tests

package
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 Go to latest Published: May 11, 2021 License: BSD-3-Clause Imports: 28 Imported by: 0

README

Testing

LSP has "marker tests" defined in internal/lsp/testdata, as well as traditional tests.

Marker tests

Marker tests have a standard input file, like internal/lsp/testdata/foo/bar.go, and some may have a corresponding golden file, like internal/lsp/testdata/foo/bar.go.golden. The former is the "input" and the latter is the expected output.

Each input file contains annotations like //@suggestedfix("}", "refactor.rewrite"). These annotations are interpreted by test runners to perform certain actions. The expected output after those actions is encoded in the golden file.

When tests are run, each annotation results in a new subtest, which is encoded in the golden file with a heading like,

-- suggestedfix_bar_11_21 --
// expected contents go here
-- suggestedfix_bar_13_20 --
// expected contents go here

The format of these headings vary: they are defined by the Golden function for each annotation. In the case above, the format is: annotation name, file name, annotation line location, annotation character location.

So, if internal/lsp/testdata/foo/bar.go has three suggestedfix annotations, the golden file should have three headers with suggestedfix_bar_xx_yy headings.

To see a list of all available annotations, see the exported "expectations" in tests.go.

To run marker tests,

cd /path/to/tools

# The marker tests are located in "internal/lsp", "internal/lsp/cmd, and
# "internal/lsp/source".
go test ./internal/lsp/...

There are quite a lot of marker tests, so to run one individually, pass the test path and heading into a -run argument:

cd /path/to/tools
go test ./internal/lsp/... -v -run TestLSP/Modules/SuggestedFix/bar_11_21

Resetting marker tests

Sometimes, a change is made to lsp that requires a change to multiple golden files. When this happens, you can run,

cd /path/to/tools
./internal/lsp/reset_golden.sh

Documentation

Overview

Package tests exports functionality to be used across a variety of gopls tests.

Index

Constants

View Source 
const (
	// Default runs the standard completion tests.
	CompletionDefault = CompletionTestType(iota)

	// Unimported tests the autocompletion of unimported packages.
	CompletionUnimported

	// Deep tests deep completion.
	CompletionDeep

	// Fuzzy tests deep completion and fuzzy matching.
	CompletionFuzzy

	// CaseSensitive tests case sensitive completion.
	CompletionCaseSensitive

	// CompletionRank candidates in test must be valid and in the right relative order.
	CompletionRank
)
View Source 
const (
	// Default runs the standard workspace symbols tests.
	WorkspaceSymbolsDefault = WorkspaceSymbolsTestType(iota)

	// Fuzzy tests workspace symbols with fuzzy matching.
	WorkspaceSymbolsFuzzy

	// CaseSensitive tests workspace symbols with case sensitive.
	WorkspaceSymbolsCaseSensitive
)

Variables

View Source 
var UpdateGolden = flag.Bool("golden", false, "Update golden files")

Functions

func CheckCompletionOrder 

func CheckCompletionOrder(want, got []protocol.CompletionItem, strictScores bool) string

func Context 

func Context(t testing.TB) context.Context

func CopyFolderToTempDir 

func CopyFolderToTempDir(folder string) (string, error)

func DefaultOptions 

func DefaultOptions(o *source.Options)

func Diff 

func Diff(t *testing.T, want, got string) string

func DiffCallHierarchyItems 

func DiffCallHierarchyItems(gotCalls []protocol.CallHierarchyItem, expectedCalls []protocol.CallHierarchyItem) string

DiffCallHierarchyItems returns the diff between expected and actual call locations for incoming/outgoing call hierarchies

func DiffCodeLens 

func DiffCodeLens(uri span.URI, want, got []protocol.CodeLens) string

func DiffCompletionItems 

func DiffCompletionItems(want, got []protocol.CompletionItem) string

DiffCompletionItems prints the diff between expected and actual completion test results.

func DiffDiagnostics 

func DiffDiagnostics(uri span.URI, want, got []*source.Diagnostic) string

DiffDiagnostics prints the diff between expected and actual diagnostics test results. 

func DiffLinks(mapper *protocol.ColumnMapper, wantLinks []Link, gotLinks []protocol.DocumentLink) string

DiffLinks takes the links we got and checks if they are located within the source or a Note. If the link is within a Note, the link is removed. Returns an diff comment if there are differences and empty string if no diffs.

