mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
591 lines
16 KiB
Go
591 lines
16 KiB
Go
package fileutils // import "github.com/docker/docker/pkg/fileutils"
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path"
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"path/filepath"
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"runtime"
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"strings"
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"testing"
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"gotest.tools/assert"
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is "gotest.tools/assert/cmp"
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)
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// CopyFile with invalid src
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func TestCopyFileWithInvalidSrc(t *testing.T) {
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tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
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defer os.RemoveAll(tempFolder)
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if err != nil {
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t.Fatal(err)
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}
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bytes, err := CopyFile("/invalid/file/path", path.Join(tempFolder, "dest"))
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if err == nil {
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t.Fatal("Should have fail to copy an invalid src file")
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}
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if bytes != 0 {
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t.Fatal("Should have written 0 bytes")
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}
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}
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// CopyFile with invalid dest
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func TestCopyFileWithInvalidDest(t *testing.T) {
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tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
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defer os.RemoveAll(tempFolder)
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if err != nil {
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t.Fatal(err)
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}
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src := path.Join(tempFolder, "file")
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err = ioutil.WriteFile(src, []byte("content"), 0740)
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if err != nil {
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t.Fatal(err)
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}
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bytes, err := CopyFile(src, path.Join(tempFolder, "/invalid/dest/path"))
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if err == nil {
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t.Fatal("Should have fail to copy an invalid src file")
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}
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if bytes != 0 {
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t.Fatal("Should have written 0 bytes")
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}
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}
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// CopyFile with same src and dest
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func TestCopyFileWithSameSrcAndDest(t *testing.T) {
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tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
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defer os.RemoveAll(tempFolder)
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if err != nil {
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t.Fatal(err)
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}
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file := path.Join(tempFolder, "file")
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err = ioutil.WriteFile(file, []byte("content"), 0740)
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if err != nil {
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t.Fatal(err)
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}
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bytes, err := CopyFile(file, file)
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if err != nil {
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t.Fatal(err)
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}
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if bytes != 0 {
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t.Fatal("Should have written 0 bytes as it is the same file.")
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}
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}
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// CopyFile with same src and dest but path is different and not clean
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func TestCopyFileWithSameSrcAndDestWithPathNameDifferent(t *testing.T) {
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tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
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defer os.RemoveAll(tempFolder)
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if err != nil {
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t.Fatal(err)
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}
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testFolder := path.Join(tempFolder, "test")
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err = os.MkdirAll(testFolder, 0740)
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if err != nil {
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t.Fatal(err)
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}
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file := path.Join(testFolder, "file")
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sameFile := testFolder + "/../test/file"
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err = ioutil.WriteFile(file, []byte("content"), 0740)
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if err != nil {
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t.Fatal(err)
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}
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bytes, err := CopyFile(file, sameFile)
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if err != nil {
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t.Fatal(err)
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}
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if bytes != 0 {
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t.Fatal("Should have written 0 bytes as it is the same file.")
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}
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}
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func TestCopyFile(t *testing.T) {
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tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
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defer os.RemoveAll(tempFolder)
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if err != nil {
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t.Fatal(err)
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}
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src := path.Join(tempFolder, "src")
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dest := path.Join(tempFolder, "dest")
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ioutil.WriteFile(src, []byte("content"), 0777)
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ioutil.WriteFile(dest, []byte("destContent"), 0777)
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bytes, err := CopyFile(src, dest)
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if err != nil {
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t.Fatal(err)
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}
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if bytes != 7 {
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t.Fatalf("Should have written %d bytes but wrote %d", 7, bytes)
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}
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actual, err := ioutil.ReadFile(dest)
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if err != nil {
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t.Fatal(err)
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}
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if string(actual) != "content" {
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t.Fatalf("Dest content was '%s', expected '%s'", string(actual), "content")
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}
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}
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// Reading a symlink to a directory must return the directory
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func TestReadSymlinkedDirectoryExistingDirectory(t *testing.T) {
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// TODO Windows: Port this test
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if runtime.GOOS == "windows" {
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t.Skip("Needs porting to Windows")
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}
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var err error
