#include "gtest/gtest.h"
#include "pistring.h"
#include "pistringlist.h"
#include "math.h"

using namespace std;

template <typename T>
bool is_equal(T x, T y) {
	return std::fabs(x - y) < std::numeric_limits<T>::epsilon();
}

TEST(PIString_Tests, constructor_empty){
	PIString str1;
	ASSERT_TRUE(str1.isEmpty());
}


TEST(PIString_Tests, operator_concatenation_pichar){
	PIString str1 = "AB C";
	const PIChar str2 = " ";
	str1 += str2;
	PIString res = "AB C ";
	ASSERT_EQ(str1, res);
}

TEST(PIString_Tests, operator_concatenation_pichar_zero1){
	PIString str1 = "";
	const PIChar str2 = "D";
	str1 += str2;
	ASSERT_EQ(str1, "D");
}

TEST(PIString_Tests, operator_concatenation_cstring){
	PIString str1 = "AB C";
	const char *str2 = "D D ";
	str1 += str2;
	ASSERT_EQ(str1, "AB CD D ");
}

TEST(PIString_Tests, operator_concatenation_cstring_zero1){
	PIString str1 = "";
	const char *str2 = "D D ";
	str1 += str2;
	ASSERT_EQ(str1, "D D ");
}

TEST(PIString_Tests, operator_concatenation_wchar){
	PIString str1= "AB C";
	wchar_t str2[] = L"C";
	str1 += str2;
	ASSERT_EQ(str1, "AB CC");
}

TEST(PIString_Tests, operator_concatenation_wchar_zero1){
	PIString str1 = "";
	wchar_t str2[] = L"C";
	str1 += str2;
	ASSERT_EQ(str1, "C");
}

TEST(PIString_Tests, operator_concatenation_pistring){
	PIString str1 = "AB C";
	PIString str2 = " CD  ";
	str1 += str2;
	ASSERT_EQ(str1, "AB C CD  ");
}

TEST(PIString_Tests, operator_concatenation_pistring_zero1){
	PIString str1 = "";
	PIString str2 = "D DD";
	str1 += str2;
	ASSERT_EQ(str1, "D DD");
}

TEST(PIString_Tests, operator_concatenation_pistring_zero2){
	PIString str1 = "AB C";
	PIString str2 = "";
	str1 += str2;
	ASSERT_EQ(str1, "AB C");
}

TEST(PIString_Tests, operator_concatenation_pistring_zero_zero){
	PIString str1;
	PIString str2;
	str1 += str2;
	ASSERT_EQ(str1, "");
}

TEST(PIString_Tests, operator_concatenation_piByteArray){
	PIString str1 = "AB C";
	PIByteArray str2;
	str2.append('g');
	str1 += str2;
	ASSERT_EQ(str1, "AB Cg");
}

TEST(PIString_Tests, operator_concatenation_piByteArray_zero1){
	PIString str1 = "";
	PIByteArray str2;
	str2.append('0');
	str1 += str2;
	ASSERT_EQ(str1, "0");
}

TEST(PIString_Tests, operator_concatenation_piByteArray_zero2){
	PIString str1 = "AB C";
	PIByteArray str2;
	str1 += str2;
	ASSERT_EQ(str1, "AB C");
}

TEST(PIString_Tests, operator_concatenation_piByteArray_zero_zero){
	PIString str1;
	PIByteArray str2;
	str1 += str2;
	ASSERT_EQ(str1, "");
}

TEST(PIString_Tests, construct_pistring){
	PIString str1 = "New";
	PIString str(str1);
	ASSERT_EQ(str1, str);
}

TEST(PIString_Tests, construct_pistring_move){
	PIString str1 = "New";
	PIString res = str1;
	PIString str(move(str1));
	ASSERT_EQ(res, str);
}

TEST(PIString_Tests, construct_from_pichar){
	PIChar str1 = 'n';
	PIString res = "n";
	ASSERT_EQ(res, PIString(str1));
}

