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82 lines
1.7 KiB
C++
82 lines
1.7 KiB
C++
#include <string>
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#include <cstdlib>
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#include <clocale>
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#include "main.h"
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class InternalsTest : public :: testing::Test {
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protected:
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void SetUp() override {
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setlocale(LC_ALL, "");
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}
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};
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TEST_F(InternalsTest, RGBtoANSIWhite) {
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unsigned r, g, b;
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for(r = 250 ; r < 256 ; ++r){
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g = b = r;
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EXPECT_EQ(15, rgb_quantize_256(r, g, b));
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}
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}
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TEST_F(InternalsTest, RGBtoANSIBlack) {
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unsigned r, g, b;
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for(r = 0 ; r < 10 ; ++r){
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g = b = r;
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EXPECT_EQ(0, rgb_quantize_256(r, g, b));
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}
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}
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TEST_F(InternalsTest, RGBtoANSIGrey) {
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unsigned r, g, b;
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for(r = 10 ; r < 244 ; ++r){
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g = b = r;
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EXPECT_EQ(231 + (r * 5) / 49, rgb_quantize_256(r, g, b));
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}
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}
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// Pure reds are either 0 (black), or 16 plus 36 * [0..5].
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TEST_F(InternalsTest, RGBtoANSIRed) {
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unsigned r, g, b;
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g = b = 0x0;
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for(r = 0 ; r < 256 ; ++r){
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int c256 = rgb_quantize_256(r, g, b);
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if(r < 8){
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EXPECT_EQ(0, c256);
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}else{
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EXPECT_LT(15, c256);
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EXPECT_EQ(16, c256 % 36);
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}
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}
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}
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// Pure greens are either 0 (black), or 16 plus 6 * [0..5].
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TEST_F(InternalsTest, RGBtoANSIGreen) {
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unsigned r, g, b;
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r = b = 0x0;
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for(g = 0 ; g < 256 ; ++g){
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int c256 = rgb_quantize_256(r, g, b);
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EXPECT_GT(48, c256);
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if(g < 8){
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EXPECT_EQ(0, c256);
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}else{
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EXPECT_LT(15, c256);
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EXPECT_EQ(4, c256 % 6);
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}
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}
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}
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// Pure blues are either 0 (black), or one of the first 6 colors [16..22].
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TEST_F(InternalsTest, RGBtoANSIBlue) {
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unsigned r, g, b;
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r = g = 0x0;
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for(b = 0 ; b < 256 ; ++b){
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int c256 = rgb_quantize_256(r, g, b);
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EXPECT_GT(22, c256);
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if(b < 8){
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EXPECT_EQ(0, c256);
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}else{
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EXPECT_LT(15, c256);
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}
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}
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}
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