+++ /dev/null
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package source_test
-
-import (
- "context"
- "fmt"
- "os"
- "os/exec"
- "path/filepath"
- "sort"
- "strings"
- "testing"
-
- "golang.org/x/tools/internal/lsp/cache"
- "golang.org/x/tools/internal/lsp/diff"
- "golang.org/x/tools/internal/lsp/diff/myers"
- "golang.org/x/tools/internal/lsp/fuzzy"
- "golang.org/x/tools/internal/lsp/protocol"
- "golang.org/x/tools/internal/lsp/source"
- "golang.org/x/tools/internal/lsp/source/completion"
- "golang.org/x/tools/internal/lsp/tests"
- "golang.org/x/tools/internal/span"
- "golang.org/x/tools/internal/testenv"
- errors "golang.org/x/xerrors"
-)
-
-func TestMain(m *testing.M) {
- testenv.ExitIfSmallMachine()
- os.Exit(m.Run())
-}
-
-func TestSource(t *testing.T) {
- tests.RunTests(t, "../testdata", true, testSource)
-}
-
-type runner struct {
- snapshot source.Snapshot
- view source.View
- data *tests.Data
- ctx context.Context
-}
-
-func testSource(t *testing.T, datum *tests.Data) {
- ctx := tests.Context(t)
-
- cache := cache.New(ctx, nil)
- session := cache.NewSession(ctx)
- options := source.DefaultOptions().Clone()
- tests.DefaultOptions(options)
- options.SetEnvSlice(datum.Config.Env)
- view, _, release, err := session.NewView(ctx, "source_test", span.URIFromPath(datum.Config.Dir), options)
- release()
- if err != nil {
- t.Fatal(err)
- }
- defer view.Shutdown(ctx)
-
- // Enable type error analyses for tests.
- // TODO(golang/go#38212): Delete this once they are enabled by default.
- tests.EnableAllAnalyzers(view, options)
- view.SetOptions(ctx, options)
- var modifications []source.FileModification
- for filename, content := range datum.Config.Overlay {
- kind := source.DetectLanguage("", filename)
- if kind != source.Go {
- continue
- }
- modifications = append(modifications, source.FileModification{
- URI: span.URIFromPath(filename),
- Action: source.Open,
- Version: -1,
- Text: content,
- LanguageID: "go",
- })
- }
- if err := session.ModifyFiles(ctx, modifications); err != nil {
- t.Fatal(err)
- }
- snapshot, release := view.Snapshot(ctx)
- defer release()
- r := &runner{
- view: view,
- snapshot: snapshot,
- data: datum,
- ctx: ctx,
- }
- tests.Run(t, r, datum)
-}
-
-func (r *runner) CallHierarchy(t *testing.T, spn span.Span, expectedCalls *tests.CallHierarchyResult) {
- mapper, err := r.data.Mapper(spn.URI())
- if err != nil {
- t.Fatal(err)
- }
- loc, err := mapper.Location(spn)
- if err != nil {
- t.Fatalf("failed for %v: %v", spn, err)
- }
- fh, err := r.snapshot.GetFile(r.ctx, spn.URI())
- if err != nil {
- t.Fatal(err)
- }
-
- items, err := source.PrepareCallHierarchy(r.ctx, r.snapshot, fh, loc.Range.Start)
- if err != nil {
- t.Fatal(err)
- }
- if len(items) == 0 {
- t.Fatalf("expected call hierarchy item to be returned for identifier at %v\n", loc.Range)
- }
-
- callLocation := protocol.Location{
- URI: items[0].URI,
- Range: items[0].Range,
- }
- if callLocation != loc {
- t.Fatalf("expected source.PrepareCallHierarchy to return identifier at %v but got %v\n", loc, callLocation)
- }
-
- incomingCalls, err := source.IncomingCalls(r.ctx, r.snapshot, fh, loc.Range.Start)
- if err != nil {
- t.Error(err)
- }
- var incomingCallItems []protocol.CallHierarchyItem
- for _, item := range incomingCalls {
- incomingCallItems = append(incomingCallItems, item.From)
- }
- msg := tests.DiffCallHierarchyItems(incomingCallItems, expectedCalls.IncomingCalls)
- if msg != "" {
- t.Error(fmt.Sprintf("incoming calls differ: %s", msg))
- }
-
- outgoingCalls, err := source.OutgoingCalls(r.ctx, r.snapshot, fh, loc.Range.Start)
- if err != nil {
- t.Error(err)
- }
- var outgoingCallItems []protocol.CallHierarchyItem
- for _, item := range outgoingCalls {
- outgoingCallItems = append(outgoingCallItems, item.To)
- }
- msg = tests.DiffCallHierarchyItems(outgoingCallItems, expectedCalls.OutgoingCalls)
- if msg != "" {
- t.Error(fmt.Sprintf("outgoing calls differ: %s", msg))
- }
-}
-
-func (r *runner) Diagnostics(t *testing.T, uri span.URI, want []*source.Diagnostic) {
- fileID, got, err := source.FileDiagnostics(r.ctx, r.snapshot, uri)
- if err != nil {
- t.Fatal(err)
- }
- // A special case to test that there are no diagnostics for a file.
