mirror of https://github.com/golang/go.git
81 lines
2.0 KiB
Go
81 lines
2.0 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package diff_test
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import (
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"fmt"
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"testing"
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"golang.org/x/tools/internal/lsp/diff"
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"golang.org/x/tools/internal/lsp/diff/difftest"
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"golang.org/x/tools/internal/span"
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)
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func TestApplyEdits(t *testing.T) {
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for _, tc := range difftest.TestCases {
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t.Run(tc.Name, func(t *testing.T) {
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t.Helper()
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if got := diff.ApplyEdits(tc.In, tc.Edits); got != tc.Out {
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t.Errorf("ApplyEdits edits got %q, want %q", got, tc.Out)
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}
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if tc.LineEdits != nil {
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if got := diff.ApplyEdits(tc.In, tc.LineEdits); got != tc.Out {
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t.Errorf("ApplyEdits lineEdits got %q, want %q", got, tc.Out)
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}
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}
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})
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}
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}
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func TestLineEdits(t *testing.T) {
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for _, tc := range difftest.TestCases {
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t.Run(tc.Name, func(t *testing.T) {
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t.Helper()
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// if line edits not specified, it is the same as edits
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edits := tc.LineEdits
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if edits == nil {
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edits = tc.Edits
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}
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if got := diff.LineEdits(tc.In, tc.Edits); diffEdits(got, edits) {
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t.Errorf("LineEdits got %q, want %q", got, edits)
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}
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})
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}
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}
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func TestUnified(t *testing.T) {
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for _, tc := range difftest.TestCases {
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t.Run(tc.Name, func(t *testing.T) {
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t.Helper()
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unified := fmt.Sprint(diff.ToUnified(difftest.FileA, difftest.FileB, tc.In, tc.Edits))
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if unified != tc.Unified {
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t.Errorf("edits got diff:\n%v\nexpected:\n%v", unified, tc.Unified)
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}
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if tc.LineEdits != nil {
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unified := fmt.Sprint(diff.ToUnified(difftest.FileA, difftest.FileB, tc.In, tc.LineEdits))
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if unified != tc.Unified {
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t.Errorf("lineEdits got diff:\n%v\nexpected:\n%v", unified, tc.Unified)
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}
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}
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})
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}
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}
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func diffEdits(got, want []diff.TextEdit) bool {
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if len(got) != len(want) {
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return true
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}
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for i, w := range want {
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g := got[i]
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if span.Compare(w.Span, g.Span) != 0 {
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return true
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}
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if w.NewText != g.NewText {
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return true
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}
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}
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return false
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}
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