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Copy pathstring_enum_tests.cpp
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114 lines (98 loc) · 2.8 KB
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#include <gtest/gtest.h>
#include "string_enum.hpp"
#include <string>
#include <sstream>
STRING_ENUM(Color,
Red,
Green,
Blue
);
TEST(string_enum, selfComparison) {
EXPECT_EQ(Color::Red, Color::Red);
EXPECT_EQ(Color::Green, Color::Green);
EXPECT_EQ(Color::Blue, Color::Blue);
EXPECT_NE(Color::Red, Color::Green);
EXPECT_NE(Color::Red, Color::Blue);
EXPECT_NE(Color::Green, Color::Blue);
EXPECT_GT(Color::Green, Color::Red);
EXPECT_GT(Color::Blue, Color::Red);
EXPECT_GT(Color::Blue, Color::Green);
EXPECT_LT(Color::Red, Color::Green);
EXPECT_LT(Color::Red, Color::Blue);
EXPECT_LT(Color::Green, Color::Blue);
}
TEST(string_enum, constructionFromInt) {
EXPECT_EQ(Color::Red, Color(0));
EXPECT_EQ(Color::Green, Color(1));
EXPECT_EQ(Color::Blue, Color(2));
}
TEST(string_enum, integerComparison) {
EXPECT_EQ(Color::Red, 0);
EXPECT_EQ(Color::Green, 1);
EXPECT_EQ(Color::Blue, 2);
EXPECT_GT(1, Color::Red);
EXPECT_GT(Color::Red, -1);
EXPECT_LT(-1, Color::Red);
EXPECT_LT(Color::Red, 1);
EXPECT_GT(2, Color::Green);
EXPECT_GT(Color::Green, 0);
EXPECT_LT(0, Color::Green);
EXPECT_LT(Color::Green, 2);
EXPECT_GT(3, Color::Blue);
EXPECT_GT(Color::Blue, 1);
EXPECT_LT(1, Color::Blue);
EXPECT_LT(Color::Blue, 3);
}
TEST(string_enum, cstringComparison) {
EXPECT_STREQ(static_cast<const char*>(Color::Red), "Red");
EXPECT_STREQ(static_cast<const char*>(Color::Green), "Green");
EXPECT_STREQ(static_cast<const char*>(Color::Blue), "Blue");
}
TEST(string_enum, constructionFromIntExceedingRange) {
EXPECT_THROW(Color(3), std::invalid_argument);
EXPECT_THROW(Color(-1), std::invalid_argument);
}
TEST(string_enum, switchExpressionSupport) {
switch(Color(2)) {
case Color::Red: FAIL();
case Color::Green: FAIL();
case Color::Blue: {
SUCCEED();
break;
}
default: FAIL();
}
}
TEST(string_enum, sizeOnStack) {
enum class Color2 {
Red,
Green,
Blue
};
EXPECT_EQ(sizeof(Color2::Red), sizeof(Color::Red));
Color c = Color::Red;
Color2 c2 = Color2::Red;
EXPECT_EQ(sizeof(c), sizeof(c2));
}
TEST(string_enum, convertionToString) {
EXPECT_EQ(static_cast<std::string>(Color::Red), "Red");
EXPECT_EQ(static_cast<std::string>(Color::Green), "Green");
EXPECT_EQ(static_cast<std::string>(Color::Blue), "Blue");
}
TEST(string_enum, ostreamShiftLeftOperator) {
{
std::stringstream ss;
ss << Color::Red;
EXPECT_EQ(ss.str(), "Red");
}
{
std::stringstream ss;
ss << Color::Green;
EXPECT_EQ(ss.str(), "Green");
}
{
std::stringstream ss;
ss << Color::Blue;
EXPECT_EQ(ss.str(), "Blue");
}
}