- if len(want) == 1 && want[0].Source == "no_diagnostics" {
- if len(got) != 0 {
- t.Errorf("expected no diagnostics for %s, got %v", uri, got)
- }
- return
- }
- if diff := tests.DiffDiagnostics(fileID.URI, want, got); diff != "" {
- t.Error(diff)
- }
-}
-
-func (r *runner) Completion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
- var want []protocol.CompletionItem
- for _, pos := range test.CompletionItems {
- want = append(want, tests.ToProtocolCompletionItem(*items[pos]))
- }
- _, got := r.callCompletion(t, src, func(opts *source.Options) {
- opts.Matcher = source.CaseInsensitive
- opts.DeepCompletion = false
- opts.CompleteUnimported = false
- opts.InsertTextFormat = protocol.SnippetTextFormat
- if !strings.Contains(string(src.URI()), "literal") {
- opts.LiteralCompletions = false
- }
- })
- got = tests.FilterBuiltins(src, got)
- if diff := tests.DiffCompletionItems(want, got); diff != "" {
- t.Errorf("%s: %s", src, diff)
- }
-}
-
-func (r *runner) CompletionSnippet(t *testing.T, src span.Span, expected tests.CompletionSnippet, placeholders bool, items tests.CompletionItems) {
- _, list := r.callCompletion(t, src, func(opts *source.Options) {
- opts.UsePlaceholders = placeholders
- opts.DeepCompletion = true
- opts.CompleteUnimported = false
- })
- got := tests.FindItem(list, *items[expected.CompletionItem])
- want := expected.PlainSnippet
- if placeholders {
- want = expected.PlaceholderSnippet
- }
- if diff := tests.DiffSnippets(want, got); diff != "" {
- t.Errorf("%s: %s", src, diff)
- }
-}
-
-func (r *runner) UnimportedCompletion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
- var want []protocol.CompletionItem
- for _, pos := range test.CompletionItems {
- want = append(want, tests.ToProtocolCompletionItem(*items[pos]))
- }
- _, got := r.callCompletion(t, src, func(opts *source.Options) {})
- got = tests.FilterBuiltins(src, got)
- if diff := tests.CheckCompletionOrder(want, got, false); diff != "" {
- t.Errorf("%s: %s", src, diff)
- }
-}
-
-func (r *runner) DeepCompletion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
- var want []protocol.CompletionItem
- for _, pos := range test.CompletionItems {
- want = append(want, tests.ToProtocolCompletionItem(*items[pos]))
- }
- prefix, list := r.callCompletion(t, src, func(opts *source.Options) {
- opts.DeepCompletion = true
- opts.Matcher = source.CaseInsensitive
- opts.CompleteUnimported = false
- })
- list = tests.FilterBuiltins(src, list)
- fuzzyMatcher := fuzzy.NewMatcher(prefix)
- var got []protocol.CompletionItem
- for _, item := range list {
- if fuzzyMatcher.Score(item.Label) <= 0 {
- continue
- }
- got = append(got, item)
- }
- if msg := tests.DiffCompletionItems(want, got); msg != "" {
- t.Errorf("%s: %s", src, msg)
- }
-}
-
-func (r *runner) FuzzyCompletion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
- var want []protocol.CompletionItem
- for _, pos := range test.CompletionItems {
- want = append(want, tests.ToProtocolCompletionItem(*items[pos]))
- }
- _, got := r.callCompletion(t, src, func(opts *source.Options) {
- opts.DeepCompletion = true
- opts.Matcher = source.Fuzzy
- opts.CompleteUnimported = false
- })
- got = tests.FilterBuiltins(src, got)
- if msg := tests.DiffCompletionItems(want, got); msg != "" {
