src.elv.sh@v0.21.0-dev.0.20240515223629-06979efb9a2a/pkg/ui/text_test.go (about)

     1  package ui
     2  
     3  import (
     4  	"errors"
     5  	"testing"
     6  
     7  	"src.elv.sh/pkg/eval/vals"
     8  	"src.elv.sh/pkg/tt"
     9  )
    10  
    11  func TestT(t *testing.T) {
    12  	tt.Test(t, T,
    13  		Args("test").Rets(Text{&Segment{Text: "test"}}),
    14  		Args("test red", FgRed).Rets(Text{&Segment{
    15  			Text: "test red", Style: Style{Fg: Red}}}),
    16  		Args("test red", FgRed, Bold).Rets(Text{&Segment{
    17  			Text: "test red", Style: Style{Fg: Red, Bold: true}}}),
    18  	)
    19  }
    20  
    21  func TestConcat(t *testing.T) {
    22  	tt.Test(t, Concat,
    23  		Args().Rets(Text(nil)),
    24  		Args(T("red", FgRed), T("blue", FgBlue), T("green", FgGreen)).
    25  			Rets(Text{red("red"), blue("blue"), green("green")}),
    26  		// Merging adjacent segments with the same style
    27  		Args(T("red", FgRed), T("red", FgRed)).Rets(T("redred", FgRed)),
    28  		// Concatenating texts with multiple segments
    29  		Args(Concat(T("red", FgRed), T("blue", FgBlue)),
    30  			Concat(T("blue", FgBlue), T("green", FgGreen))).
    31  			Rets(Text{red("red"), blue("blueblue"), green("green")}),
    32  		// Concatenating empty texts
    33  		Args(T(""), T("red", FgRed), T("")).Rets(T("red", FgRed)),
    34  	)
    35  }
    36  
    37  func TestTextAsElvishValue(t *testing.T) {
    38  	vals.TestValue(t, T("text")).
    39  		Kind("ui:text").
    40  		Repr("[^styled text]").
    41  		AllKeys("0").
    42  		Index("0", &Segment{Text: "text"}).
    43  		IndexError("a", errors.New("index must be integer"))
    44  
    45  	vals.TestValue(t, Concat(T("red", FgRed), T("blue", FgBlue), T("green", FgGreen))).
    46  		Index("0..2", Concat(T("red", FgRed), T("blue", FgBlue)))
    47  
    48  	vals.TestValue(t, T("text", FgRed)).
    49  		Repr("[^styled (styled-segment text &fg-color=red)]")
    50  	vals.TestValue(t, T("text", Bold)).
    51  		Repr("[^styled (styled-segment text &bold)]")
    52  }
    53  
    54  var (
    55  	text0 = Text{}
    56  	text1 = Text{red("lorem")}
    57  	text2 = Text{red("lorem"), blue("foobar")}
    58  )
    59  
    60  var partitionTests = []*tt.Case{
    61  	Args(text0).Rets([]Text{nil}),
    62  	Args(text1).Rets([]Text{text1}),
    63  	Args(text1, 0).Rets([]Text{nil, text1}),
    64  	Args(text1, 1).Rets([]Text{{red("l")}, {red("orem")}}),
    65  	Args(text1, 5).Rets([]Text{text1, nil}),
    66  	Args(text2).Rets([]Text{text2}),
    67  	Args(text2, 0).Rets([]Text{nil, text2}),
    68  	Args(text2, 1).Rets([]Text{
    69  		{red("l")}, {red("orem"), blue("foobar")}}),
    70  	Args(text2, 2).Rets([]Text{
    71  		{red("lo")}, {red("rem"), blue("foobar")}}),
    72  	Args(text2, 5).Rets([]Text{{red("lorem")}, {blue("foobar")}}),
    73  	Args(text2, 6).Rets([]Text{
    74  		{red("lorem"), blue("f")}, {blue("oobar")}}),
    75  	Args(text2, 11).Rets([]Text{text2, nil}),
    76  
    77  	Args(text1, 1, 2).Rets([]Text{{red("l")}, {red("o")}, {red("rem")}}),
    78  	Args(text1, 1, 2, 3, 4).Rets([]Text{
    79  		{red("l")}, {red("o")}, {red("r")}, {red("e")}, {red("m")}}),
    80  	Args(text2, 2, 4, 6).Rets([]Text{
    81  		{red("lo")}, {red("re")},
    82  		{red("m"), blue("f")}, {blue("oobar")}}),
    83  	Args(text2, 6, 8).Rets([]Text{
    84  		{red("lorem"), blue("f")}, {blue("oo")}, {blue("bar")}}),
    85  }
    86  
    87  func TestPartition(t *testing.T) {
    88  	tt.Test(t, tt.Fn(Text.Partition).Named("Text.Partition"), partitionTests...)
