Move scanner tests into the front_end package.

pkg/analyzer/test/generated/scanner_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 analyzer.test.generated.scanner_test;
 
 import 'package:analyzer/dart/ast/token.dart';
-import 'package:analyzer/error/error.dart';
-import 'package:analyzer/error/listener.dart';
 import 'package:analyzer/src/dart/ast/token.dart';
 import 'package:analyzer/src/dart/scanner/reader.dart';
 import 'package:analyzer/src/dart/scanner/scanner.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import 'test_support.dart';
 
 main() {
   defineReflectiveSuite(() {
-    defineReflectiveTests(CharSequenceReaderTest);
-    defineReflectiveTests(KeywordStateTest);
-    defineReflectiveTests(ScannerTest);
-    defineReflectiveTests(TokenTypeTest);
+    defineReflectiveTests(LineInfoTest);
   });
 }
 
 class CharacterRangeReaderTest extends EngineTestCase {
   void test_advance() {
     CharSequenceReader baseReader = new CharSequenceReader("xyzzy");
     CharacterRangeReader reader = new CharacterRangeReader(baseReader, 1, 4);
     expect(reader.advance(), 0x79);
     expect(reader.advance(), 0x80);
     expect(reader.advance(), 0x80);
@@ skipping 40 matching lines @@
 
   void test_setOffset() {
     CharSequenceReader baseReader = new CharSequenceReader("xyzzy");
     CharacterRangeReader reader = new CharacterRangeReader(baseReader, 1, 4);
     reader.offset = 2;
     expect(reader.offset, 2);
   }
 }
 
 @reflectiveTest
-class CharSequenceReaderTest {
-  void test_advance() {
-    CharSequenceReader reader = new CharSequenceReader("x");
-    expect(reader.advance(), 0x78);
-    expect(reader.advance(), -1);
-    expect(reader.advance(), -1);
-  }
-
-  void test_creation() {
-    expect(new CharSequenceReader("x"), isNotNull);
-  }
-
-  void test_getOffset() {
-    CharSequenceReader reader = new CharSequenceReader("x");
-    expect(reader.offset, -1);
-    reader.advance();
-    expect(reader.offset, 0);
-    reader.advance();
-    expect(reader.offset, 0);
-  }
-
-  void test_getString() {
-    CharSequenceReader reader = new CharSequenceReader("xyzzy");
-    reader.offset = 3;
-    expect(reader.getString(1, 0), "yzz");
-    expect(reader.getString(2, 1), "zzy");
-  }
-
-  void test_peek() {
-    CharSequenceReader reader = new CharSequenceReader("xy");
-    expect(reader.peek(), 0x78);
-    expect(reader.peek(), 0x78);
-    reader.advance();
-    expect(reader.peek(), 0x79);
-    expect(reader.peek(), 0x79);
-    reader.advance();
-    expect(reader.peek(), -1);
-    expect(reader.peek(), -1);
-  }
-
-  void test_setOffset() {
-    CharSequenceReader reader = new CharSequenceReader("xyz");
-    reader.offset = 2;
-    expect(reader.offset, 2);
-  }
-}
-
-@reflectiveTest
-class KeywordStateTest {
-  void test_KeywordState() {
-    //
-    // Generate the test data to be scanned.
-    //
-    List<Keyword> keywords = Keyword.values;
-    int keywordCount = keywords.length;
-    List<String> textToTest = new List<String>(keywordCount * 3);
-    for (int i = 0; i < keywordCount; i++) {
-      String syntax = keywords[i].syntax;
-      textToTest[i] = syntax;
-      textToTest[i + keywordCount] = "${syntax}x";
-      textToTest[i + keywordCount * 2] = syntax.substring(0, syntax.length - 1);
-    }
-    //
-    // Scan each of the identifiers.
-    //
-    KeywordState firstState = KeywordState.KEYWORD_STATE;
-    for (int i = 0; i < textToTest.length; i++) {
-      String text = textToTest[i];
-      int index = 0;
-      int length = text.length;
-      KeywordState state = firstState;
-      while (index < length && state != null) {
-        state = state.next(text.codeUnitAt(index));
-        index++;
-      }
-      if (i < keywordCount) {
-        // keyword
-        expect(state, isNotNull);
-        expect(state.keyword(), isNotNull);
-        expect(state.keyword(), keywords[i]);
-      } else if (i < keywordCount * 2) {
-        // keyword + "x"
-        expect(state, isNull);
-      } else {
-        // keyword.substring(0, keyword.length() - 1)
-        expect(state, isNotNull);
-      }
-    }
-  }
-}
-
-@reflectiveTest
-class ScannerTest {
-  void fail_incomplete_string_interpolation() {
-    // https://code.google.com/p/dart/issues/detail?id=18073
-    _assertErrorAndTokens(
-        ScannerErrorCode.UNTERMINATED_STRING_LITERAL, 9, "\"foo \${bar", [
-      new StringToken(TokenType.STRING, "\"foo ", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_EXPRESSION, "\${", 5),
-      new StringToken(TokenType.IDENTIFIER, "bar", 7)
-    ]);
-  }
-
-  void test_ampersand() {
-    _assertToken(TokenType.AMPERSAND, "&");
-  }
-
-  void test_ampersand_ampersand() {
-    _assertToken(TokenType.AMPERSAND_AMPERSAND, "&&");
-  }
-
-  void test_ampersand_ampersand_eq() {
-    _assertToken(TokenType.AMPERSAND_AMPERSAND_EQ, "&&=",
