Merge pull request #20 from pjbgf/improve-tests

Refactoring and removing check.v1

.github/workflows/test.yml

@@ -9,18 +9,22 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: [1.19.x, 1.20.x, 1.21.x]
+        go-version: [1.20.x, 1.21.x, 1.22.x]
         platform: [ubuntu-latest, macos-latest, windows-latest]
 
     runs-on: ${{ matrix.platform }}
     steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
     - name: Install Go
       uses: actions/setup-go@v5
       with:
-        go-version: ${{ matrix.go-version }}   
+        go-version: ${{ matrix.go-version }}
 
-    - name: Checkout code
-      uses: actions/checkout@v4
+    - name: Validate
+      if: matrix.platform == 'ubuntu-latest'
+      run: make validate
 
     - name: Test
       run: make test

.gitignore

@@ -0,0 +1 @@
+build/

.golangci.yaml

@@ -0,0 +1,74 @@
+linters:
+  disable-all: true
+  enable:
+    - asasalint
+    - asciicheck
+    - bidichk
+    - bodyclose
+    - containedctx
+    - contextcheck
+    - decorder
+    - dogsled
+    - dupl
+    - dupword
+    - durationcheck
+    - errcheck
+    - errchkjson
+    - errname
+    - errorlint
+    - execinquery
+    - exhaustive
+    - exportloopref
+    - forcetypeassert
+    - ginkgolinter
+    - gocheckcompilerdirectives
+    - gochecknoinits
+    - gochecksumtype
+    - goconst
+    - gofmt
+    - goheader
+    - goimports
+    - gomodguard
+    - goprintffuncname
+    - gosec
+    - gosimple
+    - gosmopolitan
+    - govet
+    - grouper
+    - importas
+    - ineffassign
+    - loggercheck
+    - makezero
+    - mirror
+    - misspell
+    - nakedret
+    - nestif
+    - nilerr
+    - nilnil
+    - noctx
+    - nolintlint
+    - nosprintfhostport
+    - prealloc
+    - predeclared
+    - promlinter
+    - reassign
+    - revive
+    - rowserrcheck
+    - sloglint
+    - spancheck
+    - sqlclosecheck
+    - stylecheck
+    - tagalign
+    - tagliatelle
+    - tenv
+    - testableexamples
+    - testifylint
+    - thelper
+    - typecheck
+    - unconvert
+    - unparam
+    - unused
+    - usestdlibvars
+    - wastedassign
+    - whitespace
+    - zerologlint

Makefile

@@ -1,9 +1,35 @@
-# Go parameters
 GOCMD = go
 GOTEST = $(GOCMD) test 
 
+GOLANGCI_VERSION ?= v1.57.2
+TOOLS_BIN := $(shell mkdir -p build/tools && realpath build/tools)
+
+GOLANGCI = $(TOOLS_BIN)/golangci-lint-$(GOLANGCI_VERSION)
+$(GOLANGCI):
+	rm -f $(TOOLS_BIN)/golangci-lint*
+	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/$(GOLANGCI_VERSION)/install.sh | sh -s -- -b $(TOOLS_BIN) $(GOLANGCI_VERSION)
+	mv $(TOOLS_BIN)/golangci-lint $(TOOLS_BIN)/golangci-lint-$(GOLANGCI_VERSION)
+
 test:
 	$(GOTEST) ./...
 
-generate: $(esc)
-	$(GOCMD) generate
+validate: validate-lint validate-dirty ## Run validation checks.
+
+validate-lint: $(GOLANGCI)
+	$(GOLANGCI) run
+
+define go-install-tool
+@[ -f $(1) ] || { \
+set -e ;\
+echo "Downloading $(2)" ;\
+GOBIN=$(TOOLS_BIN) go install $(2) ;\
+}
+endef
+
+validate-dirty:
+ifneq ($(shell git status --porcelain --untracked-files=no),)
+	@echo worktree is dirty
+	@git --no-pager status
+	@git --no-pager diff
+	@exit 1
+endif

