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package ansi
import (
"image/color"
"testing"
)
func TestRGBAToHex(t *testing.T) {
cases := []struct {
r, g, b, a uint32
want uint32
}{
{0, 0, 255, 0xffff, 0x0000ff},
{255, 255, 255, 0xffff, 0xffffff},
{255, 0, 0, 0xffff, 0xff0000},
}
for _, c := range cases {
gotR, gotG, gotB, _ := TrueColor(c.want).RGBA()
gotR /= 256
gotG /= 256
gotB /= 256
if gotR != c.r || gotG != c.g || gotB != c.b {
t.Errorf("RGBA() of TrueColor(%06x): got (%v, %v, %v), want (%v, %v, %v)",
c.want, gotR, gotG, gotB, c.r, c.g, c.b)
}
}
}
func TestColorToHexString(t *testing.T) {
cases := []struct {
color color.Color
want string
}{
{TrueColor(0x0000ff), "#0000ff"},
{TrueColor(0xffffff), "#ffffff"},
{TrueColor(0xff0000), "#ff0000"},
}
for _, c := range cases {
got := colorToHexString(c.color)
if got != c.want {
t.Errorf("colorToHexString(%v): got %v, want %v", c.color, got, c.want)
}
}
}
func TestAnsiToRGB(t *testing.T) {
cases := []struct {
ansi uint32
r, g, b uint32
}{
{0, 0, 0, 0}, // black
{1, 128, 0, 0}, // red
{255, 238, 238, 238}, // highest ANSI color (grayscale)
}
for _, c := range cases {
gotR, gotG, gotB := ansiToRGB(c.ansi)
if gotR != c.r || gotG != c.g || gotB != c.b {
t.Errorf("ansiToRGB(%v): got (%v, %v, %v), want (%v, %v, %v)",
c.ansi, gotR, gotG, gotB, c.r, c.g, c.b)
}
}
}
func TestHexToRGB(t *testing.T) {
cases := []struct {
hex uint32
r, g, b uint32
}{
{0x0000FF, 0, 0, 255}, // blue
{0xFFFFFF, 255, 255, 255}, // white
{0xFF0000, 255, 0, 0}, // red
}
for _, c := range cases {
gotR, gotG, gotB := hexToRGB(c.hex)
if gotR != c.r || gotG != c.g || gotB != c.b {
t.Errorf("hexToRGB(%v): got (%v, %v, %v), want (%v, %v, %v)",
c.hex, gotR, gotG, gotB, c.r, c.g, c.b)
}
}
}
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