-        lazyAssignmentOperators: true);
-  }
-
-  void test_ampersand_eq() {
-    _assertToken(TokenType.AMPERSAND_EQ, "&=");
-  }
-
-  void test_at() {
-    _assertToken(TokenType.AT, "@");
-  }
-
-  void test_backping() {
-    _assertToken(TokenType.BACKPING, "`");
-  }
-
-  void test_backslash() {
-    _assertToken(TokenType.BACKSLASH, "\\");
-  }
-
-  void test_bang() {
-    _assertToken(TokenType.BANG, "!");
-  }
-
-  void test_bang_eq() {
-    _assertToken(TokenType.BANG_EQ, "!=");
-  }
-
-  void test_bar() {
-    _assertToken(TokenType.BAR, "|");
-  }
-
-  void test_bar_bar() {
-    _assertToken(TokenType.BAR_BAR, "||");
-  }
-
-  void test_bar_bar_eq() {
-    _assertToken(TokenType.BAR_BAR_EQ, "||=", lazyAssignmentOperators: true);
-  }
-
-  void test_bar_eq() {
-    _assertToken(TokenType.BAR_EQ, "|=");
-  }
-
-  void test_caret() {
-    _assertToken(TokenType.CARET, "^");
-  }
-
-  void test_caret_eq() {
-    _assertToken(TokenType.CARET_EQ, "^=");
-  }
-
-  void test_close_curly_bracket() {
-    _assertToken(TokenType.CLOSE_CURLY_BRACKET, "}");
-  }
-
-  void test_close_paren() {
-    _assertToken(TokenType.CLOSE_PAREN, ")");
-  }
-
-  void test_close_quare_bracket() {
-    _assertToken(TokenType.CLOSE_SQUARE_BRACKET, "]");
-  }
-
-  void test_colon() {
-    _assertToken(TokenType.COLON, ":");
-  }
-
-  void test_comma() {
-    _assertToken(TokenType.COMMA, ",");
-  }
-
-  void test_comment_disabled_multi() {
-    Scanner scanner = new Scanner(
-        null,
-        new CharSequenceReader("/* comment */ "),
-        AnalysisErrorListener.NULL_LISTENER);
-    scanner.preserveComments = false;
-    Token token = scanner.tokenize();
-    expect(token, isNotNull);
-    expect(token.precedingComments, isNull);
-  }
-
-  void test_comment_generic_method_type_assign() {
-    _assertComment(TokenType.MULTI_LINE_COMMENT, "/*=comment*/");
-    _assertComment(TokenType.GENERIC_METHOD_TYPE_ASSIGN, "/*=comment*/",
-        genericMethodComments: true);
-  }
-
-  void test_comment_generic_method_type_list() {
-    _assertComment(TokenType.MULTI_LINE_COMMENT, "/*<comment>*/");
-    _assertComment(TokenType.GENERIC_METHOD_TYPE_LIST, "/*<comment>*/",
-        genericMethodComments: true);
-  }
-
-  void test_comment_multi() {
-    _assertComment(TokenType.MULTI_LINE_COMMENT, "/* comment */");
-  }
-
-  void test_comment_multi_lineEnds() {
-    String code = r'''
-/**
- * aa
- * bbb
- * c
- */''';
-    GatheringErrorListener listener = new GatheringErrorListener();
-    Scanner scanner = new Scanner(null, new CharSequenceReader(code), listener);
-    scanner.tokenize();
-    expect(
-        scanner.lineStarts,
-        equals(<int>[
-          code.indexOf('/**'),
-          code.indexOf(' * aa'),
-          code.indexOf(' * bbb'),
-          code.indexOf(' * c'),
-          code.indexOf(' */')
-        ]));
-  }
-
-  void test_comment_multi_unterminated() {
-    _assertError(ScannerErrorCode.UNTERMINATED_MULTI_LINE_COMMENT, 3, "/* x");
-  }
-
-  void test_comment_nested() {
-    _assertComment(
-        TokenType.MULTI_LINE_COMMENT, "/* comment /* within a */ comment */");
-  }
-
-  void test_comment_single() {
-    _assertComment(TokenType.SINGLE_LINE_COMMENT, "// comment");
-  }
-
-  void test_double_both_E() {
-    _assertToken(TokenType.DOUBLE, "0.123E4");
-  }
-
-  void test_double_both_e() {
-    _assertToken(TokenType.DOUBLE, "0.123e4");
-  }
-
-  void test_double_fraction() {
-    _assertToken(TokenType.DOUBLE, ".123");
-  }
-
-  void test_double_fraction_E() {
-    _assertToken(TokenType.DOUBLE, ".123E4");
-  }
-
-  void test_double_fraction_e() {
-    _assertToken(TokenType.DOUBLE, ".123e4");
-  }
-
-  void test_double_missingDigitInExponent() {
-    _assertError(ScannerErrorCode.MISSING_DIGIT, 1, "1e");
-  }
-
-  void test_double_whole_E() {
-    _assertToken(TokenType.DOUBLE, "12E4");
-  }
-
-  void test_double_whole_e() {
-    _assertToken(TokenType.DOUBLE, "12e4");
-  }
-
-  void test_eq() {
-    _assertToken(TokenType.EQ, "=");
-  }
-
-  void test_eq_eq() {
-    _assertToken(TokenType.EQ_EQ, "==");
-  }
-
-  void test_gt() {
-    _assertToken(TokenType.GT, ">");
-  }
-
-  void test_gt_eq() {
-    _assertToken(TokenType.GT_EQ, ">=");
-  }
-
-  void test_gt_gt() {
-    _assertToken(TokenType.GT_GT, ">>");
-  }
-
-  void test_gt_gt_eq() {
-    _assertToken(TokenType.GT_GT_EQ, ">>=");
-  }
-
-  void test_hash() {
-    _assertToken(TokenType.HASH, "#");
-  }
-
-  void test_hexidecimal() {
-    _assertToken(TokenType.HEXADECIMAL, "0x1A2B3C");
-  }
-
-  void test_hexidecimal_missingDigit() {
-    _assertError(ScannerErrorCode.MISSING_HEX_DIGIT, 1, "0x");
-  }
-
-  void test_identifier() {
-    _assertToken(TokenType.IDENTIFIER, "result");
-  }
-
-  void test_illegalChar_cyrillicLetter_middle() {
-    _assertError(ScannerErrorCode.ILLEGAL_CHARACTER, 5, "Shche\u0433lov");
