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// Copyright 2019 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#include <cstring>
#include "gtest/gtest.h"
#include "pw_assert/check.h"
namespace pw {
namespace {
TEST(PigweedTest, ExpectBool) {
EXPECT_TRUE(true);
EXPECT_FALSE(false);
EXPECT_TRUE(1);
EXPECT_TRUE(1203492);
EXPECT_TRUE(-1);
EXPECT_TRUE(0.1f);
EXPECT_FALSE(0);
EXPECT_FALSE(0.0f);
EXPECT_FALSE(-0.0f);
}
TEST(PigweedTest, ExpectBasicComparisons) {
EXPECT_EQ(1, 1 + 0);
ASSERT_EQ(1, 1 + 0);
EXPECT_EQ(0.0f, -0.0f);
ASSERT_EQ(0.0f, -0.0f);
EXPECT_NE(-1, 0);
ASSERT_NE(-1, 0);
EXPECT_GT(2, 1);
ASSERT_GT(3, 0);
EXPECT_GE(1, 1);
ASSERT_GE(3, 0);
EXPECT_LT(0, 1);
ASSERT_LT(-2, 1209);
EXPECT_LE(-1, 0);
ASSERT_LE(-2, -2);
}
TEST(PigweedTest, ExpectStringEquality) {
EXPECT_STREQ("", "");
EXPECT_STREQ("Yes", "Yes");
char no[] = {'N', 'o', '\0'};
ASSERT_STREQ("No", no);
EXPECT_STRNE("NO", "no");
ASSERT_STRNE("yes", no);
}
TEST(PigweedTest, SucceedAndFailMacros) {
SUCCEED();
// The ADD_FAILURE() and FAIL() macros cause a test to fail if they are
// reached. Use them, but don't let them run so that this test still passes.
if (false) {
ADD_FAILURE();
FAIL();
}
}
TEST(PigweedTest, SkipMacro) {
GTEST_SKIP();
// This code should not run.
EXPECT_TRUE(false);
}
class SkipOnSetUpTest : public ::testing::Test {
public:
void SetUp() override { GTEST_SKIP(); }
};
TEST_F(SkipOnSetUpTest, FailTest) {
// This code should not run because the test was skipped in SetUp().
EXPECT_TRUE(false);
}
class NonCopyable {
public:
NonCopyable(int value) : value_(value) {}
NonCopyable(const NonCopyable&) = delete;
NonCopyable& operator=(const NonCopyable&) = delete;
bool operator==(const NonCopyable& rhs) const { return value_ == rhs.value_; }
bool operator!=(const NonCopyable& rhs) const { return value_ != rhs.value_; }
operator bool() const { return value_ > 0; }
private:
const int value_;
};
TEST(PigweedTest, NonCopyableType) {
EXPECT_TRUE(NonCopyable(6));
EXPECT_FALSE(NonCopyable(-1));
const NonCopyable this_one(100);
EXPECT_EQ(this_one, this_one);
EXPECT_TRUE(this_one);
EXPECT_EQ(NonCopyable(5), NonCopyable(5));
EXPECT_NE(NonCopyable(5), NonCopyable(6));
}
bool Increment(int* i) {
(*i)++;
return true;
}
TEST(PigweedTest, MacroArgumentsOnlyAreEvaluatedOnce) {
int i = 1;
EXPECT_TRUE(Increment(&i));
EXPECT_EQ(i, 2);
ASSERT_TRUE(Increment(&i));
EXPECT_EQ(i, 3);
EXPECT_EQ(0x600dbeef, [&i]() {
i += 1;
return 0x600dbeef;
}());
EXPECT_EQ(i, 4);
}
class FixtureTest : public ::testing::Test {
public:
FixtureTest() : string_("hello world") {}
bool ReturnTrue() { return true; }
int StringLength() { return std::strlen(string_); }
protected:
const char* string_;
};
TEST_F(FixtureTest, CustomFixture) {
EXPECT_TRUE(ReturnTrue());
EXPECT_EQ(StringLength(), 11);
}
class PigweedTestFixture : public ::testing::Test {
protected:
PigweedTestFixture() : cool_number_(35) {}
int cool_number_;
};
TEST_F(PigweedTestFixture, TheNumberIs35) {
EXPECT_EQ(cool_number_, 35);
cool_number_ += 1;
EXPECT_EQ(cool_number_, 36);
}
TEST_F(PigweedTestFixture, YupTheNumberIs35) {
EXPECT_EQ(cool_number_, 35);
cool_number_ *= 100;
EXPECT_EQ(cool_number_, 3500);
}
class Expectations : public ::testing::Test {
protected:
Expectations() : cool_number_(3) { PW_CHECK_INT_EQ(cool_number_, 3); }
~Expectations() override { PW_CHECK_INT_EQ(cool_number_, 14159); }
int cool_number_;
};
TEST_F(Expectations, SetCoolNumber) { cool_number_ = 14159; }
class SetUpAndTearDown : public ::testing::Test {
protected:
SetUpAndTearDown() : value_(0) { EXPECT_EQ(value_, 0); }
~SetUpAndTearDown() override { EXPECT_EQ(value_, 1); }
void SetUp() override { value_ = 1337; }
void TearDown() override { value_ = 1; }
int value_;
};
TEST_F(SetUpAndTearDown, MakeSureItIsSet) {
EXPECT_EQ(value_, 1337);
value_ = 3210;
}
} // namespace
} // namespace pw
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