120 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Go
		
	
	
			
		
		
	
	
			120 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Go
		
	
	
package storage
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import (
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	"fmt"
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	"testing"
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	"github.com/docker/distribution/registry/storage/driver"
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	"github.com/docker/distribution/registry/storage/driver/inmemory"
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)
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func testFS(t *testing.T) (driver.StorageDriver, map[string]string) {
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	d := inmemory.New()
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	c := []byte("")
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	if err := d.PutContent("/a/b/c/d", c); err != nil {
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		t.Fatalf("Unable to put to inmemory fs")
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	}
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	if err := d.PutContent("/a/b/c/e", c); err != nil {
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		t.Fatalf("Unable to put to inmemory fs")
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	}
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	expected := map[string]string{
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		"/a":       "dir",
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		"/a/b":     "dir",
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		"/a/b/c":   "dir",
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		"/a/b/c/d": "file",
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		"/a/b/c/e": "file",
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	}
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	return d, expected
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}
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func TestWalkErrors(t *testing.T) {
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	d, expected := testFS(t)
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	fileCount := len(expected)
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	err := Walk(d, "", func(fileInfo driver.FileInfo) error {
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		return nil
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	})
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	if err == nil {
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		t.Error("Expected invalid root err")
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	}
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	err = Walk(d, "/", func(fileInfo driver.FileInfo) error {
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		// error on the 2nd file
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		if fileInfo.Path() == "/a/b" {
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			return fmt.Errorf("Early termination")
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		}
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		delete(expected, fileInfo.Path())
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		return nil
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	})
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	if len(expected) != fileCount-1 {
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		t.Error("Walk failed to terminate with error")
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	}
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	if err != nil {
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		t.Error(err.Error())
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	}
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	err = Walk(d, "/nonexistant", func(fileInfo driver.FileInfo) error {
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		return nil
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	})
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	if err == nil {
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		t.Errorf("Expected missing file err")
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	}
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}
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func TestWalk(t *testing.T) {
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	d, expected := testFS(t)
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	err := Walk(d, "/", func(fileInfo driver.FileInfo) error {
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		filePath := fileInfo.Path()
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		filetype, ok := expected[filePath]
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		if !ok {
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			t.Fatalf("Unexpected file in walk: %q", filePath)
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		}
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		if fileInfo.IsDir() {
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			if filetype != "dir" {
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				t.Errorf("Unexpected file type: %q", filePath)
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			}
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		} else {
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			if filetype != "file" {
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				t.Errorf("Unexpected file type: %q", filePath)
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			}
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		}
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		delete(expected, filePath)
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		return nil
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	})
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	if len(expected) > 0 {
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		t.Errorf("Missed files in walk: %q", expected)
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	}
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	if err != nil {
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		t.Fatalf(err.Error())
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	}
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}
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func TestWalkSkipDir(t *testing.T) {
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	d, expected := testFS(t)
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	err := Walk(d, "/", func(fileInfo driver.FileInfo) error {
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		filePath := fileInfo.Path()
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		if filePath == "/a/b" {
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			// skip processing /a/b/c and /a/b/c/d
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			return ErrSkipDir
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		}
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		delete(expected, filePath)
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		return nil
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	})
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	if err != nil {
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		t.Fatalf(err.Error())
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	}
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	if _, ok := expected["/a/b/c"]; !ok {
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		t.Errorf("/a/b/c not skipped")
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	}
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	if _, ok := expected["/a/b/c/d"]; !ok {
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		t.Errorf("/a/b/c/d not skipped")
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	}
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	if _, ok := expected["/a/b/c/e"]; !ok {
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		t.Errorf("/a/b/c/e not skipped")
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	}
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}
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