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// Copyright 2018 The TCell Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use file except in compliance with the License.
// You may obtain a copy of the license at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package tcell
import (
"testing"
)
func TestColorValues(t *testing.T) {
var values = []struct {
color Color
hex int32
}{
{ColorRed, 0x00FF0000},
{ColorGreen, 0x00008000},
{ColorLime, 0x0000FF00},
{ColorBlue, 0x000000FF},
{ColorBlack, 0x00000000},
{ColorWhite, 0x00FFFFFF},
{ColorSilver, 0x00C0C0C0},
}
for _, tc := range values {
if tc.color.Hex() != tc.hex {
t.Errorf("Color: %x != %x", tc.color.Hex(), tc.hex)
}
}
}
func TestColorFitting(t *testing.T) {
pal := []Color{}
for i := 0; i < 255; i++ {
pal = append(pal, Color(i))
}
// Exact color fitting on ANSI colors
for i := 0; i < 7; i++ {
if FindColor(Color(i), pal[:8]) != Color(i) {
t.Errorf("Color ANSI fit fail at %d", i)
}
}
// Grey is closest to Silver
if FindColor(Color(8), pal[:8]) != Color(7) {
t.Errorf("Grey does not fit to silver")
}
// Color fitting of upper 8 colors.
for i := 9; i < 16; i++ {
if FindColor(Color(i), pal[:8]) != Color(i%8) {
t.Errorf("Color fit fail at %d", i)
}
}
// Imperfect fit
if FindColor(ColorOrangeRed, pal[:16]) != ColorRed ||
FindColor(ColorAliceBlue, pal[:16]) != ColorWhite ||
FindColor(ColorPink, pal) != Color217 ||
FindColor(ColorSienna, pal) != Color173 ||
FindColor(GetColor("#00FD00"), pal) != ColorLime {
t.Errorf("Imperfect color fit")
}
}
func TestColorNameLookup(t *testing.T) {
var values = []struct {
name string
color Color
}{
{"#FF0000", ColorRed},
{"black", ColorBlack},
{"orange", ColorOrange},
}
for _, v := range values {
c := GetColor(v.name)
if c.Hex() != v.color.Hex() {
t.Errorf("Wrong color for %v: %v", v.name, c.Hex())
}
}
}
func TestColorRGB(t *testing.T) {
r, g, b := GetColor("#112233").RGB()
if r != 0x11 || g != 0x22 || b != 0x33 {
t.Errorf("RGB wrong (%x, %x, %x)", r, g, b)
}
}
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