func DiffSignatures 

func DiffSignatures(spn span.Span, want, got *protocol.SignatureHelp) (string, error)

func DiffSnippets 

func DiffSnippets(want string, got *protocol.CompletionItem) string

func DiffSymbols 

func DiffSymbols(t *testing.T, uri span.URI, want, got []protocol.DocumentSymbol) string

DiffSymbols prints the diff between expected and actual symbols test results.

func EnableAllAnalyzers 

func EnableAllAnalyzers(view source.View, opts *source.Options)

func FilterBuiltins 

func FilterBuiltins(src span.Span, items []protocol.CompletionItem) []protocol.CompletionItem

func FindItem 

func FindItem(list []protocol.CompletionItem, want completion.CompletionItem) *protocol.CompletionItem

func Normalize 

func Normalize(s string, normalizers []Normalizer) string

Normalize replaces all paths present in s with just the fragment portion this is used to make golden files not depend on the temporary paths of the files

func NormalizePrefix 

func NormalizePrefix(s string, normalizers []Normalizer) string

NormalizePrefix normalizes a single path at the front of the input string.

func Run 

func Run(t *testing.T, tests Tests, data *Data)

func RunTests 

func RunTests(t *testing.T, dataDir string, includeMultiModule bool, f func(*testing.T, *Data))

func SpanName 

func SpanName(spn span.Span) string

func ToProtocolCompletionItem 

func ToProtocolCompletionItem(item completion.CompletionItem) protocol.CompletionItem

func ToProtocolCompletionItems 

func ToProtocolCompletionItems(items []completion.CompletionItem) []protocol.CompletionItem

func WorkspaceSymbolsString 

func WorkspaceSymbolsString(ctx context.Context, data *Data, queryURI span.URI, symbols []protocol.SymbolInformation) (string, error)

func WorkspaceSymbolsTestTypeToMatcher 

func WorkspaceSymbolsTestTypeToMatcher(typ WorkspaceSymbolsTestType) source.SymbolMatcher

Types

type CallHierarchy 

type CallHierarchy map[span.Span]*CallHierarchyResult

type CallHierarchyResult 

type CallHierarchyResult struct {
	IncomingCalls, OutgoingCalls []protocol.CallHierarchyItem
}

type CaseSensitiveCompletions 

type CaseSensitiveCompletions map[span.Span][]Completion

type CodeLens 

type CodeLens map[span.URI][]protocol.CodeLens

type Completion 

type Completion struct {
	CompletionItems []token.Pos
}

type CompletionItems 

type CompletionItems map[token.Pos]*completion.CompletionItem

type CompletionSnippet 

type CompletionSnippet struct {
	CompletionItem     token.Pos
	PlainSnippet       string
	PlaceholderSnippet string
}

type CompletionSnippets 

type CompletionSnippets map[span.Span][]CompletionSnippet

type CompletionTestType 

type CompletionTestType int

type Completions 

type Completions map[span.Span][]Completion

type Data 

type Data struct {
	Config                   packages.Config
	Exported                 *packagestest.Exported
	CallHierarchy            CallHierarchy
	CodeLens                 CodeLens
	Diagnostics              Diagnostics
	CompletionItems          CompletionItems
	Completions              Completions
	CompletionSnippets       CompletionSnippets
	UnimportedCompletions    UnimportedCompletions
	DeepCompletions          DeepCompletions
	FuzzyCompletions         FuzzyCompletions
	CaseSensitiveCompletions CaseSensitiveCompletions
	RankCompletions          RankCompletions
	FoldingRanges            FoldingRanges
	Formats                  Formats
	Imports                  Imports
	SemanticTokens           SemanticTokens
	SuggestedFixes           SuggestedFixes
	FunctionExtractions      FunctionExtractions
	Definitions              Definitions
	Implementations          Implementations
	Highlights               Highlights
	References               References
	Renames                  Renames
	PrepareRenames           PrepareRenames
	Symbols                  Symbols

	WorkspaceSymbols WorkspaceSymbols
	Signatures       Signatures
	Links            Links