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if err = os.Mkdir("/tmp/testReadSymlinkToExistingDirectory", 0777); err != nil {
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t.Errorf("failed to create directory: %s", err)
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}
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if err = os.Symlink("/tmp/testReadSymlinkToExistingDirectory", "/tmp/dirLinkTest"); err != nil {
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t.Errorf("failed to create symlink: %s", err)
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}
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var path string
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if path, err = ReadSymlinkedDirectory("/tmp/dirLinkTest"); err != nil {
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t.Fatalf("failed to read symlink to directory: %s", err)
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}
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if path != "/tmp/testReadSymlinkToExistingDirectory" {
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t.Fatalf("symlink returned unexpected directory: %s", path)
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}
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if err = os.Remove("/tmp/testReadSymlinkToExistingDirectory"); err != nil {
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t.Errorf("failed to remove temporary directory: %s", err)
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}
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if err = os.Remove("/tmp/dirLinkTest"); err != nil {
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t.Errorf("failed to remove symlink: %s", err)
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}
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}
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// Reading a non-existing symlink must fail
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func TestReadSymlinkedDirectoryNonExistingSymlink(t *testing.T) {
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var path string
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var err error
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if path, err = ReadSymlinkedDirectory("/tmp/test/foo/Non/ExistingPath"); err == nil {
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t.Fatalf("error expected for non-existing symlink")
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}
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if path != "" {
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t.Fatalf("expected empty path, but '%s' was returned", path)
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}
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}
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// Reading a symlink to a file must fail
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func TestReadSymlinkedDirectoryToFile(t *testing.T) {
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// TODO Windows: Port this test
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if runtime.GOOS == "windows" {
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t.Skip("Needs porting to Windows")
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}
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var err error
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var file *os.File
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if file, err = os.Create("/tmp/testReadSymlinkToFile"); err != nil {
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t.Fatalf("failed to create file: %s", err)
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}
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file.Close()
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if err = os.Symlink("/tmp/testReadSymlinkToFile", "/tmp/fileLinkTest"); err != nil {
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t.Errorf("failed to create symlink: %s", err)
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}
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var path string
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if path, err = ReadSymlinkedDirectory("/tmp/fileLinkTest"); err == nil {
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t.Fatalf("ReadSymlinkedDirectory on a symlink to a file should've failed")
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}
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if path != "" {
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t.Fatalf("path should've been empty: %s", path)
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}
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if err = os.Remove("/tmp/testReadSymlinkToFile"); err != nil {
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t.Errorf("failed to remove file: %s", err)
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}
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if err = os.Remove("/tmp/fileLinkTest"); err != nil {
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t.Errorf("failed to remove symlink: %s", err)
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}
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}
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func TestWildcardMatches(t *testing.T) {
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match, _ := Matches("fileutils.go", []string{"*"})
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if !match {
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t.Errorf("failed to get a wildcard match, got %v", match)
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}
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}
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// A simple pattern match should return true.
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func TestPatternMatches(t *testing.T) {
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match, _ := Matches("fileutils.go", []string{"*.go"})
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if !match {
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t.Errorf("failed to get a match, got %v", match)
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}
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}
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// An exclusion followed by an inclusion should return true.
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func TestExclusionPatternMatchesPatternBefore(t *testing.T) {
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match, _ := Matches("fileutils.go", []string{"!fileutils.go", "*.go"})
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if !match {
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t.Errorf("failed to get true match on exclusion pattern, got %v", match)
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}
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}
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// A folder pattern followed by an exception should return false.
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func TestPatternMatchesFolderExclusions(t *testing.T) {
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match, _ := Matches("docs/README.md", []string{"docs", "!docs/README.md"})
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if match {
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t.Errorf("failed to get a false match on exclusion pattern, got %v", match)
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}
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}
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// A folder pattern followed by an exception should return false.
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func TestPatternMatchesFolderWithSlashExclusions(t *testing.T) {
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match, _ := Matches("docs/README.md", []string{"docs/", "!docs/README.md"})
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if match {
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t.Errorf("failed to get a false match on exclusion pattern, got %v", match)
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}
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}
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// A folder pattern followed by an exception should return false.
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func TestPatternMatchesFolderWildcardExclusions(t *testing.T) {
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match, _ := Matches("docs/README.md", []string{"docs/*", "!docs/README.md"})
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if match {
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t.Errorf("failed to get a false match on exclusion pattern, got %v", match)
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}
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}
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// A pattern followed by an exclusion should return false.
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func TestExclusionPatternMatchesPatternAfter(t *testing.T) {
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match, _ := Matches("fileutils.go", []string{"*.go", "!fileutils.go"})
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if match {
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t.Errorf("failed to get false match on exclusion pattern, got %v", match)
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}
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}
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// A filename evaluating to . should return false.