TEST(PIString_Tests, construct_from_char){
	char str1 = 'n';
	PIString res = "n";
	ASSERT_EQ(res, PIString(str1));
}

TEST(PIString_Tests, construct_from_cstring){
	char str1[] = "mew";
	PIString res = "mew";
	ASSERT_EQ(res, PIString(str1));
}

TEST(PIString_Tests, construct_from_wchar_string){
	wchar_t str1[] = L"gav";
	PIString res = "gav";
	ASSERT_EQ(res, PIString(str1));
}

TEST(PIString_Tests, construct_from_pibyte_array){
	PIByteArray str1;
	str1.append('m');
	PIString res = "m";
	ASSERT_EQ(res, PIString(str1));
}

TEST(PIString_Tests, construct_from_pichar_array){
	PIChar str1[3];
	str1[0] = 'n';
	str1[1] = 'e';
	str1[2] = 'w';
	PIString res = "new";
	ASSERT_EQ(res, PIString(str1, 3));
}

TEST(PIString_Tests, construct_from_char_array){
	char str1[] = "good";
	PIString res = "good";
	ASSERT_EQ(res, PIString(str1, 4));
}

TEST(PIString_Tests, construct_from_char_len){
	char str1 = 'n';
	PIString res = "nnn";
	ASSERT_EQ(res, PIString(3, str1));
}

TEST(PIString_Tests, construct_from_pichar_len){
	PIChar str1 = 'n';
	PIString res = "nnnnn";
	ASSERT_EQ(res, PIString(5, str1));
}

TEST(PIString_Tests, operator_assignment){
	PIString str1 = "testing";
	PIString str;
	str = str1;
	ASSERT_EQ(PIString("testing"), str);
}

TEST(PIString_Tests, operator_assignment_move){
	PIString str1 = "testing";
	PIString str;
	str = move(str1);
	ASSERT_EQ(PIString("testing"), str);
	ASSERT_TRUE(str1.isEmpty());
}

TEST(PIString_Tests, operator_symbol){
	PIString str1 = "testing";
	PIChar symbo = "i";
	ASSERT_EQ(symbo, str1[4]);
}

TEST(PIString_Tests, operator_equal_pistring_true){
	PIString str1 = "testing";
	PIString str2 = "testing";
	ASSERT_TRUE(str1 == str2);
}

TEST(PIString_Tests, operator_equal_pistring_false){
	PIString str1 = "tes";
	PIString str2 = "testing";
	ASSERT_FALSE(str1 == str2);
}

TEST(PIString_Tests, operator_equal_pichar_true){
	PIString str1 = "t";
	PIChar str2 = "t";
	ASSERT_TRUE(str1 == str2);
}

TEST(PIString_Tests, operator_equal_pichar_false){
	PIString str1 = "t";
	PIChar str2 = "p";
	ASSERT_FALSE(str1 == str2);
}

TEST(PIString_Tests, operator_equal_cstring_true){
	PIString str1 = "test";
	char str2[] = "test";
	ASSERT_TRUE(str1 == str2);
}

TEST(PIString_Tests, operator_equal_cstring_false){
	PIString str1 = "t";
	char str2[] = "test";
	ASSERT_FALSE(str1 == str2);
}

TEST(PIString_Tests, operator_not_equal_pistring_false){
	PIString str1 = "testing";
	PIString str2 = "testing";
	ASSERT_FALSE(str1 != str2);
}

TEST(PIString_Tests, operator_not_equal_pistring_true){
	PIString str1 = "tes";
	PIString str2 = "testing";
	ASSERT_TRUE(str1 != str2);
}

TEST(PIString_Tests, operator_not_equal_pichar_false){
	PIString str1 = "t";
	PIChar str2 = "t";
	ASSERT_FALSE(str1 != str2);
}