-  }
-
-  void test_illegalChar_cyrillicLetter_start() {
-    _assertError(ScannerErrorCode.ILLEGAL_CHARACTER, 0, "\u0429");
-  }
-
-  void test_illegalChar_nbsp() {
-    _assertError(ScannerErrorCode.ILLEGAL_CHARACTER, 0, "\u00A0");
-  }
-
-  void test_illegalChar_notLetter() {
-    _assertError(ScannerErrorCode.ILLEGAL_CHARACTER, 0, "\u0312");
-  }
-
-  void test_index() {
-    _assertToken(TokenType.INDEX, "[]");
-  }
-
-  void test_index_eq() {
-    _assertToken(TokenType.INDEX_EQ, "[]=");
-  }
-
-  void test_int() {
-    _assertToken(TokenType.INT, "123");
-  }
-
-  void test_int_initialZero() {
-    _assertToken(TokenType.INT, "0123");
-  }
-
-  void test_keyword_abstract() {
-    _assertKeywordToken("abstract");
-  }
-
-  void test_keyword_as() {
-    _assertKeywordToken("as");
-  }
-
-  void test_keyword_assert() {
-    _assertKeywordToken("assert");
-  }
-
-  void test_keyword_break() {
-    _assertKeywordToken("break");
-  }
-
-  void test_keyword_case() {
-    _assertKeywordToken("case");
-  }
-
-  void test_keyword_catch() {
-    _assertKeywordToken("catch");
-  }
-
-  void test_keyword_class() {
-    _assertKeywordToken("class");
-  }
-
-  void test_keyword_const() {
-    _assertKeywordToken("const");
-  }
-
-  void test_keyword_continue() {
-    _assertKeywordToken("continue");
-  }
-
-  void test_keyword_default() {
-    _assertKeywordToken("default");
-  }
-
-  void test_keyword_deferred() {
-    _assertKeywordToken("deferred");
-  }
-
-  void test_keyword_do() {
-    _assertKeywordToken("do");
-  }
-
-  void test_keyword_dynamic() {
-    _assertKeywordToken("dynamic");
-  }
-
-  void test_keyword_else() {
-    _assertKeywordToken("else");
-  }
-
-  void test_keyword_enum() {
-    _assertKeywordToken("enum");
-  }
-
-  void test_keyword_export() {
-    _assertKeywordToken("export");
-  }
-
-  void test_keyword_extends() {
-    _assertKeywordToken("extends");
-  }
-
-  void test_keyword_factory() {
-    _assertKeywordToken("factory");
-  }
-
-  void test_keyword_false() {
-    _assertKeywordToken("false");
-  }
-
-  void test_keyword_final() {
-    _assertKeywordToken("final");
-  }
-
-  void test_keyword_finally() {
-    _assertKeywordToken("finally");
-  }
-
-  void test_keyword_for() {
-    _assertKeywordToken("for");
-  }
-
-  void test_keyword_get() {
-    _assertKeywordToken("get");
-  }
-
-  void test_keyword_if() {
-    _assertKeywordToken("if");
-  }
-
-  void test_keyword_implements() {
-    _assertKeywordToken("implements");
-  }
-
-  void test_keyword_import() {
-    _assertKeywordToken("import");
-  }
-
-  void test_keyword_in() {
-    _assertKeywordToken("in");
-  }
-
-  void test_keyword_is() {
-    _assertKeywordToken("is");
-  }
-
-  void test_keyword_library() {
-    _assertKeywordToken("library");
-  }
-
-  void test_keyword_new() {
-    _assertKeywordToken("new");
-  }
-
-  void test_keyword_null() {
-    _assertKeywordToken("null");
-  }
-
-  void test_keyword_operator() {
-    _assertKeywordToken("operator");
-  }
-
-  void test_keyword_part() {
-    _assertKeywordToken("part");
-  }
-
-  void test_keyword_rethrow() {
-    _assertKeywordToken("rethrow");
-  }
-
-  void test_keyword_return() {
-    _assertKeywordToken("return");
-  }
-
-  void test_keyword_set() {
-    _assertKeywordToken("set");
-  }
-
-  void test_keyword_static() {
-    _assertKeywordToken("static");
-  }
-
-  void test_keyword_super() {
-    _assertKeywordToken("super");
-  }
-
-  void test_keyword_switch() {
-    _assertKeywordToken("switch");
-  }
-
-  void test_keyword_this() {
-    _assertKeywordToken("this");
-  }
-
-  void test_keyword_throw() {
-    _assertKeywordToken("throw");
-  }
-
-  void test_keyword_true() {
-    _assertKeywordToken("true");
-  }
-
-  void test_keyword_try() {
-    _assertKeywordToken("try");
-  }
-
-  void test_keyword_typedef() {
-    _assertKeywordToken("typedef");
-  }
-
-  void test_keyword_var() {
-    _assertKeywordToken("var");
-  }
-
-  void test_keyword_void() {
-    _assertKeywordToken("void");
-  }
-
-  void test_keyword_while() {
-    _assertKeywordToken("while");
-  }
-
-  void test_keyword_with() {
-    _assertKeywordToken("with");
-  }
-
+class LineInfoTest extends EngineTestCase {
   void test_lineInfo_multilineComment() {
     String source = "/*\r *\r */";
     _assertLineInfo(source, [
       new ScannerTest_ExpectedLocation(0, 1, 1),
       new ScannerTest_ExpectedLocation(4, 2, 2),
       new ScannerTest_ExpectedLocation(source.length - 1, 3, 3)
     ]);
   }
 
   void test_lineInfo_multilineString() {
@@ skipping 25 matching lines @@
   }
 
   void test_lineInfo_slashN() {
     String source = "class Test {\n}";
     _assertLineInfo(source, [
       new ScannerTest_ExpectedLocation(0, 1, 1),
       new ScannerTest_ExpectedLocation(source.indexOf("}"), 2, 1)
     ]);
   }
 
