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// Copyright 2019 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 lsp
import (
"strings"
"testing"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/lsp/tests"
"golang.org/x/tools/internal/span"
)
func (r *runner) Completion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
got := r.callCompletion(t, src, func(opts *source.Options) {
opts.DeepCompletion = false
opts.Matcher = source.CaseInsensitive
opts.CompleteUnimported = false
opts.InsertTextFormat = protocol.SnippetTextFormat
opts.LiteralCompletions = strings.Contains(string(src.URI()), "literal")
opts.ExperimentalPostfixCompletions = strings.Contains(string(src.URI()), "postfix")
})
got = tests.FilterBuiltins(src, got)
want := expected(t, test, items)
if diff := tests.DiffCompletionItems(want, got); diff != "" {
t.Errorf("%s", 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.Matcher = source.Fuzzy
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", diff)
}
}
func (r *runner) UnimportedCompletion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
got := r.callCompletion(t, src, func(opts *source.Options) {})
got = tests.FilterBuiltins(src, got)
want := expected(t, test, items)
if diff := tests.CheckCompletionOrder(want, got, false); diff != "" {
t.Errorf("%s", diff)
}
}
func (r *runner) DeepCompletion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
got := r.callCompletion(t, src, func(opts *source.Options) {
opts.DeepCompletion = true
opts.Matcher = source.CaseInsensitive
opts.CompleteUnimported = false
})
got = tests.FilterBuiltins(src, got)
want := expected(t, test, items)
if msg := tests.DiffCompletionItems(want, got); msg != "" {
t.Errorf("%s", msg)
}
}
func (r *runner) FuzzyCompletion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
got := r.callCompletion(t, src, func(opts *source.Options) {
opts.DeepCompletion = true
opts.Matcher = source.Fuzzy
opts.CompleteUnimported = false
})
got = tests.FilterBuiltins(src, got)
want := expected(t, test, items)
if msg := tests.DiffCompletionItems(want, got); msg != "" {
t.Errorf("%s", msg)
}
}
func (r *runner) CaseSensitiveCompletion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
got := r.callCompletion(t, src, func(opts *source.Options) {
opts.Matcher = source.CaseSensitive
opts.CompleteUnimported = false
})
got = tests.FilterBuiltins(src, got)
want := expected(t, test, items)
if msg := tests.DiffCompletionItems(want, got); msg != "" {
t.Errorf("%s", msg)
}
}
func (r *runner) RankCompletion(t *testing.T, src span.Span, test tests.Completion, items tests.CompletionItems) {
got := r.callCompletion(t, src, func(opts *source.Options) {
opts.DeepCompletion = true
opts.Matcher = source.Fuzzy
opts.CompleteUnimported = false
opts.LiteralCompletions = true
opts.ExperimentalPostfixCompletions = true
})
want := expected(t, test, items)
if msg := tests.CheckCompletionOrder(want, got, true); msg != "" {
t.Errorf("%s", msg)
}
}
func expected(t *testing.T, test tests.Completion, items tests.CompletionItems) []protocol.CompletionItem {
t.Helper()
var want []protocol.CompletionItem
for _, pos := range test.CompletionItems {
item := items[pos]
want = append(want, tests.ToProtocolCompletionItem(*item))
}
return want
}
func (r *runner) callCompletion(t *testing.T, src span.Span, options func(*source.Options)) []protocol.CompletionItem {
t.Helper()
view, err := r.server.session.ViewOf(src.URI())
if err != nil {
t.Fatal(err)
}
original := view.Options()
modified := view.Options().Clone()
options(modified)
view, err = view.SetOptions(r.ctx, modified)
if err != nil {
t.Error(err)
return nil
}
defer view.SetOptions(r.ctx, original)
list, err := r.server.Completion(r.ctx, &protocol.CompletionParams{
TextDocumentPositionParams: protocol.TextDocumentPositionParams{
TextDocument: protocol.TextDocumentIdentifier{
URI: protocol.URIFromSpanURI(src.URI()),
},
Position: protocol.Position{
Line: uint32(src.Start().Line() - 1),
Character: uint32(src.Start().Column() - 1),
},
},
})
if err != nil {
t.Fatal(err)
}
return list.Items
}
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