Move top level packages to internal.

internal/scanner/walk_test.go

@@ -0,0 +1,172 @@
+// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
+// All rights reserved. Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file.
+
+package scanner
+
+import (
+	"bytes"
+	"fmt"
+	"path/filepath"
+	"reflect"
+	rdebug "runtime/debug"
+	"sort"
+	"testing"
+
+	"github.com/syncthing/syncthing/internal/ignore"
+	"github.com/syncthing/syncthing/internal/protocol"
+)
+
+type testfile struct {
+	name string
+	size int
+	hash string
+}
+
+type testfileList []testfile
+
+var testdata = testfileList{
+	{"afile", 4, "b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c"},
+	{"dir1", 128, ""},
+	{filepath.Join("dir1", "dfile"), 5, "49ae93732fcf8d63fe1cce759664982dbd5b23161f007dba8561862adc96d063"},
+	{"dir2", 128, ""},
+	{filepath.Join("dir2", "cfile"), 4, "bf07a7fbb825fc0aae7bf4a1177b2b31fcf8a3feeaf7092761e18c859ee52a9c"},
+	{"excludes", 37, "df90b52f0c55dba7a7a940affe482571563b1ac57bd5be4d8a0291e7de928e06"},
+	{"further-excludes", 5, "7eb0a548094fa6295f7fd9200d69973e5f5ec5c04f2a86d998080ac43ecf89f1"},
+}
+
+var correctIgnores = map[string][]string{
+	".": {".*", "quux"},
+}
+
+func init() {
+	// This test runs the risk of entering infinite recursion if it fails.
+	// Limit the stack size to 10 megs to creash early in that case instead of
+	// potentially taking down the box...
+	rdebug.SetMaxStack(10 * 1 << 20)
+}
+
+func TestWalkSub(t *testing.T) {
+	ignores, err := ignore.Load("testdata/.stignore")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	w := Walker{
+		Dir:       "testdata",
+		Sub:       "dir2",
+		BlockSize: 128 * 1024,
+		Ignores:   ignores,
+	}
+	fchan, err := w.Walk()
+	var files []protocol.FileInfo
+	for f := range fchan {
+		files = append(files, f)
+	}
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// The directory contains two files, where one is ignored from a higher
+	// level. We should see only the directory and one of the files.
+
+	if len(files) != 2 {
+		t.Fatalf("Incorrect length %d != 2", len(files))
+	}
+	if files[0].Name != "dir2" {
+		t.Errorf("Incorrect file %v != dir2", files[0])
+	}
+	if files[1].Name != filepath.Join("dir2", "cfile") {
+		t.Errorf("Incorrect file %v != dir2/cfile", files[1])
+	}
+}
+
+func TestWalk(t *testing.T) {
+	ignores, err := ignore.Load("testdata/.stignore")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(ignores)
+
+	w := Walker{
+		Dir:       "testdata",
+		BlockSize: 128 * 1024,
+		Ignores:   ignores,
+	}
+
+	fchan, err := w.Walk()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var tmp []protocol.FileInfo
+	for f := range fchan {
+		tmp = append(tmp, f)
+	}
+	sort.Sort(fileList(tmp))
+	files := fileList(tmp).testfiles()
+
+	if !reflect.DeepEqual(files, testdata) {
+		t.Errorf("Walk returned unexpected data\nExpected: %v\nActual: %v", testdata, files)
+	}
+}
+
+func TestWalkError(t *testing.T) {
+	w := Walker{
+		Dir:       "testdata-missing",
+		BlockSize: 128 * 1024,
+	}
+	_, err := w.Walk()
+
+	if err == nil {
+		t.Error("no error from missing directory")
+	}
+
+	w = Walker{
+		Dir:       "testdata/bar",
+		BlockSize: 128 * 1024,
+	}
+	_, err = w.Walk()
+
+	if err == nil {
+		t.Error("no error from non-directory")
+	}
+}
+
+type fileList []protocol.FileInfo
+
+func (f fileList) Len() int {
+	return len(f)
+}
+
+func (f fileList) Less(a, b int) bool {
+	return f[a].Name < f[b].Name
+}
+
+func (f fileList) Swap(a, b int) {
+	f[a], f[b] = f[b], f[a]
+}
+
+func (l fileList) testfiles() testfileList {
+	testfiles := make(testfileList, len(l))
+	for i, f := range l {
+		if len(f.Blocks) > 1 {
+			panic("simple test case stuff only supports a single block per file")
+		}
+		testfiles[i] = testfile{name: f.Name, size: int(f.Size())}
+		if len(f.Blocks) == 1 {
+			testfiles[i].hash = fmt.Sprintf("%x", f.Blocks[0].Hash)
+		}
+	}
+	return testfiles
+}
+
+func (l testfileList) String() string {
+	var b bytes.Buffer
+	b.WriteString("{\n")
+	for _, f := range l {
+		fmt.Fprintf(&b, "  %s (%d bytes): %s\n", f.name, f.size, f.hash)
+	}
+	b.WriteString("}")
+	return b.String()
+}