-  void test_lt() {
-    _assertToken(TokenType.LT, "<");
-  }
-
-  void test_lt_eq() {
-    _assertToken(TokenType.LT_EQ, "<=");
-  }
-
-  void test_lt_lt() {
-    _assertToken(TokenType.LT_LT, "<<");
-  }
-
-  void test_lt_lt_eq() {
-    _assertToken(TokenType.LT_LT_EQ, "<<=");
-  }
-
-  void test_minus() {
-    _assertToken(TokenType.MINUS, "-");
-  }
-
-  void test_minus_eq() {
-    _assertToken(TokenType.MINUS_EQ, "-=");
-  }
-
-  void test_minus_minus() {
-    _assertToken(TokenType.MINUS_MINUS, "--");
-  }
-
-  void test_open_curly_bracket() {
-    _assertToken(TokenType.OPEN_CURLY_BRACKET, "{");
-  }
-
-  void test_open_paren() {
-    _assertToken(TokenType.OPEN_PAREN, "(");
-  }
-
-  void test_open_square_bracket() {
-    _assertToken(TokenType.OPEN_SQUARE_BRACKET, "[");
-  }
-
-  void test_openSquareBracket() {
-    _assertToken(TokenType.OPEN_SQUARE_BRACKET, "[");
-  }
-
-  void test_percent() {
-    _assertToken(TokenType.PERCENT, "%");
-  }
-
-  void test_percent_eq() {
-    _assertToken(TokenType.PERCENT_EQ, "%=");
-  }
-
-  void test_period() {
-    _assertToken(TokenType.PERIOD, ".");
-  }
-
-  void test_period_period() {
-    _assertToken(TokenType.PERIOD_PERIOD, "..");
-  }
-
-  void test_period_period_period() {
-    _assertToken(TokenType.PERIOD_PERIOD_PERIOD, "...");
-  }
-
-  void test_periodAfterNumberNotIncluded_identifier() {
-    _assertTokens("42.isEven()", [
-      new StringToken(TokenType.INT, "42", 0),
-      new Token(TokenType.PERIOD, 2),
-      new StringToken(TokenType.IDENTIFIER, "isEven", 3),
-      new Token(TokenType.OPEN_PAREN, 9),
-      new Token(TokenType.CLOSE_PAREN, 10)
-    ]);
-  }
-
-  void test_periodAfterNumberNotIncluded_period() {
-    _assertTokens("42..isEven()", [
-      new StringToken(TokenType.INT, "42", 0),
-      new Token(TokenType.PERIOD_PERIOD, 2),
-      new StringToken(TokenType.IDENTIFIER, "isEven", 4),
-      new Token(TokenType.OPEN_PAREN, 10),
-      new Token(TokenType.CLOSE_PAREN, 11)
-    ]);
-  }
-
-  void test_plus() {
-    _assertToken(TokenType.PLUS, "+");
-  }
-
-  void test_plus_eq() {
-    _assertToken(TokenType.PLUS_EQ, "+=");
-  }
-
-  void test_plus_plus() {
-    _assertToken(TokenType.PLUS_PLUS, "++");
-  }
-
-  void test_question() {
-    _assertToken(TokenType.QUESTION, "?");
-  }
-
-  void test_question_dot() {
-    _assertToken(TokenType.QUESTION_PERIOD, "?.");
-  }
-
-  void test_question_question() {
-    _assertToken(TokenType.QUESTION_QUESTION, "??");
-  }
-
-  void test_question_question_eq() {
-    _assertToken(TokenType.QUESTION_QUESTION_EQ, "??=");
-  }
-
-  void test_scriptTag_withArgs() {
-    _assertToken(TokenType.SCRIPT_TAG, "#!/bin/dart -debug");
-  }
-
-  void test_scriptTag_withoutSpace() {
-    _assertToken(TokenType.SCRIPT_TAG, "#!/bin/dart");
-  }
-
-  void test_scriptTag_withSpace() {
-    _assertToken(TokenType.SCRIPT_TAG, "#! /bin/dart");
-  }
-
-  void test_semicolon() {
-    _assertToken(TokenType.SEMICOLON, ";");
-  }
-
-  void test_setSourceStart() {
-    int offsetDelta = 42;
-    GatheringErrorListener listener = new GatheringErrorListener();
-    Scanner scanner =
-        new Scanner(null, new SubSequenceReader("a", offsetDelta), listener);
-    scanner.setSourceStart(3, 9);
-    scanner.tokenize();
-    List<int> lineStarts = scanner.lineStarts;
-    expect(lineStarts, isNotNull);
-    expect(lineStarts.length, 3);
-    expect(lineStarts[2], 33);
-  }
-
-  void test_slash() {
-    _assertToken(TokenType.SLASH, "/");
-  }
-
-  void test_slash_eq() {
-    _assertToken(TokenType.SLASH_EQ, "/=");
-  }
-
-  void test_star() {
-    _assertToken(TokenType.STAR, "*");
-  }
-
-  void test_star_eq() {
-    _assertToken(TokenType.STAR_EQ, "*=");
-  }
-
-  void test_startAndEnd() {
-    Token token = _scan("a");
-    Token previous = token.previous;
-    expect(previous.next, token);
-    expect(previous.previous, previous);
-    Token next = token.next;
-    expect(next.next, next);
-    expect(next.previous, token);
-  }
-
-  void test_string_multi_double() {
-    _assertToken(TokenType.STRING, "\"\"\"line1\nline2\"\"\"");
-  }
-
-  void test_string_multi_embeddedQuotes() {
-    _assertToken(TokenType.STRING, "\"\"\"line1\n\"\"\nline2\"\"\"");
-  }
-
-  void test_string_multi_embeddedQuotes_escapedChar() {
-    _assertToken(TokenType.STRING, "\"\"\"a\"\"\\tb\"\"\"");
-  }
-
-  void test_string_multi_interpolation_block() {
-    _assertTokens("\"Hello \${name}!\"", [
-      new StringToken(TokenType.STRING, "\"Hello ", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_EXPRESSION, "\${", 7),
-      new StringToken(TokenType.IDENTIFIER, "name", 9),
-      new Token(TokenType.CLOSE_CURLY_BRACKET, 13),
-      new StringToken(TokenType.STRING, "!\"", 14)
-    ]);
-  }
-
-  void test_string_multi_interpolation_identifier() {
-    _assertTokens("\"Hello \$name!\"", [