	ModfileFlagAvailable bool
	// contains filtered or unexported fields
}

func (*Data) Golden 

func (data *Data) Golden(tag string, target string, update func() ([]byte, error)) []byte

func (*Data) Mapper 

func (data *Data) Mapper(uri span.URI) (*protocol.ColumnMapper, error)

type DeepCompletions 

type DeepCompletions map[span.Span][]Completion

type Definition 

type Definition struct {
	Name      string
	IsType    bool
	OnlyHover bool
	Src, Def  span.Span
}

type Definitions 

type Definitions map[span.Span]Definition

type Diagnostics 

type Diagnostics map[span.URI][]*source.Diagnostic

type FoldingRanges 

type FoldingRanges []span.Span

type Formats 

type Formats []span.Span

type FunctionExtractions 

type FunctionExtractions map[span.Span]span.Span

type FuzzyCompletions 

type FuzzyCompletions map[span.Span][]Completion

type Golden 

type Golden struct {
	Filename string
	Archive  *txtar.Archive
	Modified bool
}

type Highlights 

type Highlights map[span.Span][]span.Span

type Implementations 

type Implementations map[span.Span][]span.Span

type Imports 

type Imports []span.Span
type Link struct {
	Src          span.Span
	Target       string
	NotePosition token.Position
}
type Links map[span.URI][]Link

type Normalizer 

type Normalizer struct {
	// contains filtered or unexported fields
}

func CollectNormalizers 

func CollectNormalizers(exported *packagestest.Exported) []Normalizer

type PrepareRenames 

type PrepareRenames map[span.Span]*source.PrepareItem

type RankCompletions 

type RankCompletions map[span.Span][]Completion

type References 

type References map[span.Span][]span.Span

type Renames 

type Renames map[span.Span]string

type SemanticTokens 

type SemanticTokens []span.Span

type Signatures 

type Signatures map[span.Span]*protocol.SignatureHelp

type SuggestedFixes 

type SuggestedFixes map[span.Span][]string

type SymbolInformation 

type SymbolInformation map[span.Span]protocol.SymbolInformation

type Symbols 

type Symbols map[span.URI][]protocol.DocumentSymbol

type SymbolsChildren 

type SymbolsChildren map[string][]protocol.DocumentSymbol

type Tests 

type Tests interface {
	CallHierarchy(*testing.T, span.Span, *CallHierarchyResult)
	CodeLens(*testing.T, span.URI, []protocol.CodeLens)
	Diagnostics(*testing.T, span.URI, []*source.Diagnostic)
	Completion(*testing.T, span.Span, Completion, CompletionItems)
	CompletionSnippet(*testing.T, span.Span, CompletionSnippet, bool, CompletionItems)
	UnimportedCompletion(*testing.T, span.Span, Completion, CompletionItems)
	DeepCompletion(*testing.T, span.Span, Completion, CompletionItems)
	FuzzyCompletion(*testing.T, span.Span, Completion, CompletionItems)
	CaseSensitiveCompletion(*testing.T, span.Span, Completion, CompletionItems)
	RankCompletion(*testing.T, span.Span, Completion, CompletionItems)
	FoldingRanges(*testing.T, span.Span)
	Format(*testing.T, span.Span)
	Import(*testing.T, span.Span)
	SemanticTokens(*testing.T, span.Span)
	SuggestedFix(*testing.T, span.Span, []string, int)
	FunctionExtraction(*testing.T, span.Span, span.Span)
	Definition(*testing.T, span.Span, Definition)
	Implementation(*testing.T, span.Span, []span.Span)
	Highlight(*testing.T, span.Span, []span.Span)
	References(*testing.T, span.Span, []span.Span)
	Rename(*testing.T, span.Span, string)
	PrepareRename(*testing.T, span.Span, *source.PrepareItem)
	Symbols(*testing.T, span.URI, []protocol.DocumentSymbol)
	WorkspaceSymbols(*testing.T, span.URI, string, WorkspaceSymbolsTestType)
	SignatureHelp(*testing.T, span.Span, *protocol.SignatureHelp)
	Link(*testing.T, span.URI, []Link)
}

type UnimportedCompletions 

type UnimportedCompletions map[span.Span][]Completion

type WorkspaceSymbols 

type WorkspaceSymbols map[WorkspaceSymbolsTestType]map[span.URI][]string

type WorkspaceSymbolsTestType 

type WorkspaceSymbolsTestType int

Source Files

View all Source files

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