mirror of
https://github.com/gohugoio/hugo.git
synced 2024-06-30 21:14:10 +00:00
64f75adcf6
I have had this living in a separate branch for now, but we need this in the main branch sooner rather than later. One big advantage of this is that integration tests can live in any package, not just hugolib.
449 lines
11 KiB
Go
449 lines
11 KiB
Go
package hugolib
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import (
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"bytes"
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"fmt"
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"io"
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"os"
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"path/filepath"
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"strings"
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"sync"
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"testing"
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jww "github.com/spf13/jwalterweatherman"
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qt "github.com/frankban/quicktest"
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"github.com/fsnotify/fsnotify"
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"github.com/gohugoio/hugo/common/herrors"
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"github.com/gohugoio/hugo/common/hexec"
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"github.com/gohugoio/hugo/common/loggers"
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"github.com/gohugoio/hugo/config"
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"github.com/gohugoio/hugo/config/security"
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"github.com/gohugoio/hugo/deps"
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"github.com/gohugoio/hugo/helpers"
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"github.com/gohugoio/hugo/htesting"
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"github.com/gohugoio/hugo/hugofs"
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"github.com/spf13/afero"
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"golang.org/x/tools/txtar"
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)
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func NewIntegrationTestBuilder(conf IntegrationTestConfig) *IntegrationTestBuilder {
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data := txtar.Parse([]byte(conf.TxtarString))
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c, ok := conf.T.(*qt.C)
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if !ok {
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c = qt.New(conf.T)
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}
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if conf.NeedsOsFS {
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doClean := true
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tempDir, clean, err := htesting.CreateTempDir(hugofs.Os, "hugo-integration-test")
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c.Assert(err, qt.IsNil)
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conf.WorkingDir = filepath.Join(tempDir, conf.WorkingDir)
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if doClean {
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c.Cleanup(clean)
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}
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}
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return &IntegrationTestBuilder{
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Cfg: conf,
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C: c,
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data: data,
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}
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}
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// IntegrationTestBuilder is a (partial) rewrite of sitesBuilder.
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// The main problem with the "old" one was that it was that the test data was often a little hidden,
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// so it became hard to look at a test and determine what it should do, especially coming back to the
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// test after a year or so.
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type IntegrationTestBuilder struct {
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*qt.C
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data *txtar.Archive
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fs *hugofs.Fs
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H *HugoSites
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Cfg IntegrationTestConfig
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changedFiles []string
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createdFiles []string
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removedFiles []string
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renamedFiles []string
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buildCount int
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counters *testCounters
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logBuff lockingBuffer
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builderInit sync.Once
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}
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type lockingBuffer struct {
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sync.Mutex
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bytes.Buffer
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}
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func (b *lockingBuffer) Write(p []byte) (n int, err error) {
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b.Lock()
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n, err = b.Buffer.Write(p)
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b.Unlock()
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return
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}
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func (s *IntegrationTestBuilder) AssertLogContains(text string) {
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s.Helper()
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s.Assert(s.logBuff.String(), qt.Contains, text)
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}
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func (s *IntegrationTestBuilder) AssertBuildCountData(count int) {
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s.Helper()
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s.Assert(s.H.init.data.InitCount(), qt.Equals, count)
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}
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func (s *IntegrationTestBuilder) AssertBuildCountGitInfo(count int) {
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s.Helper()
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s.Assert(s.H.init.gitInfo.InitCount(), qt.Equals, count)
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}
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func (s *IntegrationTestBuilder) AssertBuildCountLayouts(count int) {
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s.Helper()
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s.Assert(s.H.init.layouts.InitCount(), qt.Equals, count)
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}
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func (s *IntegrationTestBuilder) AssertBuildCountTranslations(count int) {
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s.Helper()
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s.Assert(s.H.init.translations.InitCount(), qt.Equals, count)
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}
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func (s *IntegrationTestBuilder) AssertFileContent(filename string, matches ...string) {
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s.Helper()
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content := strings.TrimSpace(s.FileContent(filename))
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for _, m := range matches {
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lines := strings.Split(m, "\n")
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for _, match := range lines {
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match = strings.TrimSpace(match)
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if match == "" || strings.HasPrefix(match, "#") {
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continue
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}
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s.Assert(content, qt.Contains, match, qt.Commentf(content))
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}
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}
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}
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func (s *IntegrationTestBuilder) AssertDestinationExists(filename string, b bool) {
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checker := qt.IsTrue
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if !b {
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checker = qt.IsFalse
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}
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s.Assert(s.destinationExists(filepath.Clean(filename)), checker)
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}
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func (s *IntegrationTestBuilder) destinationExists(filename string) bool {
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b, err := helpers.Exists(filename, s.fs.Destination)
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if err != nil {
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panic(err)
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}
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return b
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}
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func (s *IntegrationTestBuilder) AssertIsFileError(err error) {
