.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/internal/lsp/diff/diff_test.go

   1 package diff_test
   2
   3 import (
   4         "fmt"
   5         "testing"
   6
   7         "golang.org/x/tools/internal/lsp/diff"
   8         "golang.org/x/tools/internal/lsp/diff/difftest"
   9         "golang.org/x/tools/internal/span"
  10 )
  11
  12 func TestApplyEdits(t *testing.T) {
  13         for _, tc := range difftest.TestCases {
  14                 t.Run(tc.Name, func(t *testing.T) {
  15                         t.Helper()
  16                         if got := diff.ApplyEdits(tc.In, tc.Edits); got != tc.Out {
  17                                 t.Errorf("ApplyEdits edits got %q, want %q", got, tc.Out)
  18                         }
  19                         if tc.LineEdits != nil {
  20                                 if got := diff.ApplyEdits(tc.In, tc.LineEdits); got != tc.Out {
  21                                         t.Errorf("ApplyEdits lineEdits got %q, want %q", got, tc.Out)
  22                                 }
  23                         }
  24                 })
  25         }
  26 }
  27
  28 func TestLineEdits(t *testing.T) {
  29         for _, tc := range difftest.TestCases {
  30                 t.Run(tc.Name, func(t *testing.T) {
  31                         t.Helper()
  32                         // if line edits not specified, it is the same as edits
  33                         edits := tc.LineEdits
  34                         if edits == nil {
  35                                 edits = tc.Edits
  36                         }
  37                         if got := diff.LineEdits(tc.In, tc.Edits); diffEdits(got, edits) {
  38                                 t.Errorf("LineEdits got %q, want %q", got, edits)
  39                         }
  40                 })
  41         }
  42 }
  43
  44 func TestUnified(t *testing.T) {
  45         for _, tc := range difftest.TestCases {
  46                 t.Run(tc.Name, func(t *testing.T) {
  47                         t.Helper()
  48                         unified := fmt.Sprint(diff.ToUnified(difftest.FileA, difftest.FileB, tc.In, tc.Edits))
  49                         if unified != tc.Unified {
  50                                 t.Errorf("edits got diff:\n%v\nexpected:\n%v", unified, tc.Unified)
  51                         }
  52                         if tc.LineEdits != nil {
  53                                 unified := fmt.Sprint(diff.ToUnified(difftest.FileA, difftest.FileB, tc.In, tc.LineEdits))
  54                                 if unified != tc.Unified {
  55                                         t.Errorf("lineEdits got diff:\n%v\nexpected:\n%v", unified, tc.Unified)
  56                                 }
  57                         }
  58                 })
  59         }
  60 }
  61
  62 func diffEdits(got, want []diff.TextEdit) bool {
  63         if len(got) != len(want) {
  64                 return true
  65         }
  66         for i, w := range want {
  67                 g := got[i]
  68                 if span.Compare(w.Span, g.Span) != 0 {
  69                         return true
  70                 }
  71                 if w.NewText != g.NewText {
  72                         return true
  73                 }
  74         }
  75         return false
  76 }