- t.Errorf("%s: %s", src, msg)
- }
-}
-
-func (r *runner) CaseSensitiveCompletion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
- var want []protocol.CompletionItem
- for _, pos := range test.CompletionItems {
- want = append(want, tests.ToProtocolCompletionItem(*items[pos]))
- }
- _, list := r.callCompletion(t, src, func(opts *source.Options) {
- opts.Matcher = source.CaseSensitive
- opts.CompleteUnimported = false
- })
- list = tests.FilterBuiltins(src, list)
- if diff := tests.DiffCompletionItems(want, list); diff != "" {
- t.Errorf("%s: %s", src, diff)
- }
-}
-
-func (r *runner) RankCompletion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
- var want []protocol.CompletionItem
- for _, pos := range test.CompletionItems {
- want = append(want, tests.ToProtocolCompletionItem(*items[pos]))
- }
- _, got := r.callCompletion(t, src, func(opts *source.Options) {
- opts.DeepCompletion = true
- opts.Matcher = source.Fuzzy
- })
- if msg := tests.CheckCompletionOrder(want, got, true); msg != "" {
- t.Errorf("%s: %s", src, msg)
- }
-}
-
-func (r *runner) callCompletion(t *testing.T, src span.Span, options func(*source.Options)) (string, []protocol.CompletionItem) {
- fh, err := r.snapshot.GetFile(r.ctx, src.URI())
- if err != nil {
- t.Fatal(err)
- }
- original := r.view.Options()
- modified := original.Clone()
- options(modified)
- newView, err := r.view.SetOptions(r.ctx, modified)
- if newView != r.view {
- t.Fatalf("options change unexpectedly created new view")
- }
- if err != nil {
- t.Fatal(err)
- }
- defer r.view.SetOptions(r.ctx, original)
-
- list, surrounding, err := completion.Completion(r.ctx, r.snapshot, fh, protocol.Position{
- Line: float64(src.Start().Line() - 1),
- Character: float64(src.Start().Column() - 1),
- }, protocol.CompletionContext{})
- if err != nil && !errors.As(err, &completion.ErrIsDefinition{}) {
- t.Fatalf("failed for %v: %v", src, err)
- }
- var prefix string
- if surrounding != nil {
- prefix = strings.ToLower(surrounding.Prefix())
- }
-
- var numDeepCompletionsSeen int
- var items []completion.CompletionItem
- // Apply deep completion filtering.
- for _, item := range list {
- if item.Depth > 0 {
- if !modified.DeepCompletion {
- continue
- }
- if numDeepCompletionsSeen >= completion.MaxDeepCompletions {
- continue
- }
- numDeepCompletionsSeen++
- }
- items = append(items, item)
- }
- return prefix, tests.ToProtocolCompletionItems(items)
-}
-
-func (r *runner) FoldingRanges(t *testing.T, spn span.Span) {
- uri := spn.URI()
-
- fh, err := r.snapshot.GetFile(r.ctx, spn.URI())
- if err != nil {
- t.Fatal(err)
- }
- data, err := fh.Read()
- if err != nil {
- t.Error(err)
- return
- }
-
- // Test all folding ranges.
- ranges, err := source.FoldingRange(r.ctx, r.snapshot, fh, false)
- if err != nil {
- t.Error(err)
- return
- }
- r.foldingRanges(t, "foldingRange", uri, string(data), ranges)
-
- // Test folding ranges with lineFoldingOnly
- ranges, err = source.FoldingRange(r.ctx, r.snapshot, fh, true)
- if err != nil {
- t.Error(err)
- return
- }
- r.foldingRanges(t, "foldingRange-lineFolding", uri, string(data), ranges)
-}
-
-func (r *runner) foldingRanges(t *testing.T, prefix string, uri span.URI, data string, ranges []*source.FoldingRangeInfo) {
- t.Helper()
- // Fold all ranges.
