test rename overhaul: step 8 - language tests

tests/language/src/BitOperationsTest.dart

-// Copyright (c) 2011, 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.
-// Dart test for testing bitwise operations.
-
-class BitOperationsTest {
-  static testMain() {
-    for (int i = 0; i < 4; i++) {
-      testOne();
-    }
-  }
-  static testOne() {
-    Expect.equals(3, (3 & 7));
-    Expect.equals(7, (3 | 7));
-    Expect.equals(4, (3 ^ 7));
-    Expect.equals(25, (100 >> 2));
-    Expect.equals(400, (100 << 2));
-    Expect.equals(-25, (-100 >> 2));
-    Expect.equals(-101, ~100);
-    Expect.equals(0x10000000000000000, 1 << 64);
-    Expect.equals(-0x10000000000000000, -1 << 64);
-    Expect.equals(0x40000000, 0x04000000 << 4);
-    Expect.equals(0x4000000000000000, 0x0400000000000000 << 4);
-    Expect.equals(0, ~-1);
-    Expect.equals(-1, ~0);
-
-    Expect.equals(0, 1 >> 160);
-    Expect.equals(-1, -1 >> 160);
-
-    Expect.equals(0x100000000000000001,
-        0x100000000000000001 & 0x100000100F00000001);
-    Expect.equals(0x1, 0x1 & 0x100000100F00000001);
-    Expect.equals(0x1, 0x100000100F00000001 & 0x1);
-
-    Expect.equals(0x100000100F00000001,
-        0x100000000000000001 | 0x100000100F00000001);
-    Expect.equals(0x100000100F00000011, 0x11 | 0x100000100F00000001);
-    Expect.equals(0x100000100F00000011, 0x100000100F00000001 | 0x11);
-
-    Expect.equals(0x0F000F00000000000000,
-        0x0F00F00000000000001 ^ 0xFF00000000000000001);
-    Expect.equals(0x31, 0xF00F00000000000001 ^ 0xF00F00000000000030);
-    Expect.equals(0xF00F00000000000031, 0xF00F00000000000001 ^ 0x30);
-    Expect.equals(0xF00F00000000000031, 0x30 ^ 0xF00F00000000000001);
-
-    Expect.equals(0xF0000000000000000F, 0xF0000000000000000F7 >> 4);
-    Expect.equals(15, 0xF00000000 >> 32);
-    Expect.equals(1030792151040, 16492674416655 >> 4);
-
-    Expect.equals(0xF0000000000000000F0, 0xF0000000000000000F << 4);
-    Expect.equals(0xF00000000, 15 << 32);
-
-    TestNegativeValueShifts();
-    TestPositiveValueShifts();
-    TestNoMaskingOfShiftCount();
-  }
-
-  static void TestNegativeValueShifts() {
-    for (int value = 0; value > -100; value--) {
-      for (int i = 0; i < 300; i++) {
-        int b = (value << i) >> i;
-        Expect.equals(value, b);
-      }
-    }
-  }
-
-  static void TestPositiveValueShifts() {
-    for (int value = 0; value < 100; value++) {
-      for (int i = 0; i < 300; i++) {
-        int b = (value << i) >> i;
-        Expect.equals(value, b);
-      }
-    }
-  }
-
-  static void TestNoMaskingOfShiftCount() {
-    // Shifts which would behave differently if shift count was masked into a
-    // range.
-    Expect.equals(0, 0 >> 256);
-    Expect.equals(0, 1 >> 256);
-    Expect.equals(0, 2 >> 256);
-    Expect.equals(0, ShiftRight(0, 256));
-    Expect.equals(0, ShiftRight(1, 256));
-    Expect.equals(0, ShiftRight(2, 256));
-
-    for (int shift = 1; shift <= 256; shift++) {
-      Expect.equals(0, ShiftRight(1, shift));
-      Expect.equals(-1, ShiftRight(-1, shift));
-      Expect.equals(true, ShiftLeft(1, shift) > ShiftLeft(1, shift - 1));
-    }
-  }
-
-  static int ShiftLeft(int a, int b) { return a << b; }
-  static int ShiftRight(int a, int b) { return a >> b; }
-}
-
-main() {
-  BitOperationsTest.testMain();
-}