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Source file src/github.com/jedib0t/go-pretty/v6/list/list_test.go

Documentation: github.com/jedib0t/go-pretty/v6/list

     1  package list
     2  
     3  import (
     4  	"testing"
     5  
     6  	"github.com/stretchr/testify/assert"
     7  )
     8  
     9  var (
    10  	testCSSClass = "test-css-class"
    11  	testItem1    = "Game Of Thrones"
    12  	testItem1ML  = testItem1 + "\n\t// George. R. R. Martin"
    13  	testItems2   = []interface{}{"Winter", "Is", "Coming"}
    14  	testItems2ML = []interface{}{"Winter\r\nIs\nComing", "Is", "Coming"}
    15  	testItems3   = []interface{}{"This", "Is", "Known"}
    16  	testItems3ML = []interface{}{"This\nIs\nKnown", "Is", "Known"}
    17  	testItem4    = "The Dark Tower"
    18  	testItem4ML  = testItem4 + "\n\t// Stephen King"
    19  	testItem5    = "The Gunslinger"
    20  )
    21  
    22  type myMockOutputMirror struct {
    23  	mirroredOutput string
    24  }
    25  
    26  func (t *myMockOutputMirror) Write(p []byte) (n int, err error) {
    27  	t.mirroredOutput += string(p)
    28  	return len(p), nil
    29  }
    30  
    31  func TestNewWriter(t *testing.T) {
    32  	lw := NewWriter()
    33  	assert.NotNil(t, lw.Style())
    34  	assert.Equal(t, StyleDefault, *lw.Style())
    35  
    36  	lw.SetStyle(StyleConnectedBold)
    37  	assert.NotNil(t, lw.Style())
    38  	assert.Equal(t, StyleConnectedBold, *lw.Style())
    39  }
    40  
    41  func TestList_AppendItem(t *testing.T) {
    42  	list := List{}
    43  	assert.Equal(t, 0, list.Length())
    44  
    45  	list.AppendItem(testItem1)
    46  	list.AppendItem(testItem1)
    47  	assert.Equal(t, 2, list.Length())
    48  }
    49  
    50  func TestList_AppendItems(t *testing.T) {
    51  	list := List{}
    52  	assert.Equal(t, 0, list.Length())
    53  
    54  	list.AppendItems(testItems2)
    55  	assert.Equal(t, len(testItems2), list.Length())
    56  }
    57  
    58  func TestList_Indent(t *testing.T) {
    59  	list := List{}
    60  	assert.Equal(t, 0, list.level)
    61  
    62  	// should not indent when there is no item in the list
    63  	list.Indent()
    64  	assert.Equal(t, 0, list.level)
    65  
    66  	// should indent with an item in the list
    67  	list.AppendItem(testItem1)
    68  	list.Indent()
    69  	assert.Equal(t, 1, list.level)
    70  
    71  	// should not indent if the previous item will then become "2 levels below"
    72  	list.Indent()
    73  	assert.Equal(t, 1, list.level)
    74  }
    75  
    76  func TestList_Length(t *testing.T) {
    77  	list := List{}
    78  	assert.Equal(t, 0, list.Length())
    79  
    80  	list.AppendItem(testItem1)
    81  	assert.Equal(t, 1, list.Length())
    82  }
    83  
    84  func TestList_Reset(t *testing.T) {
    85  	list := List{}
    86  	list.SetStyle(StyleBulletCircle)
    87  	assert.Equal(t, "", list.Render())
    88  
    89  	list.AppendItem(testItem1)
    90  	assert.Equal(t, "● Game Of Thrones", list.Render())
    91  
    92  	list.Reset()
    93  	assert.Equal(t, "", list.Render())
    94  }
    95  
    96  func TestList_SetHTMLCSSClass(t *testing.T) {
    97  	list := List{}
    98  	assert.Empty(t, list.htmlCSSClass)
    99  
   100  	list.SetHTMLCSSClass(testCSSClass)
   101  	assert.Equal(t, testCSSClass, list.htmlCSSClass)
   102  }
   103  
   104  func TestList_SetOutputMirror(t *testing.T) {
   105  	list := List{}
   106  	list.AppendItem(testItem1)
   107  	expectedOut := "* Game Of Thrones"
   108  	assert.Equal(t, nil, list.outputMirror)
   109  	assert.Equal(t, expectedOut, list.Render())
   110  
   111  	mockOutputMirror := &myMockOutputMirror{}
   112  	list.SetOutputMirror(mockOutputMirror)
   113  	assert.Equal(t, mockOutputMirror, list.outputMirror)
   114  	assert.Equal(t, expectedOut, list.Render())
   115  	assert.Equal(t, expectedOut+"\n", mockOutputMirror.mirroredOutput)
   116  }
   117  
   118  func TestList_SetStyle(t *testing.T) {
   119  	list := List{}
   120  	assert.NotNil(t, list.Style())
   121  	list.AppendItem(testItem1)
   122  	list.Indent()
   123  	list.AppendItems(testItems2)
   124  	expectedOut := `* Game Of Thrones
   125    * Winter
   126    * Is
   127    * Coming`
   128  	assert.Equal(t, expectedOut, list.Render())
   129  
   130  	list.SetStyle(StyleConnectedLight)
   131  	assert.NotNil(t, list.Style())
   132  	assert.Equal(t, &StyleConnectedLight, list.Style())
   133  	expectedOut = `── Game Of Thrones
   134     ├─ Winter
   135     ├─ Is
   136     └─ Coming`
   137  	assert.Equal(t, expectedOut, list.Render())
   138  }
   139  
   140  func TestList_UnIndent(t *testing.T) {
   141  	list := List{level: 2}
   142  
   143  	list.UnIndent()
   144  	assert.Equal(t, 1, list.level)
   145  
   146  	list.UnIndent()
   147  	assert.Equal(t, 0, list.level)
   148  
   149  	list.UnIndent()
   150  	assert.Equal(t, 0, list.level)
   151  }
   152  
   153  func TestList_UnIndentAll(t *testing.T) {
   154  	list := List{level: 3}
   155  
   156  	list.UnIndentAll()
   157  	assert.Equal(t, 0, list.level)
   158  
   159  	// Ensure level is still 0 after 2 consecutive calls
   160  	list.UnIndentAll()
   161  	assert.Equal(t, 0, list.level)
   162  }
   163  

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