- nonOverlapping := nonOverlappingRanges(t, ranges)
- for i, rngs := range nonOverlapping {
- got, err := foldRanges(string(data), rngs)
- if err != nil {
- t.Error(err)
- continue
- }
- tag := fmt.Sprintf("%s-%d", prefix, i)
- want := string(r.data.Golden(tag, uri.Filename(), func() ([]byte, error) {
- return []byte(got), nil
- }))
-
- if want != got {
- t.Errorf("%s: foldingRanges failed for %s, expected:\n%v\ngot:\n%v", tag, uri.Filename(), want, got)
- }
- }
-
- // Filter by kind.
- kinds := []protocol.FoldingRangeKind{protocol.Imports, protocol.Comment}
- for _, kind := range kinds {
- var kindOnly []*source.FoldingRangeInfo
- for _, fRng := range ranges {
- if fRng.Kind == kind {
- kindOnly = append(kindOnly, fRng)
- }
- }
-
- nonOverlapping := nonOverlappingRanges(t, kindOnly)
- for i, rngs := range nonOverlapping {
- got, err := foldRanges(string(data), rngs)
- if err != nil {
- t.Error(err)
- continue
- }
- tag := fmt.Sprintf("%s-%s-%d", prefix, kind, i)
- want := string(r.data.Golden(tag, uri.Filename(), func() ([]byte, error) {
- return []byte(got), nil
- }))
-
- if want != got {
- t.Errorf("%s: failed for %s, expected:\n%v\ngot:\n%v", tag, uri.Filename(), want, got)
- }
- }
-
- }
-}
-
-func nonOverlappingRanges(t *testing.T, ranges []*source.FoldingRangeInfo) (res [][]*source.FoldingRangeInfo) {
- for _, fRng := range ranges {
- setNum := len(res)
- for i := 0; i < len(res); i++ {
- canInsert := true
- for _, rng := range res[i] {
- if conflict(t, rng, fRng) {
- canInsert = false
- break
- }
- }
- if canInsert {
- setNum = i
- break
- }
- }
- if setNum == len(res) {
- res = append(res, []*source.FoldingRangeInfo{})
- }
- res[setNum] = append(res[setNum], fRng)
- }
- return res
-}
-
-func conflict(t *testing.T, a, b *source.FoldingRangeInfo) bool {
- arng, err := a.Range()
- if err != nil {
- t.Fatal(err)
- }
- brng, err := b.Range()
- if err != nil {
- t.Fatal(err)
- }
- // a start position is <= b start positions
- return protocol.ComparePosition(arng.Start, brng.Start) <= 0 && protocol.ComparePosition(arng.End, brng.Start) > 0
-}
-
-func foldRanges(contents string, ranges []*source.FoldingRangeInfo) (string, error) {
- foldedText := "<>"
- res := contents
- // Apply the folds from the end of the file forward
- // to preserve the offsets.
