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packages/glob/test/list_test.dart

Index: packages/glob/test/list_test.dart
diff --git a/packages/glob/test/list_test.dart b/packages/glob/test/list_test.dart
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+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:glob/glob.dart';
+import 'package:glob/src/utils.dart';
+import 'package:path/path.dart' as p;
+import 'package:scheduled_test/descriptor.dart' as d;
+import 'package:scheduled_test/scheduled_test.dart';
+
+String sandbox;
+
+void main() {
+  setUp(() {
+    scheduleSandbox();
+
+    d.dir("foo", [
+      d.file("bar"),
+      d.dir("baz", [
+        d.file("bang"),
+        d.file("qux")
+      ])
+    ]).create();
+  });
+
+  group("list()", () {
+    test("fails if the context doesn't match the system context", () {
+      expect(new Glob("*", context: p.url).list, throwsStateError);
+    });
+
+    test("reports exceptions for non-existent directories", () {
+      schedule(() {
+        expect(new Glob("non/existent/**").list().toList(),
+            throwsA(new isInstanceOf<FileSystemException>()));
+      });
+    });
+  });
+
+  group("listSync()", () {
+    test("fails if the context doesn't match the system context", () {
+      expect(new Glob("*", context: p.url).listSync, throwsStateError);
+    });
+
+    test("reports exceptions for non-existent directories", () {
+      schedule(() {
+        expect(new Glob("non/existent/**").listSync,
+            throwsA(new isInstanceOf<FileSystemException>()));
+      });
+    });
+  });
+
+  syncAndAsync((list) {
+    group("literals", () {
+      test("lists a single literal", () {
+        expect(list("foo/baz/qux"),
+            completion(equals([p.join("foo", "baz", "qux")])));
+      });
+
+      test("lists a non-matching literal", () {
+        expect(list("foo/baz/nothing"), completion(isEmpty));
+      });
+    });
+
+    group("star", () {
+      test("lists within filenames but not across directories", () {
+        expect(list("foo/b*"), completion(unorderedEquals([
+          p.join("foo", "bar"),
+          p.join("foo", "baz")
+        ])));
+      });
+
+      test("lists the empy string", () {
+        expect(list("foo/bar*"), completion(equals([p.join("foo", "bar")])));
+      });
+    });
+
+    group("double star", () {
+      test("lists within filenames", () {
+        expect(list("foo/baz/**"), completion(unorderedEquals([
+          p.join("foo", "baz", "qux"),
+          p.join("foo", "baz", "bang")
+        ])));
+      });
+
+      test("lists the empty string", () {
+        expect(list("foo/bar**"), completion(equals([p.join("foo", "bar")])));
+      });
+
+      test("lists recursively", () {
+        expect(list("foo/**"), completion(unorderedEquals([
+          p.join("foo", "bar"),
+          p.join("foo", "baz"),
+          p.join("foo", "baz", "qux"),
+          p.join("foo", "baz", "bang")
+        ])));
+      });
+
+      test("combines with literals", () {
+        expect(list("foo/ba**"), completion(unorderedEquals([
+          p.join("foo", "bar"),
+          p.join("foo", "baz"),
+          p.join("foo", "baz", "qux"),
+          p.join("foo", "baz", "bang")
+        ])));
+      });
+
+      test("lists recursively in the middle of a glob", () {
+        d.dir("deep", [
+          d.dir("a", [
+            d.dir("b", [
+              d.dir("c", [
+                d.file("d"),
+                d.file("long-file")
+              ]),
+              d.dir("long-dir", [d.file("x")])
+            ])
+          ])
+        ]).create();
+
+        expect(list("deep/**/?/?"), completion(unorderedEquals([
+          p.join("deep", "a", "b", "c"),
+          p.join("deep", "a", "b", "c", "d")
+        ])));
+      });
+    });
+
+    group("any char", () {
+      test("matches a character", () {
+        expect(list("foo/ba?"), completion(unorderedEquals([
+          p.join("foo", "bar"),
+          p.join("foo", "baz")
+        ])));
+      });
+
+      test("doesn't match a separator", () {
+        expect(list("foo?bar"), completion(isEmpty));
+      });
+    });
+
+    group("range", () {
+      test("matches a range of characters", () {
+        expect(list("foo/ba[a-z]"), completion(unorderedEquals([
+          p.join("foo", "bar"),
+          p.join("foo", "baz")
+        ])));
+      });
+
+      test("matches a specific list of characters", () {
+        expect(list("foo/ba[rz]"), completion(unorderedEquals([
+          p.join("foo", "bar"),
+          p.join("foo", "baz")
+        ])));
+      });
+
+      test("doesn't match outside its range", () {
+        expect(list("foo/ba[a-x]"),
