Index: test/backend/platform_selector/scanner_test.dart |
diff --git a/test/backend/platform_selector/scanner_test.dart b/test/backend/platform_selector/scanner_test.dart |
deleted file mode 100644 |
index 6ba9aeb54a9d459a845bcfcbe6e6faf496b59496..0000000000000000000000000000000000000000 |
--- a/test/backend/platform_selector/scanner_test.dart |
+++ /dev/null |
@@ -1,266 +0,0 @@ |
-// Copyright (c) 2015, 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 'package:test/test.dart'; |
-import 'package:test/src/backend/platform_selector/scanner.dart'; |
-import 'package:test/src/backend/platform_selector/token.dart'; |
- |
-void main() { |
- group("peek()", () { |
- test("returns the next token without consuming it", () { |
- var scanner = new Scanner("( )"); |
- expect(scanner.peek().type, equals(TokenType.leftParen)); |
- expect(scanner.peek().type, equals(TokenType.leftParen)); |
- expect(scanner.peek().type, equals(TokenType.leftParen)); |
- }); |
- |
- test("returns an end-of-file token at the end of a file", () { |
- var scanner = new Scanner("( )"); |
- scanner.next(); |
- scanner.next(); |
- |
- var token = scanner.peek(); |
- expect(token.type, equals(TokenType.endOfFile)); |
- expect(token.span.start.offset, equals(3)); |
- expect(token.span.end.offset, equals(3)); |
- }); |
- |
- test("throws a StateError if called after end-of-file was consumed", () { |
- var scanner = new Scanner("( )"); |
- scanner.next(); |
- scanner.next(); |
- scanner.next(); |
- expect(() => scanner.peek(), throwsStateError); |
- }); |
- }); |
- |
- group("next()", () { |
- test("consumes and returns the next token", () { |
- var scanner = new Scanner("( )"); |
- expect(scanner.next().type, equals(TokenType.leftParen)); |
- expect(scanner.peek().type, equals(TokenType.rightParen)); |
- expect(scanner.next().type, equals(TokenType.rightParen)); |
- }); |
- |
- test("returns an end-of-file token at the end of a file", () { |
- var scanner = new Scanner("( )"); |
- scanner.next(); |
- scanner.next(); |
- |
- var token = scanner.next(); |
- expect(token.type, equals(TokenType.endOfFile)); |
- expect(token.span.start.offset, equals(3)); |
- expect(token.span.end.offset, equals(3)); |
- }); |
- |
- test("throws a StateError if called after end-of-file was consumed", () { |
- var scanner = new Scanner("( )"); |
- scanner.next(); |
- scanner.next(); |
- scanner.next(); |
- expect(() => scanner.next(), throwsStateError); |
- }); |
- }); |
- |
- group("scan()", () { |
- test("consumes a matching token and returns true", () { |
- var scanner = new Scanner("( )"); |
- expect(scanner.scan(TokenType.leftParen), isTrue); |
- expect(scanner.peek().type, equals(TokenType.rightParen)); |
- }); |
- |
- test("doesn't consume a matching token and returns false", () { |
- var scanner = new Scanner("( )"); |
- expect(scanner.scan(TokenType.questionMark), isFalse); |
- expect(scanner.peek().type, equals(TokenType.leftParen)); |
- }); |
- |
- test("throws a StateError called after end-of-file was consumed", () { |
- var scanner = new Scanner("( )"); |
- scanner.next(); |
- scanner.next(); |
- scanner.next(); |
- expect(() => scanner.scan(TokenType.endOfFile), throwsStateError); |
- }); |
- }); |
- |
- group("scans a simple token:", () { |
- test("left paren", () => _expectSimpleScan("(", TokenType.leftParen)); |
- test("right paren", () => _expectSimpleScan(")", TokenType.rightParen)); |
- test("or", () => _expectSimpleScan("||", TokenType.or)); |
- test("and", () => _expectSimpleScan("&&", TokenType.and)); |
- test("not", () => _expectSimpleScan("!", TokenType.not)); |
- test("question mark", () => _expectSimpleScan("?", TokenType.questionMark)); |
- test("colon", () => _expectSimpleScan(":", TokenType.colon)); |
- }); |
- |
- group("scans an identifier that", () { |
- test("is simple", () { |
- var token = _scan(" foo "); |
- expect(token.name, equals("foo")); |
- expect(token.span.text, equals("foo")); |
- expect(token.span.start.offset, equals(3)); |
- expect(token.span.end.offset, equals(6)); |
- }); |
- |
- test("is a single character", () { |
- var token = _scan("f"); |
- expect(token.name, equals("f")); |
- }); |
- |
- test("has a leading underscore", () { |
- var token = _scan("_foo"); |
- expect(token.name, equals("_foo")); |
- }); |
- |
- test("has a leading dash", () { |
- var token = _scan("-foo"); |
- expect(token.name, equals("-foo")); |
- }); |
- |
- test("contains an underscore", () { |
- var token = _scan("foo_bar"); |
- expect(token.name, equals("foo_bar")); |
- }); |
- |
- test("contains a dash", () { |
- var token = _scan("foo-bar"); |