-      new StringToken(TokenType.STRING, "\"Hello ", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_IDENTIFIER, "\$", 7),
-      new StringToken(TokenType.IDENTIFIER, "name", 8),
-      new StringToken(TokenType.STRING, "!\"", 12)
-    ]);
-  }
-
-  void test_string_multi_single() {
-    _assertToken(TokenType.STRING, "'''string'''");
-  }
-
-  void test_string_multi_slashEnter() {
-    _assertToken(TokenType.STRING, "'''\\\n'''");
-  }
-
-  void test_string_multi_unterminated() {
-    _assertErrorAndTokens(ScannerErrorCode.UNTERMINATED_STRING_LITERAL, 8,
-        "'''string", [new StringToken(TokenType.STRING, "'''string", 0)]);
-  }
-
-  void test_string_multi_unterminated_interpolation_block() {
-    _assertErrorAndTokens(
-        ScannerErrorCode.UNTERMINATED_STRING_LITERAL, 8, "'''\${name", [
-      new StringToken(TokenType.STRING, "'''", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_EXPRESSION, "\${", 3),
-      new StringToken(TokenType.IDENTIFIER, "name", 5),
-      new StringToken(TokenType.STRING, "", 9)
-    ]);
-  }
-
-  void test_string_multi_unterminated_interpolation_identifier() {
-    _assertErrorAndTokens(
-        ScannerErrorCode.UNTERMINATED_STRING_LITERAL, 7, "'''\$name", [
-      new StringToken(TokenType.STRING, "'''", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_IDENTIFIER, "\$", 3),
-      new StringToken(TokenType.IDENTIFIER, "name", 4),
-      new StringToken(TokenType.STRING, "", 8)
-    ]);
-  }
-
-  void test_string_raw_multi_double() {
-    _assertToken(TokenType.STRING, "r\"\"\"line1\nline2\"\"\"");
-  }
-
-  void test_string_raw_multi_single() {
-    _assertToken(TokenType.STRING, "r'''string'''");
-  }
-
-  void test_string_raw_multi_unterminated() {
-    String source = "r'''string";
-    _assertErrorAndTokens(ScannerErrorCode.UNTERMINATED_STRING_LITERAL, 9,
-        source, [new StringToken(TokenType.STRING, source, 0)]);
-  }
-
-  void test_string_raw_simple_double() {
-    _assertToken(TokenType.STRING, "r\"string\"");
-  }
-
-  void test_string_raw_simple_single() {
-    _assertToken(TokenType.STRING, "r'string'");
-  }
-
-  void test_string_raw_simple_unterminated_eof() {
-    String source = "r'string";
-    _assertErrorAndTokens(ScannerErrorCode.UNTERMINATED_STRING_LITERAL, 7,
-        source, [new StringToken(TokenType.STRING, source, 0)]);
-  }
-
-  void test_string_raw_simple_unterminated_eol() {
-    String source = "r'string";
-    _assertErrorAndTokens(ScannerErrorCode.UNTERMINATED_STRING_LITERAL, 8,
-        "$source\n", [new StringToken(TokenType.STRING, source, 0)]);
-  }
-
-  void test_string_simple_double() {
-    _assertToken(TokenType.STRING, "\"string\"");
-  }
-
-  void test_string_simple_escapedDollar() {
-    _assertToken(TokenType.STRING, "'a\\\$b'");
-  }
-
-  void test_string_simple_interpolation_adjacentIdentifiers() {
-    _assertTokens("'\$a\$b'", [
-      new StringToken(TokenType.STRING, "'", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_IDENTIFIER, "\$", 1),
-      new StringToken(TokenType.IDENTIFIER, "a", 2),
-      new StringToken(TokenType.STRING, "", 3),
-      new StringToken(TokenType.STRING_INTERPOLATION_IDENTIFIER, "\$", 3),
-      new StringToken(TokenType.IDENTIFIER, "b", 4),
-      new StringToken(TokenType.STRING, "'", 5)
-    ]);
-  }
-
-  void test_string_simple_interpolation_block() {
-    _assertTokens("'Hello \${name}!'", [
-      new StringToken(TokenType.STRING, "'Hello ", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_EXPRESSION, "\${", 7),
-      new StringToken(TokenType.IDENTIFIER, "name", 9),
-      new Token(TokenType.CLOSE_CURLY_BRACKET, 13),
-      new StringToken(TokenType.STRING, "!'", 14)
-    ]);
-  }
-
-  void test_string_simple_interpolation_blockWithNestedMap() {
-    _assertTokens("'a \${f({'b' : 'c'})} d'", [
-      new StringToken(TokenType.STRING, "'a ", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_EXPRESSION, "\${", 3),
-      new StringToken(TokenType.IDENTIFIER, "f", 5),
-      new Token(TokenType.OPEN_PAREN, 6),
-      new Token(TokenType.OPEN_CURLY_BRACKET, 7),
-      new StringToken(TokenType.STRING, "'b'", 8),
-      new Token(TokenType.COLON, 12),
-      new StringToken(TokenType.STRING, "'c'", 14),
-      new Token(TokenType.CLOSE_CURLY_BRACKET, 17),
-      new Token(TokenType.CLOSE_PAREN, 18),
-      new Token(TokenType.CLOSE_CURLY_BRACKET, 19),
-      new StringToken(TokenType.STRING, " d'", 20)
-    ]);
-  }
-
-  void test_string_simple_interpolation_firstAndLast() {
-    _assertTokens("'\$greeting \$name'", [
-      new StringToken(TokenType.STRING, "'", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_IDENTIFIER, "\$", 1),
-      new StringToken(TokenType.IDENTIFIER, "greeting", 2),
-      new StringToken(TokenType.STRING, " ", 10),
-      new StringToken(TokenType.STRING_INTERPOLATION_IDENTIFIER, "\$", 11),
