constTest.cpp

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#include <gtest/gtest.h>
#include "const.h"
#include <iostream>
#include <string>
#include <vector>
#include <set>
#include <sstream>


class constTest : public ::testing::Test {
protected:
    void SetUp() override {
        serif::constant::Constants::getInstance();
    }
};

TEST_F(constTest, DefaultConstructor) {
    EXPECT_NO_THROW(serif::constant::Constants::getInstance());
}

TEST_F(constTest, isLoaded) {
 
    EXPECT_NO_THROW(serif::constant::Constants::getInstance().isLoaded());
}

TEST_F(constTest, GetMethod) {
    serif::constant::Constants& obj = serif::constant::Constants::getInstance();
    EXPECT_DOUBLE_EQ(obj.get("c").value, 2.99792458e10);
    EXPECT_EQ(obj.get("c").unit, "cm / s");
    EXPECT_DOUBLE_EQ(obj.get("c").uncertainty, 0.0);
    EXPECT_EQ(obj.get("c").reference, "CODATA2022");
}

TEST_F(constTest, SubscriptOperator) {
    serif::constant::Constants& obj = serif::constant::Constants::getInstance();
    EXPECT_DOUBLE_EQ(obj["c"].value, 2.99792458e10);
    EXPECT_EQ(obj["c"].unit, "cm / s");
    EXPECT_DOUBLE_EQ(obj["c"].uncertainty, 0.0);
    EXPECT_EQ(obj["c"].reference, "CODATA2022");
}

TEST_F(constTest, HasMethod) {
    serif::constant::Constants& obj = serif::constant::Constants::getInstance();
 
    EXPECT_TRUE(obj.has("c"));
    EXPECT_FALSE(obj.has("c4"));
    EXPECT_TRUE(obj.has("hbar"));
}
 
TEST_F(constTest, KeysMethod) {
    serif::constant::Constants& obj = serif::constant::Constants::getInstance();
    std::set<std::string> checkKeys;
    checkKeys.insert("c");
    checkKeys.insert("wienK");
    checkKeys.insert("hbar");
    checkKeys.insert("g_h");
    checkKeys.insert("R_sun");
 
    std::set<std::string> keys = obj.keys();
 
    for (const auto& key : checkKeys) {
        bool found = keys.find(key) != keys.end();
        EXPECT_TRUE(found);
    }
 
    std::set<std::string> checkBadKeys;
    checkBadKeys.insert("c4");
    checkBadKeys.insert("wienK4");
    checkBadKeys.insert("hbar4");
    checkBadKeys.insert("g_h4");
    checkBadKeys.insert("R_sun4");
 
    for (const auto& key : checkBadKeys) {
        bool found = keys.find(key) != keys.end();
        EXPECT_FALSE(found);
    }
}
 
TEST_F(constTest, StreamOperator) {
    serif::constant::Constants& obj = serif::constant::Constants::getInstance();
    std::ostringstream os;
 
    os << obj.get("c");
    std::string expected = "<speed of light in vacuum: 2.99792e+10±0 cm / s (CODATA2022)>\n";
 
    EXPECT_EQ(os.str(), expected);
}