50 lines
1.5 KiB
Go
50 lines
1.5 KiB
Go
package fonts
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import (
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"fmt"
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"image/color"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestFont_ToColor(t *testing.T) {
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tests := []struct {
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name string
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font Font
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char string
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color color.RGBA
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wantMappedChar [][]color.RGBA
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wantError error
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}{
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{
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name: "it should error if char mapping doesn't exist",
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font: Font{},
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char: "not found",
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wantError: fmt.Errorf("%w: %s", ErrCharNotFound, "not found"),
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},
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{
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name: "it should produce a color mapped character",
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font: Face5x4,
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char: "1",
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color: White,
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wantMappedChar: [][]color.RGBA{
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{{R: 255, G: 255, B: 255, A: 0}, {R: 255, G: 255, B: 255, A: 255}, {R: 255, G: 255, B: 255, A: 0}, {R: 255, G: 255, B: 255, A: 0}},
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{{R: 255, G: 255, B: 255, A: 0}, {R: 255, G: 255, B: 255, A: 255}, {R: 255, G: 255, B: 255, A: 0}, {R: 255, G: 255, B: 255, A: 0}},
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{{R: 255, G: 255, B: 255, A: 0}, {R: 255, G: 255, B: 255, A: 255}, {R: 255, G: 255, B: 255, A: 0}, {R: 255, G: 255, B: 255, A: 0}},
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{{R: 255, G: 255, B: 255, A: 0}, {R: 255, G: 255, B: 255, A: 255}, {R: 255, G: 255, B: 255, A: 0}, {R: 255, G: 255, B: 255, A: 0}},
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{{R: 255, G: 255, B: 255, A: 0}, {R: 255, G: 255, B: 255, A: 255}, {R: 255, G: 255, B: 255, A: 0}, {R: 255, G: 255, B: 255, A: 0}},
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},
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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mappedChar, err := test.font.ToColor(test.char, test.color)
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assert.Equal(t, test.wantMappedChar, mappedChar)
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assert.Equal(t, test.wantError, err)
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})
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}
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}
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