- for i := len(ranges) - 1; i >= 0; i-- {
- fRange := ranges[i]
- spn, err := fRange.Span()
- if err != nil {
- return "", err
- }
- start := spn.Start().Offset()
- end := spn.End().Offset()
-
- tmp := res[0:start] + foldedText
- res = tmp + res[end:]
- }
- return res, nil
-}
-
-func (r *runner) Format(t *testing.T, spn span.Span) {
- gofmted := string(r.data.Golden("gofmt", spn.URI().Filename(), func() ([]byte, error) {
- cmd := exec.Command("gofmt", spn.URI().Filename())
- out, _ := cmd.Output() // ignore error, sometimes we have intentionally ungofmt-able files
- return out, nil
- }))
- fh, err := r.snapshot.GetFile(r.ctx, spn.URI())
- if err != nil {
- t.Fatal(err)
- }
- edits, err := source.Format(r.ctx, r.snapshot, fh)
- if err != nil {
- if gofmted != "" {
- t.Error(err)
- }
- return
- }
- data, err := fh.Read()
- if err != nil {
- t.Fatal(err)
- }
- m, err := r.data.Mapper(spn.URI())
- if err != nil {
- t.Fatal(err)
- }
- diffEdits, err := source.FromProtocolEdits(m, edits)
- if err != nil {
- t.Error(err)
- }
- got := diff.ApplyEdits(string(data), diffEdits)
- if gofmted != got {
- t.Errorf("format failed for %s, expected:\n%v\ngot:\n%v", spn.URI().Filename(), gofmted, got)
- }
-}
-
-func (r *runner) SemanticTokens(t *testing.T, spn span.Span) {
- t.Skip("nothing to test in source")
-}
-
-func (r *runner) Import(t *testing.T, spn span.Span) {
- fh, err := r.snapshot.GetFile(r.ctx, spn.URI())
- if err != nil {
- t.Fatal(err)
- }
- edits, _, err := source.AllImportsFixes(r.ctx, r.snapshot, fh)
- if err != nil {
- t.Error(err)
- }
- data, err := fh.Read()
- if err != nil {
- t.Fatal(err)
- }
- m, err := r.data.Mapper(fh.URI())
- if err != nil {
- t.Fatal(err)
- }
- diffEdits, err := source.FromProtocolEdits(m, edits)
- if err != nil {
- t.Error(err)
- }
- got := diff.ApplyEdits(string(data), diffEdits)
- want := string(r.data.Golden("goimports", spn.URI().Filename(), func() ([]byte, error) {
- return []byte(got), nil
- }))
- if want != got {
- d := myers.ComputeEdits(spn.URI(), want, got)
- t.Errorf("import failed for %s: %s", spn.URI().Filename(), diff.ToUnified("want", "got", want, d))
- }
-}
-
-func (r *runner) Definition(t *testing.T, spn span.Span, d tests.Definition) {
- _, srcRng, err := spanToRange(r.data, d.Src)
- if err != nil {
- t.Fatal(err)
- }
- fh, err := r.snapshot.GetFile(r.ctx, spn.URI())
- if err != nil {
- t.Fatal(err)
- }
- ident, err := source.Identifier(r.ctx, r.snapshot, fh, srcRng.Start)
- if err != nil {
- t.Fatalf("failed for %v: %v", d.Src, err)
- }
- h, err := source.HoverIdentifier(r.ctx, ident)
- if err != nil {
- t.Fatalf("failed for %v: %v", d.Src, err)
- }
- hover, err := source.FormatHover(h, r.view.Options())
- if err != nil {
- t.Fatal(err)
- }
- rng, err := ident.Declaration.MappedRange[0].Range()
- if err != nil {
- t.Fatal(err)
- }
- if d.IsType {
- rng, err = ident.Type.Range()
- if err != nil {
- t.Fatal(err)
- }
- hover = ""
- }
- didSomething := false
- if hover != "" {
- didSomething = true
- tag := fmt.Sprintf("%s-hover", d.Name)
- expectHover := string(r.data.Golden(tag, d.Src.URI().Filename(), func() ([]byte, error) {
- return []byte(hover), nil
- }))
- if hover != expectHover {
- t.Errorf("hover for %s failed:\n%s", d.Src, tests.Diff(expectHover, hover))
- }
- }
- if !d.OnlyHover {
- didSomething = true
- if _, defRng, err := spanToRange(r.data, d.Def); err != nil {
- t.Fatal(err)
- } else if rng != defRng {
- t.Errorf("for %v got %v want %v", d.Src, rng, defRng)
- }
- }
- if !didSomething {
- t.Errorf("no tests ran for %s", d.Src.URI())
- }
-}
-
-func (r *runner) Implementation(t *testing.T, spn span.Span, impls []span.Span) {
- sm, err := r.data.Mapper(spn.URI())
- if err != nil {
- t.Fatal(err)
- }
- loc, err := sm.Location(spn)
- if err != nil {
- t.Fatalf("failed for %v: %v", spn, err)
- }
- fh, err := r.snapshot.GetFile(r.ctx, spn.URI())
- if err != nil {
- t.Fatal(err)
- }
- locs, err := source.Implementation(r.ctx, r.snapshot, fh, loc.Range.Start)
- if err != nil {
- t.Fatalf("failed for %v: %v", spn, err)
- }
- if len(locs) != len(impls) {
- t.Fatalf("got %d locations for implementation, expected %d", len(locs), len(impls))
- }
- var results []span.Span
- for i := range locs {
- locURI := locs[i].URI.SpanURI()
- lm, err := r.data.Mapper(locURI)
- if err != nil {
- t.Fatal(err)
- }
- imp, err := lm.Span(locs[i])
- if err != nil {
- t.Fatalf("failed for %v: %v", locs[i], err)
- }
- results = append(results, imp)
- }
- // Sort results and expected to make tests deterministic.
