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variant = dap::boolean(true);
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ASSERT_FALSE(variant.is<dap::integer>());
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ASSERT_TRUE(variant.is<dap::boolean>());
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ASSERT_FALSE(variant.is<dap::VariantTestObject>());
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ASSERT_EQ(variant.get<dap::boolean>(), dap::boolean(true));
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variant = dap::VariantTestObject{5, 3.0};
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ASSERT_FALSE(variant.is<dap::integer>());
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ASSERT_FALSE(variant.is<dap::boolean>());
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ASSERT_TRUE(variant.is<dap::VariantTestObject>());
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ASSERT_EQ(variant.get<dap::VariantTestObject>().i, 5);
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ASSERT_EQ(variant.get<dap::VariantTestObject>().n, 3.0);
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}
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TEST(Variant, Accepts) {
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using variant =
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dap::variant<dap::integer, dap::boolean, dap::VariantTestObject>;
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ASSERT_TRUE(variant::accepts<dap::integer>());
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ASSERT_TRUE(variant::accepts<dap::boolean>());
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ASSERT_TRUE(variant::accepts<dap::VariantTestObject>());
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ASSERT_FALSE(variant::accepts<dap::number>());
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ASSERT_FALSE(variant::accepts<dap::string>());
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}
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