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moby--moby/pkg/fileutils/fileutils_test.go
Vincent Demeester 09adf87f23 Add missing tests and docs for pkg/fileutils
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
2015-07-12 22:43:42 +02:00

402 lines
11 KiB
Go

package fileutils
import (
"io/ioutil"
"os"
"path"
"path/filepath"
"testing"
)
// CopyFile with invalid src
func TestCopyFileWithInvalidSrc(t *testing.T) {
tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
defer os.RemoveAll(tempFolder)
if err != nil {
t.Fatal(err)
}
bytes, err := CopyFile("/invalid/file/path", path.Join(tempFolder, "dest"))
if err == nil {
t.Fatal("Should have fail to copy an invalid src file")
}
if bytes != 0 {
t.Fatal("Should have written 0 bytes")
}
}
// CopyFile with invalid dest
func TestCopyFileWithInvalidDest(t *testing.T) {
tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
defer os.RemoveAll(tempFolder)
if err != nil {
t.Fatal(err)
}
src := path.Join(tempFolder, "file")
err = ioutil.WriteFile(src, []byte("content"), 0740)
if err != nil {
t.Fatal(err)
}
bytes, err := CopyFile(src, path.Join(tempFolder, "/invalid/dest/path"))
if err == nil {
t.Fatal("Should have fail to copy an invalid src file")
}
if bytes != 0 {
t.Fatal("Should have written 0 bytes")
}
}
// CopyFile with same src and dest
func TestCopyFileWithSameSrcAndDest(t *testing.T) {
tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
defer os.RemoveAll(tempFolder)
if err != nil {
t.Fatal(err)
}
file := path.Join(tempFolder, "file")
err = ioutil.WriteFile(file, []byte("content"), 0740)
if err != nil {
t.Fatal(err)
}
bytes, err := CopyFile(file, file)
if err != nil {
t.Fatal(err)
}
if bytes != 0 {
t.Fatal("Should have written 0 bytes as it is the same file.")
}
}
// CopyFile with same src and dest but path is different and not clean
func TestCopyFileWithSameSrcAndDestWithPathNameDifferent(t *testing.T) {
tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
defer os.RemoveAll(tempFolder)
if err != nil {
t.Fatal(err)
}
testFolder := path.Join(tempFolder, "test")
err = os.MkdirAll(testFolder, 0740)
if err != nil {
t.Fatal(err)
}
file := path.Join(testFolder, "file")
sameFile := testFolder + "/../test/file"
err = ioutil.WriteFile(file, []byte("content"), 0740)
if err != nil {
t.Fatal(err)
}
bytes, err := CopyFile(file, sameFile)
if err != nil {
t.Fatal(err)
}
if bytes != 0 {
t.Fatal("Should have written 0 bytes as it is the same file.")
}
}
func TestCopyFile(t *testing.T) {
tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
defer os.RemoveAll(tempFolder)
if err != nil {
t.Fatal(err)
}
src := path.Join(tempFolder, "src")
dest := path.Join(tempFolder, "dest")
ioutil.WriteFile(src, []byte("content"), 0777)
ioutil.WriteFile(dest, []byte("destContent"), 0777)
bytes, err := CopyFile(src, dest)
if err != nil {
t.Fatal(err)
}
if bytes != 7 {
t.Fatalf("Should have written %d bytes but wrote %d", 7, bytes)
}
actual, err := ioutil.ReadFile(dest)
if err != nil {
t.Fatal(err)
}
if string(actual) != "content" {
t.Fatalf("Dest content was '%s', expected '%s'", string(actual), "content")
}
}
// Reading a symlink to a directory must return the directory
func TestReadSymlinkedDirectoryExistingDirectory(t *testing.T) {
var err error
if err = os.Mkdir("/tmp/testReadSymlinkToExistingDirectory", 0777); err != nil {
t.Errorf("failed to create directory: %s", err)
}
if err = os.Symlink("/tmp/testReadSymlinkToExistingDirectory", "/tmp/dirLinkTest"); err != nil {
t.Errorf("failed to create symlink: %s", err)
}
var path string
if path, err = ReadSymlinkedDirectory("/tmp/dirLinkTest"); err != nil {
t.Fatalf("failed to read symlink to directory: %s", err)
}