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var ferr *herrors.ErrorWithFileContext
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s.Assert(err, qt.ErrorAs, &ferr)
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}
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func (s *IntegrationTestBuilder) AssertRenderCountContent(count int) {
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s.Helper()
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s.Assert(s.counters.contentRenderCounter, qt.Equals, uint64(count))
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}
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func (s *IntegrationTestBuilder) AssertRenderCountPage(count int) {
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s.Helper()
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s.Assert(s.counters.pageRenderCounter, qt.Equals, uint64(count))
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}
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func (s *IntegrationTestBuilder) Build() *IntegrationTestBuilder {
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s.Helper()
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_, err := s.BuildE()
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if s.Cfg.Verbose {
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fmt.Println(s.logBuff.String())
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}
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s.Assert(err, qt.IsNil)
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return s
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}
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func (s *IntegrationTestBuilder) BuildE() (*IntegrationTestBuilder, error) {
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s.Helper()
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s.initBuilder()
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err := s.build(BuildCfg{})
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return s, err
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}
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type IntegrationTestDebugConfig struct {
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Out io.Writer
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PrintDestinationFs bool
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PrintPagemap bool
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PrefixDestinationFs string
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PrefixPagemap string
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}
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func (s *IntegrationTestBuilder) EditFileReplace(filename string, replacementFunc func(s string) string) *IntegrationTestBuilder {
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absFilename := s.absFilename(filename)
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b, err := afero.ReadFile(s.fs.Source, absFilename)
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s.Assert(err, qt.IsNil)
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s.changedFiles = append(s.changedFiles, absFilename)
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oldContent := string(b)
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s.writeSource(absFilename, replacementFunc(oldContent))
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return s
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}
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func (s *IntegrationTestBuilder) EditFiles(filenameContent ...string) *IntegrationTestBuilder {
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for i := 0; i < len(filenameContent); i += 2 {
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filename, content := filepath.FromSlash(filenameContent[i]), filenameContent[i+1]
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absFilename := s.absFilename(filename)
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s.changedFiles = append(s.changedFiles, absFilename)
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s.writeSource(absFilename, content)
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}
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return s
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}
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func (s *IntegrationTestBuilder) AddFiles(filenameContent ...string) *IntegrationTestBuilder {
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for i := 0; i < len(filenameContent); i += 2 {
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filename, content := filepath.FromSlash(filenameContent[i]), filenameContent[i+1]
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absFilename := s.absFilename(filename)
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s.createdFiles = append(s.createdFiles, absFilename)
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s.writeSource(absFilename, content)
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}
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return s
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}
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func (s *IntegrationTestBuilder) RemoveFiles(filenames ...string) *IntegrationTestBuilder {
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for _, filename := range filenames {
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absFilename := s.absFilename(filename)
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s.removedFiles = append(s.removedFiles, absFilename)
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s.Assert(s.fs.Source.Remove(absFilename), qt.IsNil)
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}
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return s
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}
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func (s *IntegrationTestBuilder) RenameFile(old, new string) *IntegrationTestBuilder {
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absOldFilename := s.absFilename(old)
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absNewFilename := s.absFilename(new)
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s.renamedFiles = append(s.renamedFiles, absOldFilename)
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s.createdFiles = append(s.createdFiles, absNewFilename)
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s.Assert(s.fs.Source.Rename(absOldFilename, absNewFilename), qt.IsNil)
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return s
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}
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func (s *IntegrationTestBuilder) FileContent(filename string) string {
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s.Helper()
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filename = filepath.FromSlash(filename)
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if !strings.HasPrefix(filename, s.Cfg.WorkingDir) {
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filename = filepath.Join(s.Cfg.WorkingDir, filename)
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}
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return s.readDestination(s, s.fs, filename)
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}
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func (s *IntegrationTestBuilder) initBuilder() {
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s.builderInit.Do(func() {
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var afs afero.Fs
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if s.Cfg.NeedsOsFS {
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afs = afero.NewOsFs()
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} else {
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afs = afero.NewMemMapFs()
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}
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if s.Cfg.LogLevel == 0 {
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s.Cfg.LogLevel = jww.LevelWarn
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}
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logger := loggers.NewBasicLoggerForWriter(s.Cfg.LogLevel, &s.logBuff)
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fs := hugofs.NewFrom(afs, config.New())
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for _, f := range s.data.Files {
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filename := filepath.Join(s.Cfg.WorkingDir, f.Name)
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s.Assert(afs.MkdirAll(filepath.Dir(filename), 0777), qt.IsNil)
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s.Assert(afero.WriteFile(afs, filename, bytes.TrimSuffix(f.Data, []byte("\n")), 0666), qt.IsNil)
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}
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cfg, _, err := LoadConfig(
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ConfigSourceDescriptor{
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WorkingDir: s.Cfg.WorkingDir,
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Fs: afs,
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Logger: logger,
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Environ: []string{},
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Filename: "config.toml",
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},
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func(cfg config.Provider) error {
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return nil
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},
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)
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s.Assert(err, qt.IsNil)
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cfg.Set("workingDir", s.Cfg.WorkingDir)
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depsCfg := deps.DepsCfg{Cfg: cfg, Fs: fs, Running: s.Cfg.Running, Logger: logger}
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sites, err := NewHugoSites(depsCfg)
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s.Assert(err, qt.IsNil)
