Migrate test block 10 to Dart 2.0.

tests/corelib_strong/int_parse_radix_test.dart

-// Copyright (c) 2012, 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:expect/expect.dart";
-import "dart:math" show pow;
-
-void main() {
-  bool checkedMode = false;
-  assert((checkedMode = true));
-  const String oneByteWhiteSpace = "\x09\x0a\x0b\x0c\x0d\x20"
-    "\x85" //# 01: ok
-      "\xa0";
-  const String whiteSpace = "$oneByteWhiteSpace\u1680"
-      "\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a"
-      "\u2028\u2029\u202f\u205f\u3000\ufeff";
-
-  var digits = "0123456789abcdefghijklmnopqrstuvwxyz";
-  var zeros = "0" * 64;
-
-  for (int i = 0; i < whiteSpace.length; i++) {
-    var ws = whiteSpace[i];
-    Expect.equals(0, int.parse("${ws}0${ws}", radix: 2));
-  }
-
-  void testParse(int result, String radixString, int radix) {
-    var m = "$radixString/$radix->$result";
-    Expect.equals(
-        result, int.parse(radixString.toLowerCase(), radix: radix), m);
-    Expect.equals(
-        result, int.parse(radixString.toUpperCase(), radix: radix), m);
-    Expect.equals(result, int.parse(" $radixString", radix: radix), m);
-    Expect.equals(result, int.parse("$radixString ", radix: radix), m);
-    Expect.equals(result, int.parse(" $radixString ", radix: radix), m);
-    Expect.equals(result, int.parse("+$radixString", radix: radix), m);
-    Expect.equals(result, int.parse(" +$radixString", radix: radix), m);
-    Expect.equals(result, int.parse("+$radixString ", radix: radix), m);
-    Expect.equals(result, int.parse(" +$radixString ", radix: radix), m);
-    Expect.equals(-result, int.parse("-$radixString", radix: radix), m);
-    Expect.equals(-result, int.parse(" -$radixString", radix: radix), m);
-    Expect.equals(-result, int.parse("-$radixString ", radix: radix), m);
-    Expect.equals(-result, int.parse(" -$radixString ", radix: radix), m);
-    Expect.equals(
-        result,
-        int.parse("$oneByteWhiteSpace$radixString$oneByteWhiteSpace",
-            radix: radix),
-        m);
-    Expect.equals(
-        -result,
-        int.parse("$oneByteWhiteSpace-$radixString$oneByteWhiteSpace",
-            radix: radix),
-        m);
-    Expect.equals(result,
-        int.parse("$whiteSpace$radixString$whiteSpace", radix: radix), m);
-    Expect.equals(-result,
-        int.parse("$whiteSpace-$radixString$whiteSpace", radix: radix), m);
-
-    Expect.equals(result, int.parse("$zeros$radixString", radix: radix), m);
-    Expect.equals(result, int.parse("+$zeros$radixString", radix: radix), m);
-    Expect.equals(-result, int.parse("-$zeros$radixString", radix: radix), m);
-  }
-
-  for (int r = 2; r <= 36; r++) {
-    for (int i = 0; i <= r * r; i++) {
-      String radixString = i.toRadixString(r);
-      testParse(i, radixString, r);
-    }
-  }
-
-  for (int i = 2; i <= 36; i++) { //             //# 02: ok
-    // Test with bignums. //                     //# 02: continued
-    var digit = digits[i - 1]; //                //# 02: continued
-    testParse(pow(i, 64) - 1, digit * 64, i); // //# 02: continued
-    testParse(0, zeros, i); //                   //# 02: continued
-  } //                                           //# 02: continued
-
-  // Allow both upper- and lower-case letters.
-  Expect.equals(0xABCD, int.parse("ABCD", radix: 16));
-  Expect.equals(0xABCD, int.parse("abcd", radix: 16));
-  Expect.equals(15628859, int.parse("09azAZ", radix: 36));
-  // Big number.
-  Expect.equals(0x12345678123456781234567812345678, // //# 02: continued
-                int.parse("0x1234567812345678" //      //# 02: continued
-                          "1234567812345678")); //     //# 02: continued
-  // Allow whitespace before and after the number.
-  Expect.equals(1, int.parse(" 1", radix: 2));
-  Expect.equals(1, int.parse("1 ", radix: 2));
-  Expect.equals(1, int.parse(" 1 ", radix: 2));
-  Expect.equals(1, int.parse("\n1", radix: 2));
-  Expect.equals(1, int.parse("1\n", radix: 2));
-  Expect.equals(1, int.parse("\n1\n", radix: 2));
-  Expect.equals(1, int.parse("+1", radix: 2));
-
-  void testFails(String source, int radix) {
-    Expect.throws(() {
-      throw int.parse(source, radix: radix, onError: (s) {
-        throw "FAIL";
-      });
-    }, isFail, "$source/$radix");
-    Expect.equals(-999, int.parse(source, radix: radix, onError: (s) => -999));
-  }
-
-  for (int i = 2; i < 36; i++) {
-    var char = i.toRadixString(36);
-    testFails(char.toLowerCase(), i);
-    testFails(char.toUpperCase(), i);
-  }
-  testFails("", 2);
-  testFails("+ 1", 2); // No space between sign and digits.
-  testFails("- 1", 2); // No space between sign and digits.
-  testFails("0x", null);
-  for (int i = 2; i <= 33; i++) {
-    // No 0x specially allowed.
-    // At radix 34 and above, "x" is a valid digit.
-    testFails("0x10", i);
-  }
-
-  testBadTypes(var source, var radix) {
-    if (!checkedMode) {
-      // No promises on what error is thrown if the type doesn't match.
-      // Likely either ArgumentError or NoSuchMethodError.
-      Expect.throws(() => int.parse(source, radix: radix, onError: (s) => 0));
-      return;
-    }
-    // In checked mode, it's always a TypeError.
-    Expect.throws(() => int.parse(source, radix: radix, onError: (s) => 0),
-        (e) => e is TypeError || e is CastError);
-  }
-
-  testBadTypes(9, 10);
-  testBadTypes(true, 10);
-  testBadTypes("0", true);
-  testBadTypes("0", "10");
-
-  testBadArguments(String source, int radix) {
-    // If the types match, it should be an ArgumentError of some sort.
-    Expect.throws(() => int.parse(source, radix: radix, onError: (s) => 0),
-        (e) => e is ArgumentError);
-  }
-
-  testBadArguments("0", -1);
-  testBadArguments("0", 0);
-  testBadArguments("0", 1);
-  testBadArguments("0", 37);
-
-  // See also int_parse_radix_bad_handler_test.dart
-}
-
-bool isFail(e) => e == "FAIL";