if path != "/tmp/testReadSymlinkToExistingDirectory" {
t.Fatalf("symlink returned unexpected directory: %s", path)
}
if err = os.Remove("/tmp/testReadSymlinkToExistingDirectory"); err != nil {
t.Errorf("failed to remove temporary directory: %s", err)
}
if err = os.Remove("/tmp/dirLinkTest"); err != nil {
t.Errorf("failed to remove symlink: %s", err)
}
}
// Reading a non-existing symlink must fail
func TestReadSymlinkedDirectoryNonExistingSymlink(t *testing.T) {
var path string
var err error
if path, err = ReadSymlinkedDirectory("/tmp/test/foo/Non/ExistingPath"); err == nil {
t.Fatalf("error expected for non-existing symlink")
}
if path != "" {
t.Fatalf("expected empty path, but '%s' was returned", path)
}
}
// Reading a symlink to a file must fail
func TestReadSymlinkedDirectoryToFile(t *testing.T) {
var err error
var file *os.File
if file, err = os.Create("/tmp/testReadSymlinkToFile"); err != nil {
t.Fatalf("failed to create file: %s", err)
}
file.Close()
if err = os.Symlink("/tmp/testReadSymlinkToFile", "/tmp/fileLinkTest"); err != nil {
t.Errorf("failed to create symlink: %s", err)
}
var path string
if path, err = ReadSymlinkedDirectory("/tmp/fileLinkTest"); err == nil {
t.Fatalf("ReadSymlinkedDirectory on a symlink to a file should've failed")
}
if path != "" {
t.Fatalf("path should've been empty: %s", path)
}
if err = os.Remove("/tmp/testReadSymlinkToFile"); err != nil {
t.Errorf("failed to remove file: %s", err)
}
if err = os.Remove("/tmp/fileLinkTest"); err != nil {
t.Errorf("failed to remove symlink: %s", err)
}
}
func TestWildcardMatches(t *testing.T) {
match, _ := Matches("fileutils.go", []string{"*"})
if match != true {
t.Errorf("failed to get a wildcard match, got %v", match)
}
}
// A simple pattern match should return true.
func TestPatternMatches(t *testing.T) {
match, _ := Matches("fileutils.go", []string{"*.go"})
if match != true {
t.Errorf("failed to get a match, got %v", match)
}
}
// An exclusion followed by an inclusion should return true.
func TestExclusionPatternMatchesPatternBefore(t *testing.T) {
match, _ := Matches("fileutils.go", []string{"!fileutils.go", "*.go"})
if match != true {
t.Errorf("failed to get true match on exclusion pattern, got %v", match)
}
}
// A folder pattern followed by an exception should return false.
func TestPatternMatchesFolderExclusions(t *testing.T) {
match, _ := Matches("docs/README.md", []string{"docs", "!docs/README.md"})
if match != false {
t.Errorf("failed to get a false match on exclusion pattern, got %v", match)
}
}
// A folder pattern followed by an exception should return false.
func TestPatternMatchesFolderWithSlashExclusions(t *testing.T) {
match, _ := Matches("docs/README.md", []string{"docs/", "!docs/README.md"})
if match != false {
t.Errorf("failed to get a false match on exclusion pattern, got %v", match)
}
}
// A folder pattern followed by an exception should return false.
func TestPatternMatchesFolderWildcardExclusions(t *testing.T) {
match, _ := Matches("docs/README.md", []string{"docs/*", "!docs/README.md"})
if match != false {
t.Errorf("failed to get a false match on exclusion pattern, got %v", match)
}
}
// A pattern followed by an exclusion should return false.
func TestExclusionPatternMatchesPatternAfter(t *testing.T) {
match, _ := Matches("fileutils.go", []string{"*.go", "!fileutils.go"})
if match != false {
t.Errorf("failed to get false match on exclusion pattern, got %v", match)
}
}
// A filename evaluating to . should return false.
func TestExclusionPatternMatchesWholeDirectory(t *testing.T) {
match, _ := Matches(".", []string{"*.go"})
if match != false {
t.Errorf("failed to get false match on ., got %v", match)
}
}
// A single ! pattern should return an error.