- sort.SliceStable(results, func(i, j int) bool {
- return span.Compare(results[i], results[j]) == -1
- })
- sort.SliceStable(impls, func(i, j int) bool {
- return span.Compare(impls[i], impls[j]) == -1
- })
- for i := range results {
- if results[i] != impls[i] {
- t.Errorf("for %dth implementation of %v got %v want %v", i, spn, results[i], impls[i])
- }
- }
-}
-
-func (r *runner) Highlight(t *testing.T, src span.Span, locations []span.Span) {
- ctx := r.ctx
- m, srcRng, err := spanToRange(r.data, src)
- if err != nil {
- t.Fatal(err)
- }
- fh, err := r.snapshot.GetFile(r.ctx, src.URI())
- if err != nil {
- t.Fatal(err)
- }
- highlights, err := source.Highlight(ctx, r.snapshot, fh, srcRng.Start)
- if err != nil {
- t.Errorf("highlight failed for %s: %v", src.URI(), err)
- }
- if len(highlights) != len(locations) {
- t.Fatalf("got %d highlights for highlight at %v:%v:%v, expected %d", len(highlights), src.URI().Filename(), src.Start().Line(), src.Start().Column(), len(locations))
- }
- // Check to make sure highlights have a valid range.
- var results []span.Span
- for i := range highlights {
- h, err := m.RangeSpan(highlights[i])
- if err != nil {
- t.Fatalf("failed for %v: %v", highlights[i], err)
- }
- results = append(results, h)
- }
- // Sort results to make tests deterministic since DocumentHighlight uses a map.
- sort.SliceStable(results, func(i, j int) bool {
- return span.Compare(results[i], results[j]) == -1
- })
- // Check to make sure all the expected highlights are found.
- for i := range results {
- if results[i] != locations[i] {
- t.Errorf("want %v, got %v\n", locations[i], results[i])
- }
- }
-}
-
-func (r *runner) References(t *testing.T, src span.Span, itemList []span.Span) {
- ctx := r.ctx
- _, srcRng, err := spanToRange(r.data, src)
- if err != nil {
- t.Fatal(err)
- }
- snapshot := r.snapshot
- fh, err := snapshot.GetFile(r.ctx, src.URI())
- if err != nil {
- t.Fatal(err)
- }
- for _, includeDeclaration := range []bool{true, false} {
- t.Run(fmt.Sprintf("refs-declaration-%v", includeDeclaration), func(t *testing.T) {
- want := make(map[span.Span]bool)
- for i, pos := range itemList {
- // We don't want the first result if we aren't including the declaration.