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s.H = sites
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s.fs = fs
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if s.Cfg.NeedsNpmInstall {
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wd, _ := os.Getwd()
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s.Assert(os.Chdir(s.Cfg.WorkingDir), qt.IsNil)
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s.C.Cleanup(func() { os.Chdir(wd) })
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sc := security.DefaultConfig
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sc.Exec.Allow = security.NewWhitelist("npm")
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ex := hexec.New(sc)
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command, err := ex.New("npm", "install")
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s.Assert(err, qt.IsNil)
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s.Assert(command.Run(), qt.IsNil)
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}
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})
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}
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func (s *IntegrationTestBuilder) absFilename(filename string) string {
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filename = filepath.FromSlash(filename)
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if filepath.IsAbs(filename) {
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return filename
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}
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if s.Cfg.WorkingDir != "" && !strings.HasPrefix(filename, s.Cfg.WorkingDir) {
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filename = filepath.Join(s.Cfg.WorkingDir, filename)
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}
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return filename
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}
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func (s *IntegrationTestBuilder) build(cfg BuildCfg) error {
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s.Helper()
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defer func() {
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s.changedFiles = nil
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s.createdFiles = nil
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s.removedFiles = nil
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s.renamedFiles = nil
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}()
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changeEvents := s.changeEvents()
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s.logBuff.Reset()
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s.counters = &testCounters{}
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cfg.testCounters = s.counters
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if s.buildCount > 0 && (len(changeEvents) == 0) {
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return nil
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}
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s.buildCount++
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err := s.H.Build(cfg, changeEvents...)
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if err != nil {
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return err
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}
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logErrorCount := s.H.NumLogErrors()
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if logErrorCount > 0 {
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return fmt.Errorf("logged %d error(s): %s", logErrorCount, s.logBuff.String())
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}
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return nil
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}
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func (s *IntegrationTestBuilder) changeEvents() []fsnotify.Event {
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var events []fsnotify.Event
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for _, v := range s.removedFiles {
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events = append(events, fsnotify.Event{
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Name: v,
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Op: fsnotify.Remove,
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})
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}
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for _, v := range s.renamedFiles {
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events = append(events, fsnotify.Event{
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Name: v,
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Op: fsnotify.Rename,
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})
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}
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for _, v := range s.changedFiles {
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events = append(events, fsnotify.Event{
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Name: v,
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Op: fsnotify.Write,
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})
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}
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for _, v := range s.createdFiles {
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events = append(events, fsnotify.Event{
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Name: v,
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Op: fsnotify.Create,
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})
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}
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return events
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}
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func (s *IntegrationTestBuilder) readDestination(t testing.TB, fs *hugofs.Fs, filename string) string {
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t.Helper()
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return s.readFileFromFs(t, fs.Destination, filename)
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}
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func (s *IntegrationTestBuilder) readFileFromFs(t testing.TB, fs afero.Fs, filename string) string {
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t.Helper()
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filename = filepath.Clean(filename)
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b, err := afero.ReadFile(fs, filename)
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if err != nil {
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// Print some debug info
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hadSlash := strings.HasPrefix(filename, helpers.FilePathSeparator)
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start := 0
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if hadSlash {
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start = 1
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}
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end := start + 1
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parts := strings.Split(filename, helpers.FilePathSeparator)
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if parts[start] == "work" {
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end++
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}
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s.Assert(err, qt.IsNil)
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}
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return string(b)
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}
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func (s *IntegrationTestBuilder) writeSource(filename, content string) {
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s.Helper()
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s.writeToFs(s.fs.Source, filename, content)
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}
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func (s *IntegrationTestBuilder) writeToFs(fs afero.Fs, filename, content string) {
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s.Helper()
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if err := afero.WriteFile(fs, filepath.FromSlash(filename), []byte(content), 0755); err != nil {
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s.Fatalf("Failed to write file: %s", err)
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}
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}
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type IntegrationTestConfig struct {
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T testing.TB
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// The files to use on txtar format, see
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// https://pkg.go.dev/golang.org/x/exp/cmd/txtar
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TxtarString string
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// Whether to simulate server mode.
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Running bool
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// Will print the log buffer after the build
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Verbose bool
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LogLevel jww.Threshold
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// Whether it needs the real file system (e.g. for js.Build tests).
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NeedsOsFS bool
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// Whether to run npm install before Build.
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NeedsNpmInstall bool
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WorkingDir string
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}
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