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func TestExclusionPatternMatchesWholeDirectory(t *testing.T) {
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match, _ := Matches(".", []string{"*.go"})
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if match {
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t.Errorf("failed to get false match on ., got %v", match)
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}
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}
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// A single ! pattern should return an error.
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func TestSingleExclamationError(t *testing.T) {
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_, err := Matches("fileutils.go", []string{"!"})
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if err == nil {
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t.Errorf("failed to get an error for a single exclamation point, got %v", err)
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}
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}
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// Matches with no patterns
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func TestMatchesWithNoPatterns(t *testing.T) {
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matches, err := Matches("/any/path/there", []string{})
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if err != nil {
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t.Fatal(err)
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}
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if matches {
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t.Fatalf("Should not have match anything")
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}
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}
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// Matches with malformed patterns
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func TestMatchesWithMalformedPatterns(t *testing.T) {
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matches, err := Matches("/any/path/there", []string{"["})
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if err == nil {
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t.Fatal("Should have failed because of a malformed syntax in the pattern")
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}
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if matches {
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t.Fatalf("Should not have match anything")
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}
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}
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type matchesTestCase struct {
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pattern string
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text string
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pass bool
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}
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func TestMatches(t *testing.T) {
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tests := []matchesTestCase{
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{"**", "file", true},
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{"**", "file/", true},
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{"**/", "file", true}, // weird one
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{"**/", "file/", true},
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{"**", "/", true},
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{"**/", "/", true},
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{"**", "dir/file", true},
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{"**/", "dir/file", true},
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{"**", "dir/file/", true},
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{"**/", "dir/file/", true},
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{"**/**", "dir/file", true},
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{"**/**", "dir/file/", true},
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{"dir/**", "dir/file", true},
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{"dir/**", "dir/file/", true},
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{"dir/**", "dir/dir2/file", true},
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{"dir/**", "dir/dir2/file/", true},
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{"**/dir2/*", "dir/dir2/file", true},
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{"**/dir2/*", "dir/dir2/file/", true},
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{"**/dir2/**", "dir/dir2/dir3/file", true},
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{"**/dir2/**", "dir/dir2/dir3/file/", true},
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{"**file", "file", true},
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{"**file", "dir/file", true},
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{"**/file", "dir/file", true},
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{"**file", "dir/dir/file", true},
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{"**/file", "dir/dir/file", true},
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{"**/file*", "dir/dir/file", true},
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{"**/file*", "dir/dir/file.txt", true},
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{"**/file*txt", "dir/dir/file.txt", true},
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{"**/file*.txt", "dir/dir/file.txt", true},
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{"**/file*.txt*", "dir/dir/file.txt", true},
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{"**/**/*.txt", "dir/dir/file.txt", true},
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{"**/**/*.txt2", "dir/dir/file.txt", false},
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{"**/*.txt", "file.txt", true},
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{"**/**/*.txt", "file.txt", true},
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{"a**/*.txt", "a/file.txt", true},
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{"a**/*.txt", "a/dir/file.txt", true},
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{"a**/*.txt", "a/dir/dir/file.txt", true},
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{"a/*.txt", "a/dir/file.txt", false},
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{"a/*.txt", "a/file.txt", true},
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{"a/*.txt**", "a/file.txt", true},
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{"a[b-d]e", "ae", false},
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{"a[b-d]e", "ace", true},
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{"a[b-d]e", "aae", false},
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{"a[^b-d]e", "aze", true},
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{".*", ".foo", true},
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{".*", "foo", false},
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{"abc.def", "abcdef", false},
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{"abc.def", "abc.def", true},
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{"abc.def", "abcZdef", false},
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{"abc?def", "abcZdef", true},
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{"abc?def", "abcdef", false},
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{"a\\\\", "a\\", true},
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{"**/foo/bar", "foo/bar", true},
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{"**/foo/bar", "dir/foo/bar", true},
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{"**/foo/bar", "dir/dir2/foo/bar", true},
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{"abc/**", "abc", false},
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{"abc/**", "abc/def", true},
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{"abc/**", "abc/def/ghi", true},
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{"**/.foo", ".foo", true},
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{"**/.foo", "bar.foo", false},
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}
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if runtime.GOOS != "windows" {
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tests = append(tests, []matchesTestCase{
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{"a\\*b", "a*b", true},
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{"a\\", "a", false},
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{"a\\", "a\\", false},
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}...)
