Start pulling pub from its own repo.

sdk/lib/_internal/pub/test/preprocess_test.dart

-// 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.
-
-library pub.test.preprocess_test;
-
-import 'package:pub_semver/pub_semver.dart';
-import 'package:unittest/unittest.dart';
-
-import '../lib/src/preprocess.dart';
-import 'test_pub.dart';
-
-main() {
-  initConfig();
-
-  test("does nothing on a file without preprocessor directives", () {
-    var text = '''
-some text
-// normal comment
-// #
- //# not beginning of line
-''';
-
-    expect(_preprocess(text), equals(text));
-  });
-
-  test("allows bare insert directive", () {
-    expect(_preprocess('//> foo'), equals('foo'));
-  });
-
-  test("allows empty insert directive", () {
-    expect(_preprocess('''
-//> foo
-//>
-//> bar
-'''), equals('foo\n\nbar\n'));
-  });
-
-  group("if", () {
-    group("with a version range", () {
-      test("removes sections with non-matching versions", () {
-        expect(_preprocess('''
-before
-//# if barback <1.0.0
-inside
-//# end
-after
-'''), equals('''
-before
-after
-'''));
-      });
-
-      test("doesn't insert section with non-matching versions", () {
-        expect(_preprocess('''
-before
-//# if barback <1.0.0
-//> inside
-//# end
-after
-'''), equals('''
-before
-after
-'''));
-      });
-
-      test("doesn't remove sections with matching versions", () {
-        expect(_preprocess('''
-before
-//# if barback >1.0.0
-inside
-//# end
-after
-'''), equals('''
-before
-inside
-after
-'''));
-      });
-
-      test("inserts sections with matching versions", () {
-        expect(_preprocess('''
-before
-//# if barback >1.0.0
-//> inside
-//# end
-after
-'''), equals('''
-before
-inside
-after
-'''));
-      });
-
-      test("allows multi-element version ranges", () {
-        expect(_preprocess('''
-before
-//# if barback >=1.0.0 <2.0.0
-inside 1
-//# end
-//# if barback >=0.9.0 <1.0.0
-inside 2
-//# end
-after
-'''), equals('''
-before
-inside 1
-after
-'''));
-      });
-    });
-
-    group("with a package name", () {
-      test("removes sections for a nonexistent package", () {
-        expect(_preprocess('''
-before
-//# if fblthp
-inside
-//# end
-after
-'''), equals('''
-before
-after
-'''));
-      });
-
-      test("doesn't insert sections for a nonexistent package", () {
-        expect(_preprocess('''
-before
-//# if fblthp
-//> inside
-//# end
-after
-'''), equals('''
-before
-after
-'''));
-      });
-
-      test("doesn't remove sections with an existent package", () {
-        expect(_preprocess('''
-before
-//# if barback
-inside
-//# end
-after
-'''), equals('''
-before
-inside
-after
-'''));
-      });
-
-      test("inserts sections with an existent package", () {
-        expect(_preprocess('''
-before
-//# if barback
-//> inside
-//# end
-after
-'''), equals('''
-before
-inside
-after
-'''));
-      });
-    });
-  });
-
-  group("else", () {
-    test("removes non-matching sections", () {
-      expect(_preprocess('''
-before
-//# if barback >1.0.0
-inside 1
-//# else
-inside 2
-//# end
-after
-'''), equals('''
-before
-inside 1
-after
-'''));
-    });
-
-    test("doesn't insert non-matching sections", () {
-      expect(_preprocess('''
-before
-//# if barback >1.0.0
-inside 1
-//# else
-//> inside 2
-//# end
-after
-'''), equals('''
-before
-inside 1
-after
-'''));
-    });
-
-    test("doesn't remove matching sections", () {
-      expect(_preprocess('''
-before
-//# if barback <1.0.0
-inside 1
-//# else
-inside 2
-//# end
-after
-'''), equals('''
-before
-inside 2
-after
-'''));
-    });
-
-    test("inserts matching sections", () {
-      expect(_preprocess('''
-before
-//# if barback <1.0.0
-inside 1
-//# else
-//> inside 2
-//# end
-after
-'''), equals('''
-before
-inside 2
-after
-'''));
-    });
-  });
-
-  group("errors", () {
-    test("disallows unknown statements", () {
-      expect(() => _preprocess('//# foo bar\n//# end'), throwsFormatException);
-    });
-
-    test("disallows insert directive without space", () {
-      expect(() => _preprocess('//>foo'), throwsFormatException);
-    });
-
-    group("if", () {
-      test("disallows if with no arguments", () {
-        expect(() => _preprocess('//# if\n//# end'), throwsFormatException);
-      });
-
-      test("disallows if with no package", () {
-        expect(() => _preprocess('//# if <=1.0.0\n//# end'),
-            throwsFormatException);
-      });
-
-      test("disallows invalid version constraint", () {
-        expect(() => _preprocess('//# if barback >=1.0\n//# end'),
-            throwsFormatException);
-      });
-
-      test("disallows dangling end", () {
-        expect(() => _preprocess('//# end'),
-            throwsFormatException);
-      });
-
-      test("disallows if without end", () {
-        expect(() => _preprocess('//# if barback >=1.0.0'),
-            throwsFormatException);
-      });
-
-      test("disallows nested if", () {
-        expect(() => _preprocess('''
-//# if barback >=1.0.0
-//# if barback >= 1.5.0
-//# end
-//# end
-'''),
-            throwsFormatException);
-      });
-    });
-
-    group("else", () {
-      test("disallows else without if", () {
-        expect(() => _preprocess('//# else\n//# end'), throwsFormatException);
-      });
-
-      test("disallows else without end", () {
-        expect(() => _preprocess('//# if barback >=1.0.0\n//# else'),
-            throwsFormatException);
-      });
-
-      test("disallows else with an argument", () {
-        expect(() => _preprocess('''
-//# if barback >=1.0.0
-//# else barback <0.5.0
-//# end
-'''), throwsFormatException);
-      });
-    });
-  });
-}
-
-String _preprocess(String input) =>
-    preprocess(input, {'barback': new Version.parse("1.2.3")}, 'source/url');