- if i == 0 && !includeDeclaration {
- continue
- }
- want[pos] = true
- }
- refs, err := source.References(ctx, snapshot, fh, srcRng.Start, includeDeclaration)
- if err != nil {
- t.Fatalf("failed for %s: %v", src, err)
- }
- got := make(map[span.Span]bool)
- for _, refInfo := range refs {
- refSpan, err := refInfo.Span()
- if err != nil {
- t.Fatal(err)
- }
- got[refSpan] = true
- }
- if len(got) != len(want) {
- t.Errorf("references failed: different lengths got %v want %v", len(got), len(want))
- }
- for spn := range got {
- if !want[spn] {
- t.Errorf("references failed: incorrect references got %v want locations %v", got, want)
- }
- }
- })
- }
-}
-
-func (r *runner) Rename(t *testing.T, spn span.Span, newText string) {
- tag := fmt.Sprintf("%s-rename", newText)
-
- _, srcRng, err := spanToRange(r.data, spn)
- if err != nil {
- t.Fatal(err)
- }
- fh, err := r.snapshot.GetFile(r.ctx, spn.URI())
- if err != nil {
- t.Fatal(err)
- }
- changes, err := source.Rename(r.ctx, r.snapshot, fh, srcRng.Start, newText)
- if err != nil {
- renamed := string(r.data.Golden(tag, spn.URI().Filename(), func() ([]byte, error) {
- return []byte(err.Error()), nil
- }))
- if err.Error() != renamed {
- t.Errorf("rename failed for %s, expected:\n%v\ngot:\n%v\n", newText, renamed, err)
- }
- return
- }
-
- var res []string
- for editURI, edits := range changes {
- fh, err := r.snapshot.GetFile(r.ctx, editURI)
- if err != nil {
- t.Fatal(err)
- }
- data, err := fh.Read()
- if err != nil {
- t.Fatal(err)
- }
- m, err := r.data.Mapper(fh.URI())
- if err != nil {
- t.Fatal(err)
- }
- diffEdits, err := source.FromProtocolEdits(m, edits)
- if err != nil {
- t.Fatal(err)
- }
- contents := applyEdits(string(data), diffEdits)
- if len(changes) > 1 {
- filename := filepath.Base(editURI.Filename())
- contents = fmt.Sprintf("%s:\n%s", filename, contents)
- }
- res = append(res, contents)
- }
-
- // Sort on filename
- sort.Strings(res)
-
- var got string
- for i, val := range res {
- if i != 0 {
- got += "\n"
- }
- got += val
- }
-
- renamed := string(r.data.Golden(tag, spn.URI().Filename(), func() ([]byte, error) {
- return []byte(got), nil
- }))
-
- if renamed != got {
- t.Errorf("rename failed for %s, expected:\n%v\ngot:\n%v", newText, renamed, got)
- }
-}
-
-func applyEdits(contents string, edits []diff.TextEdit) string {
- res := contents
-
- // Apply the edits from the end of the file forward
- // to preserve the offsets
- for i := len(edits) - 1; i >= 0; i-- {
- edit := edits[i]
- start := edit.Span.Start().Offset()
- end := edit.Span.End().Offset()
- tmp := res[0:start] + edit.NewText
- res = tmp + res[end:]
- }
- return res
-}
-
-func (r *runner) PrepareRename(t *testing.T, src span.Span, want *source.PrepareItem) {
- _, srcRng, err := spanToRange(r.data, src)
- if err != nil {
- t.Fatal(err)
- }
- // Find the identifier at the position.
- fh, err := r.snapshot.GetFile(r.ctx, src.URI())
- if err != nil {
- t.Fatal(err)
- }
- item, err := source.PrepareRename(r.ctx, r.snapshot, fh, srcRng.Start)
- if err != nil {
- if want.Text != "" { // expected an ident.
- t.Errorf("prepare rename failed for %v: got error: %v", src, err)
- }
- return
- }
- if item == nil {
- if want.Text != "" {
- t.Errorf("prepare rename failed for %v: got nil", src)
- }
- return
- }
- if want.Text == "" {
- t.Errorf("prepare rename failed for %v: expected nil, got %v", src, item)
- return
- }
- if item.Range.Start == item.Range.End {
- // Special case for 0-length ranges. Marks can't specify a 0-length range,
- // so just compare the start.
