Add corelib tests

test/codegen/corelib/expression_test.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.
+
+import "package:expect/expect.dart";
+
+// Tests basic expressions. Does not attempt to validate the details of arithmetic, coercion, and
+// so forth.
+class ExpressionTest {
+
+  ExpressionTest() {}
+
+  int foo;
+
+  static testMain() {
+    var test = new ExpressionTest();
+    test.testBinary();
+    test.testUnary();
+    test.testShifts();
+    test.testBitwise();
+    test.testIncrement();
+    test.testMangling();
+  }
+
+  testBinary() {
+    int x = 4, y = 2;
+    Expect.equals(6, x + y);
+    Expect.equals(2, x - y);
+    Expect.equals(8, x * y);
+    Expect.equals(2, x / y);
+    Expect.equals(0, x % y);
+  }
+
+  testUnary() {
+    int x = 4, y = 2, z = -5;
+    bool t = true, f = false;
+    Expect.equals(-4, -x);
+    Expect.equals(4, ~z);
+    Expect.equals(f, !t);
+  }
+
+  testShifts() {
+    int x = 4, y = 2;
+    Expect.equals(y, x >> 1);
+    Expect.equals(x, y << 1);
+  }
+
+  testBitwise() {
+    int x = 4, y = 2;
+    Expect.equals(6, (x | y));
+    Expect.equals(0, (x & y));
+    Expect.equals(6, (x ^ y));
+  }
+
+  operator [](int index) {
+    return foo;
+  }
+
+  operator []=(int index, int value) {
+    foo = value;
+  }
+
+  testIncrement() {
+    int x = 4, a = x++;
+    Expect.equals(4, a);
+    Expect.equals(5, x);
+    Expect.equals(6, ++x);
+    Expect.equals(6, x++);
+    Expect.equals(7, x);
+    Expect.equals(6, --x);
+    Expect.equals(6, x--);
+    Expect.equals(5, x);
+
+    this.foo = 0;
+    Expect.equals(0, this.foo++);
+    Expect.equals(1, this.foo);
+    Expect.equals(2, ++this.foo);
+    Expect.equals(2, this.foo);
+    Expect.equals(2, this.foo--);
+    Expect.equals(1, this.foo);
+    Expect.equals(0, --this.foo);
+    Expect.equals(0, this.foo);
+
+    Expect.equals(0, this[0]++);
+    Expect.equals(1, this[0]);
+    Expect.equals(2, ++this[0]);
+    Expect.equals(2, this[0]);
+    Expect.equals(2, this[0]--);
+    Expect.equals(1, this[0]);
+    Expect.equals(0, --this[0]);
+    Expect.equals(0, this[0]);
+
+    int $0 = 42, $1 = 87, $2 = 117;
+    Expect.equals(42, $0++);
+    Expect.equals(43, $0);
+    Expect.equals(44, ++$0);
+    Expect.equals(88, $0 += $0);
+    Expect.equals(87, $1++);
+    Expect.equals(88, $1);
+    Expect.equals(89, ++$1);
+    Expect.equals(178, ($1 += $1));
+    Expect.equals(117, $2++);
+    Expect.equals(118, $2);
+    Expect.equals(119, ++$2);
+  }
+
+  void testMangling() {
+    int $0 = 42, $1 = 87, $2 = 117;
+    this[0] = 0;
+    Expect.equals(42, (this[0] += $0));
+    Expect.equals(129, (this[0] += $1));
+    Expect.equals(246, (this[0] += $2));
+  }
+}
+
+main() {
+  ExpressionTest.testMain();
+}