adds display package

2023-12-21 10:06:48 -05:00
parent 31895881a9
commit 5343f26ad9
28 changed files with 2412 additions and 0 deletions
@@ -0,0 +1,49 @@
+package fonts
+
+import (
+	"fmt"
+	"image/color"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestFont_ToColor(t *testing.T) {
+	tests := []struct {
+		name           string
+		font           Font
+		char           string
+		color          color.RGBA
+		wantMappedChar [][]color.RGBA
+		wantError      error
+	}{
+		{
+			name:      "it should error if char mapping doesn't exist",
+			font:      Font{},
+			char:      "not found",
+			wantError: fmt.Errorf("%w: %s", ErrCharNotFound, "not found"),
+		},
+		{
+			name:  "it should produce a color mapped character",
+			font:  Face5x4,
+			char:  "1",
+			color: White,
+			wantMappedChar: [][]color.RGBA{
+				{{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}},
+				{{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}},
+				{{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}},
+				{{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}},
+				{{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}},
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			mappedChar, err := test.font.ToColor(test.char, test.color)
+
+			assert.Equal(t, test.wantMappedChar, mappedChar)
+			assert.Equal(t, test.wantError, err)
+		})
+	}
+}