    89  }
    90  
    91  func TestCountRune(t *testing.T) {
    92  	text := Text{red("lorem"), blue("ipsum")}
    93  	tt.Test(t, tt.Fn(Text.CountRune).Named("Text.CountRune"),
    94  		Args(text, 'l').Rets(1),
    95  		Args(text, 'i').Rets(1),
    96  		Args(text, 'm').Rets(2),
    97  		Args(text, '\n').Rets(0),
    98  	)
    99  }
   100  
   101  func TestCountLines(t *testing.T) {
   102  	tt.Test(t, tt.Fn(Text.CountLines).Named("Text.CountLines"),
   103  		Args(Text{red("lorem")}).Rets(1),
   104  		Args(Text{red("lorem"), blue("ipsum")}).Rets(1),
   105  		Args(Text{red("lor\nem"), blue("ipsum")}).Rets(2),
   106  		Args(Text{red("lor\nem"), blue("ip\nsum")}).Rets(3),
   107  	)
   108  }
   109  
   110  func TestSplitByRune(t *testing.T) {
   111  	tt.Test(t, tt.Fn(Text.SplitByRune).Named("Text.SplitByRune"),
   112  		Args(Text{}, '\n').Rets([]Text(nil)),
   113  		Args(Text{red("lorem")}, '\n').Rets([]Text{{red("lorem")}}),
   114  		Args(Text{red("lorem"), blue("ipsum"), red("dolar")}, '\n').Rets(
   115  			[]Text{
   116  				{red("lorem"), blue("ipsum"), red("dolar")},
   117  			}),
   118  		Args(Text{red("lo\nrem")}, '\n').Rets([]Text{
   119  			{red("lo")}, {red("rem")},
   120  		}),
   121  		Args(Text{red("lo\nrem"), blue("ipsum")}, '\n').Rets(
   122  			[]Text{
   123  				{red("lo")},
   124  				{red("rem"), blue("ipsum")},
   125  			}),
   126  		Args(Text{red("lo\nrem"), blue("ip\nsum")}, '\n').Rets(
   127  			[]Text{
   128  				{red("lo")},
   129  				{red("rem"), blue("ip")},
   130  				{blue("sum")},
   131  			}),
   132  		Args(Text{red("lo\nrem"), blue("ip\ns\num"), red("dolar")}, '\n').Rets(
   133  			[]Text{
   134  				{red("lo")},
   135  				{red("rem"), blue("ip")},
   136  				{blue("s")},
   137  				{blue("um"), red("dolar")},
   138  			}),
   139  		Args(Text{red("lorem\n")}, '\n').Rets(
   140  			[]Text{
   141  				{red("lorem")},
   142  				nil,
   143  			}),
   144  	)
   145  }
   146  
   147  func TestTrimWcwidth(t *testing.T) {
   148  	tt.Test(t, tt.Fn(Text.TrimWcwidth).Named("Text.TrimWcwidth"),
   149  		Args(Text{}, 1).Rets(Text(nil)),
   150  		Args(Text{red("lorem")}, 3).Rets(Text{red("lor")}),
   151  		Args(Text{red("lorem"), blue("ipsum")}, 6).Rets(
   152  			Text{red("lorem"), blue("i")}),
   153  		Args(Text{red("你好")}, 3).Rets(Text{red("你")}),
   154  		Args(Text{red("你好"), blue("精灵语"), red("x")}, 7).Rets(
   155  			Text{red("你好"), blue("精")}),
   156  	)
   157  }
   158  
   159  type textVTStringTest struct {
   160  	text         Text
   161  	wantVTString string
   162  }
   163  
   164  func testTextVTString(t *testing.T, tests []textVTStringTest) {
   165  	t.Helper()
   166  	for _, test := range tests {
   167  		vtString := test.text.VTString()
   168  		if vtString != test.wantVTString {
   169  			t.Errorf("got %q, want %q", vtString, test.wantVTString)
   170  		}
   171  	}
   172  }
   173  
   174  func red(s string) *Segment   { return &Segment{Style{Fg: Red}, s} }
   175  func blue(s string) *Segment  { return &Segment{Style{Fg: Blue}, s} }
   176  func green(s string) *Segment { return &Segment{Style{Fg: Green}, s} }