-      new StringToken(TokenType.IDENTIFIER, "name", 12),
-      new StringToken(TokenType.STRING, "'", 16)
-    ]);
-  }
-
-  void test_string_simple_interpolation_identifier() {
-    _assertTokens("'Hello \$name!'", [
-      new StringToken(TokenType.STRING, "'Hello ", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_IDENTIFIER, "\$", 7),
-      new StringToken(TokenType.IDENTIFIER, "name", 8),
-      new StringToken(TokenType.STRING, "!'", 12)
-    ]);
-  }
-
-  void test_string_simple_interpolation_missingIdentifier() {
-    _assertTokens("'\$x\$'", [
-      new StringToken(TokenType.STRING, "'", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_IDENTIFIER, "\$", 1),
-      new StringToken(TokenType.IDENTIFIER, "x", 2),
-      new StringToken(TokenType.STRING, "", 3),
-      new StringToken(TokenType.STRING_INTERPOLATION_IDENTIFIER, "\$", 3),
-      new StringToken(TokenType.STRING, "'", 4)
-    ]);
-  }
-
-  void test_string_simple_interpolation_nonIdentifier() {
-    _assertTokens("'\$1'", [
-      new StringToken(TokenType.STRING, "'", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_IDENTIFIER, "\$", 1),
-      new StringToken(TokenType.STRING, "1'", 2)
-    ]);
-  }
-
-  void test_string_simple_single() {
-    _assertToken(TokenType.STRING, "'string'");
-  }
-
-  void test_string_simple_unterminated_eof() {
-    String source = "'string";
-    _assertErrorAndTokens(ScannerErrorCode.UNTERMINATED_STRING_LITERAL, 6,
-        source, [new StringToken(TokenType.STRING, source, 0)]);
-  }
-
-  void test_string_simple_unterminated_eol() {
-    String source = "'string";
-    _assertErrorAndTokens(ScannerErrorCode.UNTERMINATED_STRING_LITERAL, 7,
-        "$source\r", [new StringToken(TokenType.STRING, source, 0)]);
-  }
-
-  void test_string_simple_unterminated_interpolation_block() {
-    _assertErrorAndTokens(
-        ScannerErrorCode.UNTERMINATED_STRING_LITERAL, 6, "'\${name", [
-      new StringToken(TokenType.STRING, "'", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_EXPRESSION, "\${", 1),
-      new StringToken(TokenType.IDENTIFIER, "name", 3),
-      new StringToken(TokenType.STRING, "", 7)
-    ]);
-  }
-
-  void test_string_simple_unterminated_interpolation_identifier() {
-    _assertErrorAndTokens(
-        ScannerErrorCode.UNTERMINATED_STRING_LITERAL, 5, "'\$name", [
-      new StringToken(TokenType.STRING, "'", 0),
-      new StringToken(TokenType.STRING_INTERPOLATION_IDENTIFIER, "\$", 1),
-      new StringToken(TokenType.IDENTIFIER, "name", 2),
-      new StringToken(TokenType.STRING, "", 6)
-    ]);
-  }
-
-  void test_tilde() {
-    _assertToken(TokenType.TILDE, "~");
-  }
-
-  void test_tilde_slash() {
-    _assertToken(TokenType.TILDE_SLASH, "~/");
-  }
-
-  void test_tilde_slash_eq() {
-    _assertToken(TokenType.TILDE_SLASH_EQ, "~/=");
-  }
-
-  void test_unclosedPairInInterpolation() {
-    GatheringErrorListener listener = new GatheringErrorListener();
-    _scanWithListener("'\${(}'", listener);
-  }
-
-  void _assertComment(TokenType commentType, String source,
-      {bool genericMethodComments: false}) {
-    //
-    // Test without a trailing end-of-line marker
-    //
-    Token token = _scan(source, genericMethodComments: genericMethodComments);
-    expect(token, isNotNull);
-    expect(token.type, TokenType.EOF);
-    Token comment = token.precedingComments;
-    expect(comment, isNotNull);
-    expect(comment.type, commentType);
-    expect(comment.offset, 0);
-    expect(comment.length, source.length);
-    expect(comment.lexeme, source);
-    //
-    // Test with a trailing end-of-line marker
-    //
-    token = _scan("$source\n", genericMethodComments: genericMethodComments);
-    expect(token, isNotNull);
-    expect(token.type, TokenType.EOF);
-    comment = token.precedingComments;
-    expect(comment, isNotNull);
-    expect(comment.type, commentType);
-    expect(comment.offset, 0);
-    expect(comment.length, source.length);
-    expect(comment.lexeme, source);
-  }
-
-  /**
-   * Assert that scanning the given [source] produces an error with the given
-   * code.
-   *
-   * [expectedError] the error that should be produced
-   * [expectedOffset] the string offset that should be associated with the error
-   * [source] the source to be scanned to produce the error
-   */
-  void _assertError(
-      ScannerErrorCode expectedError, int expectedOffset, String source) {
-    GatheringErrorListener listener = new GatheringErrorListener();
-    _scanWithListener(source, listener);
-    listener.assertErrors([
-      new AnalysisError(null, expectedOffset, 1, expectedError,
-          [source.codeUnitAt(expectedOffset)])
-    ]);
-  }
-
-  /**
-   * Assert that scanning the given [source] produces an error with the given
-   * code, and also produces the given tokens.
