directory-per-package step 1: move files from lib/X.go to lib/X/X.go

no substantive changes except:
	- new Makefiles, all auto-generated
	- go/src/lib/Makefile has been extensively edited

R=rsc
OCL=28310
CL=28310

src/lib/path/path_test.go

@@ -0,0 +1,136 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package path
+
+import (
+	"path";
+	"testing"
+)
+
+type CleanTest struct {
+	path, clean string
+}
+
+var cleantests = []CleanTest {
+	// Already clean
+	CleanTest{"", "."},
+	CleanTest{"abc", "abc"},
+	CleanTest{"abc/def", "abc/def"},
+	CleanTest{"a/b/c", "a/b/c"},
+	CleanTest{".", "."},
+	CleanTest{"..", ".."},
+	CleanTest{"../..", "../.."},
+	CleanTest{"../../abc", "../../abc"},
+	CleanTest{"/abc", "/abc"},
+	CleanTest{"/", "/"},
+
+	// Remove trailing slash
+	CleanTest{"abc/", "abc"},
+	CleanTest{"abc/def/", "abc/def"},
+	CleanTest{"a/b/c/", "a/b/c"},
+	CleanTest{"./", "."},
+	CleanTest{"../", ".."},
+	CleanTest{"../../", "../.."},
+	CleanTest{"/abc/", "/abc"},
+
+	// Remove doubled slash
+	CleanTest{"abc//def//ghi", "abc/def/ghi"},
+	CleanTest{"//abc", "/abc"},
+	CleanTest{"///abc", "/abc"},
+	CleanTest{"//abc//", "/abc"},
+	CleanTest{"abc//", "abc"},
+
+	// Remove . elements
+	CleanTest{"abc/./def", "abc/def"},
+	CleanTest{"/./abc/def", "/abc/def"},
+	CleanTest{"abc/.", "abc"},
+
+	// Remove .. elements
+	CleanTest{"abc/def/ghi/../jkl", "abc/def/jkl"},
+	CleanTest{"abc/def/../ghi/../jkl", "abc/jkl"},
+	CleanTest{"abc/def/..", "abc"},
+	CleanTest{"abc/def/../..", "."},
+	CleanTest{"/abc/def/../..", "/"},
+	CleanTest{"abc/def/../../..", ".."},
+	CleanTest{"/abc/def/../../..", "/"},
+	CleanTest{"abc/def/../../../ghi/jkl/../../../mno", "../../mno"},
+
+	// Combinations
+	CleanTest{"abc/./../def", "def"},
+	CleanTest{"abc//./../def", "def"},
+	CleanTest{"abc/../../././../def", "../../def"},
+}
+
+func TestClean(t *testing.T) {
+	for i, test := range cleantests {
+		if s := Clean(test.path); s != test.clean {
+			t.Errorf("Clean(%q) = %q, want %q", test.path, s, test.clean);
+		}
+	}
+}
+
+type SplitTest struct {
+	path, dir, file string
+}
+
+var splittests = []SplitTest {
+	SplitTest{"a/b", "a/", "b"},
+	SplitTest{"a/b/", "a/b/", ""},
+	SplitTest{"a/", "a/", ""},
+	SplitTest{"a", "", "a"},
+	SplitTest{"/", "/", ""},
+}
+
+func TestSplit(t *testing.T) {
+	for i, test := range splittests {
+		if d, f := Split(test.path); d != test.dir || f != test.file {
+			t.Errorf("Split(%q) = %q, %q, want %q, %q", test.path, d, f, test.dir, test.file);
+		}
+	}
+}
+
+type JoinTest struct {
+	dir, file, path string
+}
+
+var jointests = []JoinTest {
+	JoinTest{"a", "b", "a/b"},
+	JoinTest{"a", "", "a"},
+	JoinTest{"", "b", "b"},
+	JoinTest{"/", "a", "/a"},
+	JoinTest{"/", "", "/"},
+	JoinTest{"a/", "b", "a/b"},
+	JoinTest{"a/", "", "a"},
+}
+
+func TestJoin(t *testing.T) {
+	for i, test := range jointests {
+		if p := Join(test.dir, test.file); p != test.path {
+			t.Errorf("Join(%q, %q) = %q, want %q", test.dir, test.file, p, test.path);
+		}
+	}
+}
+
+type ExtTest struct {
+	path, ext string
+}
+
+var exttests = []ExtTest {
+	ExtTest{"path.go", ".go"},
+	ExtTest{"path.pb.go", ".go"},
+	ExtTest{"path", ""},
+	ExtTest{"a.dir/b", ""},
+	ExtTest{"a.dir/b.go", ".go"},
+	ExtTest{"a.dir/", ""},
+}
+
+func TestExt(t *testing.T) {
+	for i, test := range exttests {
+		if x := Ext(test.path); x != test.ext {
+			t.Errorf("Ext(%q) = %q, want %q", test.path, x, test.ext);
+		}
+	}
+}
+