+            completion(unorderedEquals([p.join("foo", "bar")])));
+      });
+
+      test("doesn't match outside its specific list", () {
+        expect(list("foo/ba[rx]"),
+            completion(unorderedEquals([p.join("foo", "bar")])));
+      });
+    });
+
+    test("the same file shouldn't be non-recursively listed multiple times",
+        () {
+      d.dir("multi", [
+        d.dir("start-end", [d.file("file")])
+      ]).create();
+
+      expect(list("multi/{start-*/f*,*-end/*e}"),
+          completion(equals([p.join("multi", "start-end", "file")])));
+    });
+
+    test("the same file shouldn't be recursively listed multiple times", () {
+      d.dir("multi", [
+        d.dir("a", [
+          d.dir("b", [
+            d.file("file"),
+            d.dir("c", [
+              d.file("file")
+            ])
+          ]),
+          d.dir("x", [
+            d.dir("y", [
+              d.file("file")
+            ])
+          ])
+        ])
+      ]).create();
+
+      expect(list("multi/{*/*/*/file,a/**/file}"), completion(unorderedEquals([
+        p.join("multi", "a", "b", "file"),
+        p.join("multi", "a", "b", "c", "file"),
+        p.join("multi", "a", "x", "y", "file")
+      ])));
+    });
+
+    group("with symlinks", () {
+      setUp(() {
+        schedule(() {
+          return new Link(p.join(sandbox, "dir", "link"))
+              .create(p.join(sandbox, "foo", "baz"), recursive: true);
+        }, "symlink foo/baz to dir/link");
+      });
+
+      test("follows symlinks by default", () {
+        expect(list("dir/**"), completion(unorderedEquals([
+          p.join("dir", "link"),
+          p.join("dir", "link", "bang"),
+          p.join("dir", "link", "qux")
+        ])));
+      });
+
+      test("doesn't follow symlinks with followLinks: false", () {
+        expect(list("dir/**", followLinks: false),
+            completion(equals([p.join("dir", "link")])));
+      });
+
+      test("shouldn't crash on broken symlinks", () {
+        schedule(() {
+          return new Directory(p.join(sandbox, "foo")).delete(recursive: true);
+        });
+
+        expect(list("dir/**"), completion(equals([p.join("dir", "link")])));
+      });
+    });
+
+    test("always lists recursively with recursive: true", () {
+      expect(list("foo", recursive: true), completion(unorderedEquals([
+        "foo",
+        p.join("foo", "bar"),
+        p.join("foo", "baz"),
+        p.join("foo", "baz", "qux"),
+        p.join("foo", "baz", "bang")
+      ])));
+    });
+
+    test("lists an absolute glob", () {
+      expect(schedule(() {
+        var pattern = separatorToForwardSlash(
+            p.absolute(p.join(sandbox, 'foo/baz/**')));
+
+        return list(pattern);
+      }), completion(unorderedEquals([
+        p.join("foo", "baz", "bang"),
+        p.join("foo", "baz", "qux")
+      ])));
+    });
+
+    test("lists a subdirectory that sometimes exists", () {
+      d.dir("top", [
+        d.dir("dir1", [
+          d.dir("subdir", [d.file("file")])
+        ]),
+        d.dir("dir2", [])
+      ]).create();
+
+      expect(list("top/*/subdir/**"),
+          completion(equals([p.join("top", "dir1", "subdir", "file")])));
+    });
+  });
+}
+
+typedef Future<List<String>> ListFn(String glob,
+    {bool recursive, bool followLinks});
+
+/// Runs [callback] in two groups with two values of [listFn]: one that uses
+/// [Glob.list], one that uses [Glob.listSync].
+void syncAndAsync(callback(ListFn listFn)) {
+  group("async", () {
+    callback((glob, {recursive: false, followLinks: true}) {
+      return schedule(() {
+        return new Glob(glob, recursive: recursive)
+            .list(root: sandbox, followLinks: followLinks)
+            .map((entity) => p.relative(entity.path, from: sandbox))
+            .toList();
+      }, 'listing $glob');
+    });
+  });
+
+  group("sync", () {
+    callback((glob, {recursive: false, followLinks: true}) {
+      return schedule(() {
+        return new Glob(glob, recursive: recursive)
+            .listSync(root: sandbox, followLinks: followLinks)
+            .map((entity) => p.relative(entity.path, from: sandbox))
+            .toList();
+      }, 'listing $glob');
+    });
+  });
+}
+
+void scheduleSandbox() {
+  schedule(() {
+    return Directory.systemTemp.createTemp('glob_').then((dir) {
+      sandbox = dir.path;
+      d.defaultRoot = sandbox;
+    });
+  }, 'creating sandbox');
+
+  currentSchedule.onComplete.schedule(() {
+    d.defaultRoot = null;
+    if (sandbox == null) return null;
+    var oldSandbox = sandbox;
+    sandbox = null;
+    return new Directory(oldSandbox).delete(recursive: true);
+  });
+}