-   *
-   * [expectedError] the error that should be produced
-   * [expectedOffset] the string offset that should be associated with the error
-   * [source] the source to be scanned to produce the error
-   * [expectedTokens] the tokens that are expected to be in the source
-   */
-  void _assertErrorAndTokens(ScannerErrorCode expectedError, int expectedOffset,
-      String source, List<Token> expectedTokens) {
-    GatheringErrorListener listener = new GatheringErrorListener();
-    Token token = _scanWithListener(source, listener);
-    listener.assertErrors([
-      new AnalysisError(null, expectedOffset, 1, expectedError,
-          [source.codeUnitAt(expectedOffset)])
-    ]);
-    _checkTokens(token, expectedTokens);
-  }
-
-  /**
-   * Assert that when scanned the given [source] contains a single keyword token
-   * with the same lexeme as the original source.
-   */
-  void _assertKeywordToken(String source) {
-    Token token = _scan(source);
-    expect(token, isNotNull);
-    expect(token.type, TokenType.KEYWORD);
-    expect(token.offset, 0);
-    expect(token.length, source.length);
-    expect(token.lexeme, source);
-    Object value = token.value();
-    expect(value is Keyword, isTrue);
-    expect((value as Keyword).syntax, source);
-    token = _scan(" $source ");
-    expect(token, isNotNull);
-    expect(token.type, TokenType.KEYWORD);
-    expect(token.offset, 1);
-    expect(token.length, source.length);
-    expect(token.lexeme, source);
-    value = token.value();
-    expect(value is Keyword, isTrue);
-    expect((value as Keyword).syntax, source);
-    expect(token.next.type, TokenType.EOF);
-  }
-
   void _assertLineInfo(
       String source, List<ScannerTest_ExpectedLocation> expectedLocations) {
     GatheringErrorListener listener = new GatheringErrorListener();
     _scanWithListener(source, listener);
     listener.assertNoErrors();
     LineInfo info = listener.getLineInfo(new TestSource());
     expect(info, isNotNull);
     int count = expectedLocations.length;
     for (int i = 0; i < count; i++) {
       ScannerTest_ExpectedLocation expectedLocation = expectedLocations[i];
       LineInfo_Location location = info.getLocation(expectedLocation._offset);
       expect(location.lineNumber, expectedLocation._lineNumber,
           reason: 'Line number in location $i');
       expect(location.columnNumber, expectedLocation._columnNumber,
           reason: 'Column number in location $i');
     }
   }
 
-  /**
-   * Assert that the token scanned from the given [source] has the
-   * [expectedType].
-   */
-  Token _assertToken(TokenType expectedType, String source,
-      {bool lazyAssignmentOperators: false}) {
-    Token originalToken =
-        _scan(source, lazyAssignmentOperators: lazyAssignmentOperators);
-    expect(originalToken, isNotNull);
-    expect(originalToken.type, expectedType);
-    expect(originalToken.offset, 0);
-    expect(originalToken.length, source.length);
-    expect(originalToken.lexeme, source);
-    if (expectedType == TokenType.SCRIPT_TAG) {
-      // Adding space before the script tag is not allowed, and adding text at
-      // the end changes nothing.
-      return originalToken;
-    } else if (expectedType == TokenType.SINGLE_LINE_COMMENT) {
-      // Adding space to an end-of-line comment changes the comment.
-      Token tokenWithSpaces =
-          _scan(" $source", lazyAssignmentOperators: lazyAssignmentOperators);
-      expect(tokenWithSpaces, isNotNull);
-      expect(tokenWithSpaces.type, expectedType);
-      expect(tokenWithSpaces.offset, 1);
-      expect(tokenWithSpaces.length, source.length);
-      expect(tokenWithSpaces.lexeme, source);
-      return originalToken;
-    } else if (expectedType == TokenType.INT ||
-        expectedType == TokenType.DOUBLE) {
-      Token tokenWithLowerD =
-          _scan("${source}d", lazyAssignmentOperators: lazyAssignmentOperators);
-      expect(tokenWithLowerD, isNotNull);
-      expect(tokenWithLowerD.type, expectedType);
-      expect(tokenWithLowerD.offset, 0);
-      expect(tokenWithLowerD.length, source.length);
-      expect(tokenWithLowerD.lexeme, source);
-      Token tokenWithUpperD =
-          _scan("${source}D", lazyAssignmentOperators: lazyAssignmentOperators);
-      expect(tokenWithUpperD, isNotNull);
-      expect(tokenWithUpperD.type, expectedType);
-      expect(tokenWithUpperD.offset, 0);
-      expect(tokenWithUpperD.length, source.length);
-      expect(tokenWithUpperD.lexeme, source);
-    }
-    Token tokenWithSpaces =
-        _scan(" $source ", lazyAssignmentOperators: lazyAssignmentOperators);
-    expect(tokenWithSpaces, isNotNull);
-    expect(tokenWithSpaces.type, expectedType);
-    expect(tokenWithSpaces.offset, 1);
-    expect(tokenWithSpaces.length, source.length);
-    expect(tokenWithSpaces.lexeme, source);
-    expect(originalToken.next.type, TokenType.EOF);
-    return originalToken;
-  }
-
-  /**
-   * Assert that when scanned the given [source] contains a sequence of tokens
-   * identical to the given list of [expectedTokens].