- expect(token.name, equals("foo-bar")); |
- }); |
- |
- test("is capitalized", () { |
- var token = _scan("FOO"); |
- expect(token.name, equals("FOO")); |
- }); |
- |
- test("contains numbers", () { |
- var token = _scan("foo123"); |
- expect(token.name, equals("foo123")); |
- }); |
- }); |
- |
- test("scans an empty selector", () { |
- expect(_scan("").type, equals(TokenType.endOfFile)); |
- }); |
- |
- test("scans multiple tokens", () { |
- var scanner = new Scanner("(foo && bar)"); |
- |
- var token = scanner.next(); |
- expect(token.type, equals(TokenType.leftParen)); |
- expect(token.span.start.offset, equals(0)); |
- expect(token.span.end.offset, equals(1)); |
- |
- token = scanner.next(); |
- expect(token.type, equals(TokenType.identifier)); |
- expect(token.name, equals("foo")); |
- expect(token.span.start.offset, equals(1)); |
- expect(token.span.end.offset, equals(4)); |
- |
- token = scanner.next(); |
- expect(token.type, equals(TokenType.and)); |
- expect(token.span.start.offset, equals(5)); |
- expect(token.span.end.offset, equals(7)); |
- |
- token = scanner.next(); |
- expect(token.type, equals(TokenType.identifier)); |
- expect(token.name, equals("bar")); |
- expect(token.span.start.offset, equals(8)); |
- expect(token.span.end.offset, equals(11)); |
- |
- token = scanner.next(); |
- expect(token.type, equals(TokenType.rightParen)); |
- expect(token.span.start.offset, equals(11)); |
- expect(token.span.end.offset, equals(12)); |
- |
- token = scanner.next(); |
- expect(token.type, equals(TokenType.endOfFile)); |
- expect(token.span.start.offset, equals(12)); |
- expect(token.span.end.offset, equals(12)); |
- }); |
- |
- group("ignores", () { |
- test("a single-line comment", () { |
- var scanner = new Scanner("( // &&\n// ||\n)"); |
- expect(scanner.next().type, equals(TokenType.leftParen)); |
- expect(scanner.next().type, equals(TokenType.rightParen)); |
- expect(scanner.next().type, equals(TokenType.endOfFile)); |
- }); |
- |
- test("a single-line comment without a trailing newline", () { |
- var scanner = new Scanner("( // &&"); |
- expect(scanner.next().type, equals(TokenType.leftParen)); |
- expect(scanner.next().type, equals(TokenType.endOfFile)); |
- }); |
- |
- test("a multi-line comment", () { |
- var scanner = new Scanner("( /* && * /\n|| */\n)"); |
- expect(scanner.next().type, equals(TokenType.leftParen)); |
- expect(scanner.next().type, equals(TokenType.rightParen)); |
- expect(scanner.next().type, equals(TokenType.endOfFile)); |
- }); |
- |
- test("a multi-line nested comment", () { |
- var scanner = new Scanner("(/* && /* ? /* || */ : */ ! */)"); |
- expect(scanner.next().type, equals(TokenType.leftParen)); |
- expect(scanner.next().type, equals(TokenType.rightParen)); |
- expect(scanner.next().type, equals(TokenType.endOfFile)); |
- }); |
- |
- test("Dart's notion of whitespace", () { |
- var scanner = new Scanner("( \t \n)"); |
- expect(scanner.next().type, equals(TokenType.leftParen)); |
- expect(scanner.next().type, equals(TokenType.rightParen)); |
- expect(scanner.next().type, equals(TokenType.endOfFile)); |
- }); |
- }); |
- |
- group("disallows", () { |
- test("a single |", () { |
- expect(() => _scan("|"), throwsFormatException); |
- }); |
- |
- test('"| |"', () { |
- expect(() => _scan("| |"), throwsFormatException); |
- }); |
- |
- test("a single &", () { |
- expect(() => _scan("&"), throwsFormatException); |
- }); |
- |
- test('"& &"', () { |
- expect(() => _scan("& &"), throwsFormatException); |
- }); |
- |
- test("an unknown operator", () { |
- expect(() => _scan("=="), throwsFormatException); |
- }); |
- |
- test("unicode", () { |
- expect(() => _scan("öh"), throwsFormatException); |
- }); |
- |
- test("an unclosed multi-line comment", () { |
- expect(() => _scan("/*"), throwsFormatException); |
- }); |
- |
- test("an unopened multi-line comment", () { |
- expect(() => _scan("*/"), throwsFormatException); |
- }); |
- }); |
-} |
- |
-/// Asserts that the first token scanned from [selector] has type [type], |
-/// and that that token's span is exactly [selector]. |
-void _expectSimpleScan(String selector, TokenType type) { |
- // Complicate the selector to test that the span covers it correctly. |
- var token = _scan(" $selector "); |
- expect(token.type, equals(type)); |
- expect(token.span.text, equals(selector)); |
- expect(token.span.start.offset, equals(3)); |
- expect(token.span.end.offset, equals(3 + selector.length)); |
-} |
- |
-/// Scans a single token from [selector]. |
-Token _scan(String selector) => new Scanner(selector).next(); |