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}
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for _, test := range tests {
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desc := fmt.Sprintf("pattern=%q text=%q", test.pattern, test.text)
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pm, err := NewPatternMatcher([]string{test.pattern})
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assert.NilError(t, err, desc)
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res, _ := pm.Matches(test.text)
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assert.Check(t, is.Equal(test.pass, res), desc)
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}
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}
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func TestCleanPatterns(t *testing.T) {
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patterns := []string{"docs", "config"}
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pm, err := NewPatternMatcher(patterns)
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if err != nil {
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t.Fatalf("invalid pattern %v", patterns)
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}
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cleaned := pm.Patterns()
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if len(cleaned) != 2 {
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t.Errorf("expected 2 element slice, got %v", len(cleaned))
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}
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}
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func TestCleanPatternsStripEmptyPatterns(t *testing.T) {
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patterns := []string{"docs", "config", ""}
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pm, err := NewPatternMatcher(patterns)
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if err != nil {
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t.Fatalf("invalid pattern %v", patterns)
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}
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cleaned := pm.Patterns()
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if len(cleaned) != 2 {
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t.Errorf("expected 2 element slice, got %v", len(cleaned))
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}
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}
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func TestCleanPatternsExceptionFlag(t *testing.T) {
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patterns := []string{"docs", "!docs/README.md"}
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pm, err := NewPatternMatcher(patterns)
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if err != nil {
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t.Fatalf("invalid pattern %v", patterns)
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}
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if !pm.Exclusions() {
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t.Errorf("expected exceptions to be true, got %v", pm.Exclusions())
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}
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}
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func TestCleanPatternsLeadingSpaceTrimmed(t *testing.T) {
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patterns := []string{"docs", " !docs/README.md"}
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pm, err := NewPatternMatcher(patterns)
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if err != nil {
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t.Fatalf("invalid pattern %v", patterns)
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}
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if !pm.Exclusions() {
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t.Errorf("expected exceptions to be true, got %v", pm.Exclusions())
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}
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}
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func TestCleanPatternsTrailingSpaceTrimmed(t *testing.T) {
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patterns := []string{"docs", "!docs/README.md "}
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pm, err := NewPatternMatcher(patterns)
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if err != nil {
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t.Fatalf("invalid pattern %v", patterns)
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}
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if !pm.Exclusions() {
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t.Errorf("expected exceptions to be true, got %v", pm.Exclusions())
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}
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}
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func TestCleanPatternsErrorSingleException(t *testing.T) {
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patterns := []string{"!"}
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_, err := NewPatternMatcher(patterns)
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if err == nil {
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t.Errorf("expected error on single exclamation point, got %v", err)
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}
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}
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func TestCreateIfNotExistsDir(t *testing.T) {
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tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempFolder)
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folderToCreate := filepath.Join(tempFolder, "tocreate")
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if err := CreateIfNotExists(folderToCreate, true); err != nil {
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t.Fatal(err)
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}
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fileinfo, err := os.Stat(folderToCreate)
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if err != nil {
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t.Fatalf("Should have create a folder, got %v", err)
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}
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if !fileinfo.IsDir() {
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t.Fatalf("Should have been a dir, seems it's not")
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}
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}
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func TestCreateIfNotExistsFile(t *testing.T) {
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tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempFolder)
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fileToCreate := filepath.Join(tempFolder, "file/to/create")
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if err := CreateIfNotExists(fileToCreate, false); err != nil {
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t.Fatal(err)
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}
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fileinfo, err := os.Stat(fileToCreate)
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if err != nil {
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t.Fatalf("Should have create a file, got %v", err)
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}
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||
if fileinfo.IsDir() {
|
||
t.Fatalf("Should have been a file, seems it's not")
|
||
}
|
||
}
|
||
|
||
// These matchTests are stolen from go's filepath Match tests.
