src.elv.sh@v0.21.0-dev.0.20240515223629-06979efb9a2a/pkg/ui/style_regions_test.go (about) 1 package ui_test 2 3 import ( 4 "reflect" 5 "testing" 6 7 "src.elv.sh/pkg/diag" 8 "src.elv.sh/pkg/ui" 9 ) 10 11 var styleRegionsTests = []struct { 12 Name string 13 String string 14 Regions []ui.StylingRegion 15 WantText ui.Text 16 }{ 17 { 18 Name: "empty string and regions", 19 String: "", Regions: nil, WantText: nil, 20 }, 21 { 22 Name: "a single region", 23 String: "foobar", 24 Regions: []ui.StylingRegion{ 25 {r(1, 3), ui.FgRed, 0}, 26 }, 27 WantText: ui.Concat(ui.T("f"), ui.T("oo", ui.FgRed), ui.T("bar")), 28 }, 29 30 { 31 Name: "multiple continuous regions", 32 String: "foobar", 33 Regions: []ui.StylingRegion{ 34 {r(1, 3), ui.FgRed, 0}, 35 {r(3, 4), ui.FgGreen, 0}, 36 }, 37 WantText: ui.Concat(ui.T("f"), ui.T("oo", ui.FgRed), ui.T("b", ui.FgGreen), ui.T("ar")), 38 }, 39 40 { 41 Name: "multiple discontinuous regions in wrong order", 42 String: "foobar", 43 Regions: []ui.StylingRegion{ 44 {r(4, 5), ui.FgGreen, 0}, 45 {r(1, 3), ui.FgRed, 0}, 46 }, 47 WantText: ui.Concat(ui.T("f"), ui.T("oo", ui.FgRed), ui.T("b"), ui.T("a", ui.FgGreen), ui.T("r")), 48 }, 49 { 50 Name: "regions with the same starting position but differeng priorities", 51 String: "foobar", 52 Regions: []ui.StylingRegion{ 53 {r(1, 3), ui.FgRed, 0}, 54 {r(1, 2), ui.FgGreen, 1}, 55 }, 56 WantText: ui.Concat(ui.T("f"), ui.T("o", ui.FgGreen), ui.T("obar")), 57 }, 58 { 59 Name: "overlapping regions with different starting positions", 60 String: "foobar", 61 Regions: []ui.StylingRegion{ 62 {r(1, 3), ui.FgRed, 0}, 63 {r(2, 4), ui.FgGreen, 0}, 64 }, 65 WantText: ui.Concat(ui.T("f"), ui.T("oo", ui.FgRed), ui.T("bar")), 66 }, 67 } 68 69 func r(a, b int) diag.Ranging { return diag.Ranging{From: a, To: b} } 70 71 func TestStyleRegions(t *testing.T) { 72 for _, test := range styleRegionsTests { 73 text := ui.StyleRegions(test.String, test.Regions) 74 if !reflect.DeepEqual(text, test.WantText) { 75 t.Errorf("got %v, want %v", text, test.WantText) 76 } 77 } 78 }