-   */
-  void _assertTokens(String source, List<Token> expectedTokens) {
-    Token token = _scan(source);
-    _checkTokens(token, expectedTokens);
-  }
-
-  void _checkTokens(Token firstToken, List<Token> expectedTokens) {
-    expect(firstToken, isNotNull);
-    Token token = firstToken;
-    for (int i = 0; i < expectedTokens.length; i++) {
-      Token expectedToken = expectedTokens[i];
-      expect(token.type, expectedToken.type, reason: "Wrong type for token $i");
-      expect(token.offset, expectedToken.offset,
-          reason: "Wrong offset for token $i");
-      expect(token.length, expectedToken.length,
-          reason: "Wrong length for token $i");
-      expect(token.lexeme, expectedToken.lexeme,
-          reason: "Wrong lexeme for token $i");
-      token = token.next;
-      expect(token, isNotNull);
-    }
-    expect(token.type, TokenType.EOF);
-  }
-
-  Token _scan(String source,
-      {bool genericMethodComments: false,
-      bool lazyAssignmentOperators: false}) {
-    GatheringErrorListener listener = new GatheringErrorListener();
-    Token token = _scanWithListener(source, listener,
-        genericMethodComments: genericMethodComments,
-        lazyAssignmentOperators: lazyAssignmentOperators);
-    listener.assertNoErrors();
-    return token;
-  }
-
   Token _scanWithListener(String source, GatheringErrorListener listener,
       {bool genericMethodComments: false,
       bool lazyAssignmentOperators: false}) {
     Scanner scanner =
         new Scanner(null, new CharSequenceReader(source), listener);
     scanner.scanGenericMethodComments = genericMethodComments;
     scanner.scanLazyAssignmentOperators = lazyAssignmentOperators;
     Token result = scanner.tokenize();
     listener.setLineInfo(new TestSource(), scanner.lineStarts);
     return result;
@@ skipping 73 matching lines @@
     buffer.write(token.type);
     buffer.write(", '");
     buffer.write(token.lexeme);
     buffer.write("', ");
     buffer.write(token.offset);
     buffer.write(", ");
     buffer.write(token.length);
     buffer.write("]");
   }
 }
-
-@reflectiveTest
-class TokenTypeTest extends EngineTestCase {
-  void test_isOperator() {
-    expect(TokenType.AMPERSAND.isOperator, isTrue);
-    expect(TokenType.AMPERSAND_AMPERSAND.isOperator, isTrue);
-    expect(TokenType.AMPERSAND_EQ.isOperator, isTrue);
-    expect(TokenType.BANG.isOperator, isTrue);
-    expect(TokenType.BANG_EQ.isOperator, isTrue);
-    expect(TokenType.BAR.isOperator, isTrue);
-    expect(TokenType.BAR_BAR.isOperator, isTrue);
-    expect(TokenType.BAR_EQ.isOperator, isTrue);
-    expect(TokenType.CARET.isOperator, isTrue);
-    expect(TokenType.CARET_EQ.isOperator, isTrue);
-    expect(TokenType.EQ.isOperator, isTrue);
-    expect(TokenType.EQ_EQ.isOperator, isTrue);
-    expect(TokenType.GT.isOperator, isTrue);
-    expect(TokenType.GT_EQ.isOperator, isTrue);
-    expect(TokenType.GT_GT.isOperator, isTrue);
-    expect(TokenType.GT_GT_EQ.isOperator, isTrue);
-    expect(TokenType.INDEX.isOperator, isTrue);
-    expect(TokenType.INDEX_EQ.isOperator, isTrue);
-    expect(TokenType.IS.isOperator, isTrue);
-    expect(TokenType.LT.isOperator, isTrue);
-    expect(TokenType.LT_EQ.isOperator, isTrue);
-    expect(TokenType.LT_LT.isOperator, isTrue);
-    expect(TokenType.LT_LT_EQ.isOperator, isTrue);
-    expect(TokenType.MINUS.isOperator, isTrue);
-    expect(TokenType.MINUS_EQ.isOperator, isTrue);
-    expect(TokenType.MINUS_MINUS.isOperator, isTrue);
-    expect(TokenType.PERCENT.isOperator, isTrue);
-    expect(TokenType.PERCENT_EQ.isOperator, isTrue);
-    expect(TokenType.PERIOD_PERIOD.isOperator, isTrue);
-    expect(TokenType.PLUS.isOperator, isTrue);
-    expect(TokenType.PLUS_EQ.isOperator, isTrue);
-    expect(TokenType.PLUS_PLUS.isOperator, isTrue);
-    expect(TokenType.QUESTION.isOperator, isTrue);
-    expect(TokenType.SLASH.isOperator, isTrue);
-    expect(TokenType.SLASH_EQ.isOperator, isTrue);
-    expect(TokenType.STAR.isOperator, isTrue);
-    expect(TokenType.STAR_EQ.isOperator, isTrue);
-    expect(TokenType.TILDE.isOperator, isTrue);
-    expect(TokenType.TILDE_SLASH.isOperator, isTrue);
-    expect(TokenType.TILDE_SLASH_EQ.isOperator, isTrue);
-  }
-
-  void test_isUserDefinableOperator() {
-    expect(TokenType.AMPERSAND.isUserDefinableOperator, isTrue);
-    expect(TokenType.BAR.isUserDefinableOperator, isTrue);
-    expect(TokenType.CARET.isUserDefinableOperator, isTrue);
-    expect(TokenType.EQ_EQ.isUserDefinableOperator, isTrue);
-    expect(TokenType.GT.isUserDefinableOperator, isTrue);
-    expect(TokenType.GT_EQ.isUserDefinableOperator, isTrue);
-    expect(TokenType.GT_GT.isUserDefinableOperator, isTrue);
-    expect(TokenType.INDEX.isUserDefinableOperator, isTrue);
-    expect(TokenType.INDEX_EQ.isUserDefinableOperator, isTrue);
-    expect(TokenType.LT.isUserDefinableOperator, isTrue);
-    expect(TokenType.LT_EQ.isUserDefinableOperator, isTrue);
-    expect(TokenType.LT_LT.isUserDefinableOperator, isTrue);
-    expect(TokenType.MINUS.isUserDefinableOperator, isTrue);
-    expect(TokenType.PERCENT.isUserDefinableOperator, isTrue);
-    expect(TokenType.PLUS.isUserDefinableOperator, isTrue);
-    expect(TokenType.SLASH.isUserDefinableOperator, isTrue);
-    expect(TokenType.STAR.isUserDefinableOperator, isTrue);
-    expect(TokenType.TILDE.isUserDefinableOperator, isTrue);
-    expect(TokenType.TILDE_SLASH.isUserDefinableOperator, isTrue);
-  }
-}