func TestSingleExclamationError(t *testing.T) {
_, err := Matches("fileutils.go", []string{"!"})
if err == nil {
t.Errorf("failed to get an error for a single exclamation point, got %v", err)
}
}
// A string preceded with a ! should return true from Exclusion.
func TestExclusion(t *testing.T) {
exclusion := exclusion("!")
if !exclusion {
t.Errorf("failed to get true for a single !, got %v", exclusion)
}
}
// Matches with no patterns
func TestMatchesWithNoPatterns(t *testing.T) {
matches, err := Matches("/any/path/there", []string{})
if err != nil {
t.Fatal(err)
}
if matches {
t.Fatalf("Should not have match anything")
}
}
// Matches with malformed patterns
func TestMatchesWithMalformedPatterns(t *testing.T) {
matches, err := Matches("/any/path/there", []string{"["})
if err == nil {
t.Fatal("Should have failed because of a malformed syntax in the pattern")
}
if matches {
t.Fatalf("Should not have match anything")
}
}
// An empty string should return true from Empty.
func TestEmpty(t *testing.T) {
empty := empty("")
if !empty {
t.Errorf("failed to get true for an empty string, got %v", empty)
}
}
func TestCleanPatterns(t *testing.T) {
cleaned, _, _, _ := CleanPatterns([]string{"docs", "config"})
if len(cleaned) != 2 {
t.Errorf("expected 2 element slice, got %v", len(cleaned))
}
}
func TestCleanPatternsStripEmptyPatterns(t *testing.T) {
cleaned, _, _, _ := CleanPatterns([]string{"docs", "config", ""})
if len(cleaned) != 2 {
t.Errorf("expected 2 element slice, got %v", len(cleaned))
}
}
func TestCleanPatternsExceptionFlag(t *testing.T) {
_, _, exceptions, _ := CleanPatterns([]string{"docs", "!docs/README.md"})
if !exceptions {
t.Errorf("expected exceptions to be true, got %v", exceptions)
}
}
func TestCleanPatternsLeadingSpaceTrimmed(t *testing.T) {
_, _, exceptions, _ := CleanPatterns([]string{"docs", " !docs/README.md"})
if !exceptions {
t.Errorf("expected exceptions to be true, got %v", exceptions)
}
}
func TestCleanPatternsTrailingSpaceTrimmed(t *testing.T) {
_, _, exceptions, _ := CleanPatterns([]string{"docs", "!docs/README.md "})
if !exceptions {
t.Errorf("expected exceptions to be true, got %v", exceptions)
}
}
func TestCleanPatternsErrorSingleException(t *testing.T) {
_, _, _, err := CleanPatterns([]string{"!"})
if err == nil {
t.Errorf("expected error on single exclamation point, got %v", err)
}
}
func TestCleanPatternsFolderSplit(t *testing.T) {
_, dirs, _, _ := CleanPatterns([]string{"docs/config/CONFIG.md"})
if dirs[0][0] != "docs" {
t.Errorf("expected first element in dirs slice to be docs, got %v", dirs[0][1])
}
if dirs[0][1] != "config" {
t.Errorf("expected first element in dirs slice to be config, got %v", dirs[0][1])
}
}
func TestCreateIfNotExistsDir(t *testing.T) {
tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tempFolder)
folderToCreate := filepath.Join(tempFolder, "tocreate")
if err := CreateIfNotExists(folderToCreate, true); err != nil {
t.Fatal(err)
}
fileinfo, err := os.Stat(folderToCreate)
if err != nil {
t.Fatalf("Should have create a folder, got %v", err)
}
if !fileinfo.IsDir() {
t.Fatalf("Should have been a dir, seems it's not")
}
}
func TestCreateIfNotExistsFile(t *testing.T) {
tempFolder, err := ioutil.TempDir("", "docker-fileutils-test")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tempFolder)
fileToCreate := filepath.Join(tempFolder, "file/to/create")
if err := CreateIfNotExists(fileToCreate, false); err != nil {
t.Fatal(err)
}
fileinfo, err := os.Stat(fileToCreate)
if err != nil {
t.Fatalf("Should have create a file, got %v", err)
}
if fileinfo.IsDir() {
t.Fatalf("Should have been a file, seems it's not")
}
}