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package ui_test
import (
"reflect"
"testing"
"src.elv.sh/pkg/diag"
"src.elv.sh/pkg/ui"
)
var styleRegionsTests = []struct {
Name string
String string
Regions []ui.StylingRegion
WantText ui.Text
}{
{
Name: "empty string and regions",
String: "", Regions: nil, WantText: nil,
},
{
Name: "a single region",
String: "foobar",
Regions: []ui.StylingRegion{
{r(1, 3), ui.FgRed, 0},
},
WantText: ui.Concat(ui.T("f"), ui.T("oo", ui.FgRed), ui.T("bar")),
},
{
Name: "multiple continuous regions",
String: "foobar",
Regions: []ui.StylingRegion{
{r(1, 3), ui.FgRed, 0},
{r(3, 4), ui.FgGreen, 0},
},
WantText: ui.Concat(ui.T("f"), ui.T("oo", ui.FgRed), ui.T("b", ui.FgGreen), ui.T("ar")),
},
{
Name: "multiple discontinuous regions in wrong order",
String: "foobar",
Regions: []ui.StylingRegion{
{r(4, 5), ui.FgGreen, 0},
{r(1, 3), ui.FgRed, 0},
},
WantText: ui.Concat(ui.T("f"), ui.T("oo", ui.FgRed), ui.T("b"), ui.T("a", ui.FgGreen), ui.T("r")),
},
{
Name: "regions with the same starting position but differeng priorities",
String: "foobar",
Regions: []ui.StylingRegion{
{r(1, 3), ui.FgRed, 0},
{r(1, 2), ui.FgGreen, 1},
},
WantText: ui.Concat(ui.T("f"), ui.T("o", ui.FgGreen), ui.T("obar")),
},
{
Name: "overlapping regions with different starting positions",
String: "foobar",
Regions: []ui.StylingRegion{
{r(1, 3), ui.FgRed, 0},
{r(2, 4), ui.FgGreen, 0},
},
WantText: ui.Concat(ui.T("f"), ui.T("oo", ui.FgRed), ui.T("bar")),
},
}
func r(a, b int) diag.Ranging { return diag.Ranging{From: a, To: b} }
func TestStyleRegions(t *testing.T) {
for _, test := range styleRegionsTests {
text := ui.StyleRegions(test.String, test.Regions)
if !reflect.DeepEqual(text, test.WantText) {
t.Errorf("got %v, want %v", text, test.WantText)
}
}
}
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