README.md

@@ -26,5 +26,3 @@ ls .git/objects/pack/
 	PackfileHash: "<PACK_HASH>",
 }
 ```
-
-4. Run `make generate`.

fixtures.go

@@ -9,15 +9,11 @@ import (
 	"testing"
 
 	"github.com/go-git/go-billy/v5"
-	"github.com/go-git/go-billy/v5/osfs"
-	"github.com/go-git/go-git-fixtures/v4/internal/tgz"
-	"gopkg.in/check.v1"
+	"github.com/go-git/go-git-fixtures/v5/internal/embedfs"
+	"github.com/go-git/go-git-fixtures/v5/internal/tgz"
 )
 
-var (
-	files      = make(map[string]string)
-	Filesystem = osfs.New(os.TempDir())
-)
+var Filesystem = embedfs.New(&data)
 
 //go:embed data
 var data embed.FS
@@ -231,35 +227,8 @@ func (f *Fixture) Is(tag string) bool {
 	return false
 }
 
-func (f *Fixture) file(path string) (billy.File, error) {
-	if fpath, ok := files[path]; ok {
-		return Filesystem.Open(fpath)
-	}
-
-	bytes, err := data.ReadFile("data/" + path)
-	if err != nil {
-		return nil, err
-	}
-
-	file, err := Filesystem.TempFile("", "go-git-fixtures")
-	if err != nil {
-		return nil, err
-	}
-
-	if _, err := file.Write(bytes); err != nil {
-		return nil, err
-	}
-
-	if err := file.Close(); err != nil {
-		return nil, err
-	}
-
-	files[path] = file.Name()
-	return Filesystem.Open(file.Name())
-}
-
 func (f *Fixture) Packfile() billy.File {
-	file, err := f.file(fmt.Sprintf("pack-%s.pack", f.PackfileHash))
+	file, err := Filesystem.Open(fmt.Sprintf("data/pack-%s.pack", f.PackfileHash))
 	if err != nil {
 		panic(err)
 	}
@@ -268,7 +237,7 @@ func (f *Fixture) Packfile() billy.File {
 }
 
 func (f *Fixture) Idx() billy.File {
-	file, err := f.file(fmt.Sprintf("pack-%s.idx", f.PackfileHash))
+	file, err := Filesystem.Open(fmt.Sprintf("data/pack-%s.idx", f.PackfileHash))
 	if err != nil {
 		panic(err)
 	}
@@ -277,7 +246,7 @@ func (f *Fixture) Idx() billy.File {
 }
 
 func (f *Fixture) Rev() billy.File {
-	file, err := f.file(fmt.Sprintf("pack-%s.rev", f.PackfileHash))
+	file, err := Filesystem.Open(fmt.Sprintf("data/pack-%s.rev", f.PackfileHash))
 	if err != nil {
 		panic(err)
 	}
@@ -287,18 +256,28 @@ func (f *Fixture) Rev() billy.File {
 
 // DotGit creates a new temporary directory and unpacks the repository .git
 // directory into it. Multiple calls to DotGit returns different directories.
-func (f *Fixture) DotGit() billy.Filesystem {
+func (f *Fixture) DotGit(opts ...Option) billy.Filesystem {
+	o := newOptions()
+	for _, opt := range opts {
+		opt(o)
+	}
+
 	if f.DotGitHash == "" && f.WorktreeHash != "" {
-		fs, _ := f.Worktree().Chroot(".git")
-		return fs.(billy.Filesystem)
+		fs, _ := f.Worktree(opts...).Chroot(".git")
+		return fs
 	}
 
-	file, err := f.file(fmt.Sprintf("git-%s.tgz", f.DotGitHash))
+	file, err := Filesystem.Open(fmt.Sprintf("data/git-%s.tgz", f.DotGitHash))
 	if err != nil {
 		panic(err)
 	}
 
-	fs, err, _ := tgz.Extract(Filesystem, file.Name())
+	fs, err := o.fsFactory()
+	if err != nil {
+		panic(err)
+	}
+
+	err = tgz.Extract(file, fs)
 	if err != nil {
 		panic(err)
 	}
@@ -332,13 +311,23 @@ func EnsureIsBare(fs billy.Filesystem) error {
 	return err
 }
 
-func (f *Fixture) Worktree() billy.Filesystem {
-	file, err := f.file(fmt.Sprintf("worktree-%s.tgz", f.WorktreeHash))
+func (f *Fixture) Worktree(opts ...Option) billy.Filesystem {
+	o := newOptions()
+	for _, opt := range opts {
+		opt(o)
+	}
+
+	file, err := Filesystem.Open(fmt.Sprintf("data/worktree-%s.tgz", f.WorktreeHash))
+	if err != nil {
+		panic(err)
+	}
+
+	fs, err := o.fsFactory()
 	if err != nil {
 		panic(err)
 	}
 
-	fs, err, _ := tgz.Extract(Filesystem, file.Name())
+	err = tgz.Extract(file, fs)
 	if err != nil {
 		panic(err)
 	}
@@ -348,17 +337,9 @@ func (f *Fixture) Worktree() billy.Filesystem {
 
 type Fixtures []*Fixture
 
-// Deprecated as part of removing check from the code base.
-// Use Run instead.
-func (g Fixtures) Test(c *check.C, test func(*Fixture)) {
-	for _, f := range g {
-		c.Logf("executing test at %s %s", f.URL, f.Tags)
-		test(f)
-	}
-}
-
 // Run calls test within a t.Run for each fixture in g.
 func (g Fixtures) Run(t *testing.T, test func(*testing.T, *Fixture)) {
+	t.Helper()
 	for _, f := range g {
 		name := fmt.Sprintf("fixture run (%q, %q)", f.URL, f.Tags)
 		t.Run(name, func(t *testing.T) {
@@ -368,11 +349,14 @@ func (g Fixtures) Run(t *testing.T, test func(*testing.T, *Fixture)) {
 }
 
 func (g Fixtures) One() *Fixture {
+	if len(g) == 0 {
+		return nil
+	}
 	return g[0]
 }
 
 func (g Fixtures) ByTag(tag string) Fixtures {
-	r := make(Fixtures, 0)
+	r := make(Fixtures, 0, len(g))
 	for _, f := range g {
 		if f.Is(tag) {
 			r = append(r, f)
@@ -383,7 +367,7 @@ func (g Fixtures) ByTag(tag string) Fixtures {
 }
 
 func (g Fixtures) ByURL(url string) Fixtures {
-	r := make(Fixtures, 0)
+	r := make(Fixtures, 0, len(g))
 	for _, f := range g {
 		if f.URL == url {
 			r = append(r, f)
@@ -394,7 +378,7 @@ func (g Fixtures) ByURL(url string) Fixtures {
 }
 
 func (g Fixtures) Exclude(tag string) Fixtures {
-	r := make(Fixtures, 0)
+	r := make(Fixtures, 0, len(g))
 	for _, f := range g {
 		if !f.Is(tag) {
 			r = append(r, f)
@@ -403,21 +387,3 @@ func (g Fixtures) Exclude(tag string) Fixtures {
 
 	return r
 }
-
-// Clean cleans all the temporal files created
-func Clean() error {
-	for fname, f := range files {
-		if err := Filesystem.Remove(f); err != nil {
-			return err
-		}
-		delete(files, fname)
-	}
-	return nil
-}
-
-type Suite struct{}
-
-// Deprecated as part of removing check from the code base.
-func (s *Suite) TearDownSuite(c *check.C) {
-	Clean()
-}