- if item.Range.Start != want.Range.Start {
- t.Errorf("prepare rename failed: incorrect point, got %v want %v", item.Range.Start, want.Range.Start)
- }
- } else {
- if protocol.CompareRange(item.Range, want.Range) != 0 {
- t.Errorf("prepare rename failed: incorrect range got %v want %v", item.Range, want.Range)
- }
- }
-}
-
-func (r *runner) Symbols(t *testing.T, uri span.URI, expectedSymbols []protocol.DocumentSymbol) {
- fh, err := r.snapshot.GetFile(r.ctx, uri)
- if err != nil {
- t.Fatal(err)
- }
- symbols, err := source.DocumentSymbols(r.ctx, r.snapshot, fh)
- if err != nil {
- t.Errorf("symbols failed for %s: %v", uri, err)
- }
- if len(symbols) != len(expectedSymbols) {
- t.Errorf("want %d top-level symbols in %v, got %d", len(expectedSymbols), uri, len(symbols))
- return
- }
- if diff := tests.DiffSymbols(t, uri, expectedSymbols, symbols); diff != "" {
- t.Error(diff)
- }
-}
-
-func (r *runner) WorkspaceSymbols(t *testing.T, query string, expectedSymbols []protocol.SymbolInformation, dirs map[string]struct{}) {
- r.callWorkspaceSymbols(t, query, source.SymbolCaseInsensitive, dirs, expectedSymbols)
-}
-
-func (r *runner) FuzzyWorkspaceSymbols(t *testing.T, query string, expectedSymbols []protocol.SymbolInformation, dirs map[string]struct{}) {
- r.callWorkspaceSymbols(t, query, source.SymbolFuzzy, dirs, expectedSymbols)
-}
-
-func (r *runner) CaseSensitiveWorkspaceSymbols(t *testing.T, query string, expectedSymbols []protocol.SymbolInformation, dirs map[string]struct{}) {
- r.callWorkspaceSymbols(t, query, source.SymbolCaseSensitive, dirs, expectedSymbols)
-}
-
-func (r *runner) callWorkspaceSymbols(t *testing.T, query string, matcher source.SymbolMatcher, dirs map[string]struct{}, expectedSymbols []protocol.SymbolInformation) {
- t.Helper()
- got, err := source.WorkspaceSymbols(r.ctx, matcher, source.PackageQualifiedSymbols, []source.View{r.view}, query)
- if err != nil {
- t.Fatal(err)
- }
- got = tests.FilterWorkspaceSymbols(got, dirs)
- if diff := tests.DiffWorkspaceSymbols(expectedSymbols, got); diff != "" {
- t.Error(diff)
- }
-}
-
-func (r *runner) SignatureHelp(t *testing.T, spn span.Span, want *protocol.SignatureHelp) {
- _, rng, err := spanToRange(r.data, spn)
- if err != nil {
- t.Fatal(err)
- }
- fh, err := r.snapshot.GetFile(r.ctx, spn.URI())
- if err != nil {
- t.Fatal(err)
- }
- gotSignature, gotActiveParameter, err := source.SignatureHelp(r.ctx, r.snapshot, fh, rng.Start)
- if err != nil {
- // Only fail if we got an error we did not expect.
- if want != nil {
- t.Fatalf("failed for %v: %v", spn, err)
- }
- return
- }
- if gotSignature == nil {
- if want != nil {
- t.Fatalf("got nil signature, but expected %v", want)
- }
- return
- }
- got := &protocol.SignatureHelp{
- Signatures: []protocol.SignatureInformation{*gotSignature},
- ActiveParameter: float64(gotActiveParameter),
- }
- if diff := tests.DiffSignatures(spn, want, got); diff != "" {
- t.Error(diff)
- }
-}
-
-// These are pure LSP features, no source level functionality to be tested.
-func (r *runner) Link(t *testing.T, uri span.URI, wantLinks []tests.Link) {}
-func (r *runner) SuggestedFix(t *testing.T, spn span.Span, actionKinds []string) {}
-func (r *runner) FunctionExtraction(t *testing.T, start span.Span, end span.Span) {}
-func (r *runner) CodeLens(t *testing.T, uri span.URI, want []protocol.CodeLens) {}
-
-func spanToRange(data *tests.Data, spn span.Span) (*protocol.ColumnMapper, protocol.Range, error) {
- m, err := data.Mapper(spn.URI())
- if err != nil {
- return nil, protocol.Range{}, err
- }
- srcRng, err := m.Range(spn)
- if err != nil {
- return nil, protocol.Range{}, err
- }
- return m, srcRng, nil
-}
projects / dotfiles / .git / blobdiff