.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.1.1-0.20210319172145-bda8f5cee399/internal/lsp/diff/diff_test.go

   1 // Copyright 2019 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package diff_test
   6
   7 import (
   8         "fmt"
   9         "testing"
  10
  11         "golang.org/x/tools/internal/lsp/diff"
  12         "golang.org/x/tools/internal/lsp/diff/difftest"
  13         "golang.org/x/tools/internal/span"
  14 )
  15
  16 func TestApplyEdits(t *testing.T) {
  17         for _, tc := range difftest.TestCases {
  18                 t.Run(tc.Name, func(t *testing.T) {
  19                         t.Helper()
  20                         if got := diff.ApplyEdits(tc.In, tc.Edits); got != tc.Out {
  21                                 t.Errorf("ApplyEdits edits got %q, want %q", got, tc.Out)
  22                         }
  23                         if tc.LineEdits != nil {
  24                                 if got := diff.ApplyEdits(tc.In, tc.LineEdits); got != tc.Out {
  25                                         t.Errorf("ApplyEdits lineEdits got %q, want %q", got, tc.Out)
  26                                 }
  27                         }
  28                 })
  29         }
  30 }
  31
  32 func TestLineEdits(t *testing.T) {
  33         for _, tc := range difftest.TestCases {
  34                 t.Run(tc.Name, func(t *testing.T) {
  35                         t.Helper()
  36                         // if line edits not specified, it is the same as edits
  37                         edits := tc.LineEdits
  38                         if edits == nil {
  39                                 edits = tc.Edits
  40                         }
  41                         if got := diff.LineEdits(tc.In, tc.Edits); diffEdits(got, edits) {
  42                                 t.Errorf("LineEdits got %q, want %q", got, edits)
  43                         }
  44                 })
  45         }
  46 }
  47
  48 func TestUnified(t *testing.T) {
  49         for _, tc := range difftest.TestCases {
  50                 t.Run(tc.Name, func(t *testing.T) {
  51                         t.Helper()
  52                         unified := fmt.Sprint(diff.ToUnified(difftest.FileA, difftest.FileB, tc.In, tc.Edits))
  53                         if unified != tc.Unified {
  54                                 t.Errorf("edits got diff:\n%v\nexpected:\n%v", unified, tc.Unified)
  55                         }
  56                         if tc.LineEdits != nil {
  57                                 unified := fmt.Sprint(diff.ToUnified(difftest.FileA, difftest.FileB, tc.In, tc.LineEdits))
  58                                 if unified != tc.Unified {
  59                                         t.Errorf("lineEdits got diff:\n%v\nexpected:\n%v", unified, tc.Unified)
  60                                 }
  61                         }
  62                 })
  63         }
  64 }
  65
  66 func diffEdits(got, want []diff.TextEdit) bool {
  67         if len(got) != len(want) {
  68                 return true
  69         }
  70         for i, w := range want {
  71                 g := got[i]
  72                 if span.Compare(w.Span, g.Span) != 0 {
  73                         return true
  74                 }
  75                 if w.NewText != g.NewText {
  76                         return true
  77                 }
  78         }
  79         return false
  80 }