|
||
type matchTest struct {
|
||
pattern, s string
|
||
match bool
|
||
err error
|
||
}
|
||
|
||
var matchTests = []matchTest{
|
||
{"abc", "abc", true, nil},
|
||
{"*", "abc", true, nil},
|
||
{"*c", "abc", true, nil},
|
||
{"a*", "a", true, nil},
|
||
{"a*", "abc", true, nil},
|
||
{"a*", "ab/c", true, nil},
|
||
{"a*/b", "abc/b", true, nil},
|
||
{"a*/b", "a/c/b", false, nil},
|
||
{"a*b*c*d*e*/f", "axbxcxdxe/f", true, nil},
|
||
{"a*b*c*d*e*/f", "axbxcxdxexxx/f", true, nil},
|
||
{"a*b*c*d*e*/f", "axbxcxdxe/xxx/f", false, nil},
|
||
{"a*b*c*d*e*/f", "axbxcxdxexxx/fff", false, nil},
|
||
{"a*b?c*x", "abxbbxdbxebxczzx", true, nil},
|
||
{"a*b?c*x", "abxbbxdbxebxczzy", false, nil},
|
||
{"ab[c]", "abc", true, nil},
|
||
{"ab[b-d]", "abc", true, nil},
|
||
{"ab[e-g]", "abc", false, nil},
|
||
{"ab[^c]", "abc", false, nil},
|
||
{"ab[^b-d]", "abc", false, nil},
|
||
{"ab[^e-g]", "abc", true, nil},
|
||
{"a\\*b", "a*b", true, nil},
|
||
{"a\\*b", "ab", false, nil},
|
||
{"a?b", "a☺b", true, nil},
|
||
{"a[^a]b", "a☺b", true, nil},
|
||
{"a???b", "a☺b", false, nil},
|
||
{"a[^a][^a][^a]b", "a☺b", false, nil},
|
||
{"[a-ζ]*", "α", true, nil},
|
||
{"*[a-ζ]", "A", false, nil},
|
||
{"a?b", "a/b", false, nil},
|
||
{"a*b", "a/b", false, nil},
|
||
{"[\\]a]", "]", true, nil},
|
||
{"[\\-]", "-", true, nil},
|
||
{"[x\\-]", "x", true, nil},
|
||
{"[x\\-]", "-", true, nil},
|
||
{"[x\\-]", "z", false, nil},
|
||
{"[\\-x]", "x", true, nil},
|
||
{"[\\-x]", "-", true, nil},
|
||
{"[\\-x]", "a", false, nil},
|
||
{"[]a]", "]", false, filepath.ErrBadPattern},
|
||
{"[-]", "-", false, filepath.ErrBadPattern},
|
||
{"[x-]", "x", false, filepath.ErrBadPattern},
|
||
{"[x-]", "-", false, filepath.ErrBadPattern},
|
||
{"[x-]", "z", false, filepath.ErrBadPattern},
|
||
{"[-x]", "x", false, filepath.ErrBadPattern},
|
||
{"[-x]", "-", false, filepath.ErrBadPattern},
|
||
{"[-x]", "a", false, filepath.ErrBadPattern},
|
||
{"\\", "a", false, filepath.ErrBadPattern},
|
||
{"[a-b-c]", "a", false, filepath.ErrBadPattern},
|
||
{"[", "a", false, filepath.ErrBadPattern},
|
||
{"[^", "a", false, filepath.ErrBadPattern},
|
||
{"[^bc", "a", false, filepath.ErrBadPattern},
|
||
{"a[", "a", false, filepath.ErrBadPattern}, // was nil but IMO its wrong
|
||
{"a[", "ab", false, filepath.ErrBadPattern},
|
||
{"*x", "xxx", true, nil},
|
||
}
|
||
|
||
func errp(e error) string {
|
||
if e == nil {
|
||
return "<nil>"
|
||
}
|
||
return e.Error()
|
||
}
|
||
|
||
// TestMatch test's our version of filepath.Match, called regexpMatch.
|
||
func TestMatch(t *testing.T) {
|
||
for _, tt := range matchTests {
|
||
pattern := tt.pattern
|
||
s := tt.s
|
||
if runtime.GOOS == "windows" {
|
||
if strings.Contains(pattern, "\\") {
|
||
// no escape allowed on windows.
|
||
continue
|
||
}
|
||
pattern = filepath.Clean(pattern)
|
||
s = filepath.Clean(s)
|
||
}
|
||
ok, err := Matches(s, []string{pattern})
|
||
if ok != tt.match || err != tt.err {
|
||
t.Fatalf("Match(%#q, %#q) = %v, %q want %v, %q", pattern, s, ok, errp(err), tt.match, errp(tt.err))
|
||
}
|
||
}
|
||
}
|