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internal/lsp: using a non line based applyEdits in tests

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Change-Id: Ibbef0a74b53a95d0b08fae6e8ef24be8b0f78273
Reviewed-on: https://go-review.googlesource.com/c/tools/+/166881
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
This commit is contained in:
Ian Cottrell 2019-03-11 16:41:00 -04:00
parent de4a0b36f1
commit 6eedde5c1d
1 changed files with 24 additions and 24 deletions
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48
internal/lsp/lsp_test.go
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@ -18,7 +18,6 @@ import (
"golang.org/x/tools/go/packages/packagestest"
"golang.org/x/tools/internal/lsp/cache"
"golang.org/x/tools/internal/lsp/diff"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
)
@ -378,30 +377,11 @@ func (f formats) test(t *testing.T, s *server) {
if err != nil {
t.Error(err)
}
var ops []*diff.Op
for _, edit := range edits {
start := int(edit.Range.Start.Line)
end := int(edit.Range.End.Line)
if start == end && edit.Range.End.Character > 1 {
end++
}
if edit.NewText == "" { // deletion
ops = append(ops, &diff.Op{
Kind: diff.Delete,
I1: start,
I2: end,
})
} else if edit.Range.Start == edit.Range.End { // insertion
ops = append(ops, &diff.Op{
Kind: diff.Insert,
Content: edit.NewText,
I1: start,
I2: end,
})
}
buf, err := applyEdits(f.GetContent(context.Background()), edits)
if err != nil {
t.Error(err)
}
split := strings.SplitAfter(string(f.GetContent(context.Background())), "\n")
got := strings.Join(diff.ApplyEdits(split, ops), "")
got := string(buf)
if gofmted != got {
t.Errorf("format failed for %s: expected '%v', got '%v'", filename, gofmted, got)
}
@ -477,3 +457,23 @@ func TestBytesOffset(t *testing.T) {
}
}
}
func applyEdits(content []byte, edits []protocol.TextEdit) ([]byte, error) {
prev := 0
result := make([]byte, 0, len(content))
for _, edit := range edits {
start := bytesOffset(content, edit.Range.Start)
end := bytesOffset(content, edit.Range.End)
if start > prev {
result = append(result, content[prev:start]...)
}
if len(edit.NewText) > 0 {
result = append(result, []byte(edit.NewText)...)
}
prev = end
}
if prev < len(content) {
result = append(result, content[prev:]...)
}
return result, nil
}