TEST(PIString_Tests, operator_not_equal_pichar_true){
	PIString str1 = "t";
	PIChar str2 = "p";
	ASSERT_TRUE(str1 != str2);
}

TEST(PIString_Tests, operator_not_equal_cstring_false){
	PIString str1 = "test";
	char str2[] = "test";
	ASSERT_FALSE(str1 != str2);
}

TEST(PIString_Tests, operator_not_equal_cstring_true){
	PIString str1 = "t";
	char str2[] = "test";
	ASSERT_TRUE(str1 != str2);
}

TEST(PIString_Tests, operator_less_pistring_true){
	PIString str1 = "testin";
	PIString str2 = "testing";
	ASSERT_TRUE(str1 < str2);
}

TEST(PIString_Tests, operator_less_pistring_false){
	PIString str1 = "testing";
	PIString str2 = "testin";
	ASSERT_FALSE(str1 < str2);
}

TEST(PIString_Tests, operator_less_pistring_false_equal){
	PIString str1 = "testing";
	PIString str2 = "testing";
	ASSERT_FALSE(str1 < str2);
}

TEST(PIString_Tests, operator_less_pichar_true){
	PIString str1 = "a";
	PIChar str2 = "t";
	ASSERT_TRUE(str1 < str2);
}

TEST(PIString_Tests, operator_less_pichar_false){
	PIString str1 = "t";
	PIChar str2 = "a";
	ASSERT_FALSE(str1 < str2);
}

TEST(PIString_Tests, operator_less_pichar_false_equal){
	PIString str1 = "t";
	PIChar str2 = "t";
	ASSERT_FALSE(str1 < str2);
}

TEST(PIString_Tests, operator_less_cstring_true){
	PIString str1 = "a";
	char str2[] = "t";
	ASSERT_TRUE(str1 < str2);
}

TEST(PIString_Tests, operator_less_cstring_false){
	PIString str1 = "t";
	char str2[] = "a";
	ASSERT_FALSE(str1 < str2);
}

TEST(PIString_Tests, operator_less_cstring_false_equal){
	PIString str1 = "t";
	char str2[] = "t";
	ASSERT_FALSE(str1 < str2);
}

TEST(PIString_Tests, operator_more_pistring_true){
	PIString str1 = "testin";
	PIString str2 = "testing";
	ASSERT_TRUE(str2 > str1);
}

TEST(PIString_Tests, operator_more_pistring_false){
	PIString str1 = "testing";
	PIString str2 = "testin";
	ASSERT_FALSE(str2 > str1);
}

TEST(PIString_Tests, operator_more_pistring_false_equal){
	PIString str1 = "testing";
	PIString str2 = "testing";
	ASSERT_FALSE(str1 > str2);
}

TEST(PIString_Tests, operator_more_pichar_true){
	PIString str1 = "t";
	PIChar str2 = "a";
	ASSERT_TRUE(str1 > str2);
}

TEST(PIString_Tests, operator_more_pichar_false){
	PIString str1 = "a";
	PIChar str2 = "t";
	ASSERT_FALSE(str1 > str2);
}

TEST(PIString_Tests, operator_more_pichar_false_equal){
	PIString str1 = "t";
	PIChar str2 = "t";
	ASSERT_FALSE(str1 > str2);
}

TEST(PIString_Tests, operator_more_cstring_true){
	PIString str1 = "t";
	char str2[] = "a";
	ASSERT_TRUE(str1 > str2);
}

TEST(PIString_Tests, operator_more_cstring_false){
	PIString str1 = "a";
	char str2[] = "t";
	ASSERT_FALSE(str1 > str2);
}

TEST(PIString_Tests, operator_more_cstring_false_equal){
	PIString str1 = "t";
	char str2[] = "t";
	ASSERT_FALSE(str1 > str2);
}

TEST(PIString_Tests, operator_less_eq_pistring_true){
	PIString str1 = "testin";
	PIString str2 = "testing";
	ASSERT_TRUE(str1 <= str2);
}