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Unified Diff: pkg/fixnum/test/int_32_test.dart

Issue 19669002: Migrate fixnum tests to unittest. Fix int32 rollover bug. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 7 years, 5 months ago
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Index: pkg/fixnum/test/int_32_test.dart
diff --git a/pkg/fixnum/test/int_32_test.dart b/pkg/fixnum/test/int_32_test.dart
index 407f2a0adf12d093a9dff389496dc05c2fdb84f4..9709d4229d3f3860136a55e9d7dafd5ac6e741e1 100644
--- a/pkg/fixnum/test/int_32_test.dart
+++ b/pkg/fixnum/test/int_32_test.dart
@@ -3,157 +3,233 @@
// BSD-style license that can be found in the LICENSE file.
library int32test;
-import "package:expect/expect.dart";
import 'package:fixnum/fixnum.dart';
+import 'package:unittest/unittest.dart';
void main() {
- Expect.equals("0", new int32.fromInt(0).toString());
- Expect.equals("1", new int32.fromInt(1).toString());
- Expect.equals("-1", new int32.fromInt(-1).toString());
- Expect.equals("1000", new int32.fromInt(1000).toString());
- Expect.equals("-1000", new int32.fromInt(-1000).toString());
- Expect.equals("2147483647", new int32.fromInt(2147483647).toString());
- Expect.equals("-2147483648", new int32.fromInt(2147483648).toString());
- Expect.equals("-2147483647", new int32.fromInt(2147483649).toString());
- Expect.equals("-2147483646", new int32.fromInt(2147483650).toString());
- Expect.equals("-2147483648", new int32.fromInt(-2147483648).toString());
- Expect.equals("2147483647", new int32.fromInt(-2147483649).toString());
- Expect.equals("2147483646", new int32.fromInt(-2147483650).toString());
-
- Expect.equals("-1", new int32.fromInt(-1).toHexString());
- Expect.equals("-1", (new int32.fromInt(-1) >> 8).toHexString());
- Expect.equals("-100", (new int32.fromInt(-1) << 8).toHexString());
- Expect.equals("ffffff",
- new int32.fromInt(-1).shiftRightUnsigned(8).toHexString());
-
- Expect.equals("123456789", new int32.fromInt(123456789).toString());
- Expect.equals("75bcd15", new int32.fromInt(123456789).toHexString());
- Expect.equals("223101104124", new int32.fromInt(123456789).toRadixString(5));
-
- try {
- new int32.fromInt(17) >> -1;
- Expect.fail("x >> -1 should throw ArgumentError");
- } on ArgumentError catch (e) {
- }
-
- try {
- new int32.fromInt(17) << -1;
- Expect.fail("x >> -1 should throw ArgumentError");
- } on ArgumentError catch (e) {
- }
-
- try {
- new int32.fromInt(17).shiftRightUnsigned(-1);
- Expect.fail("x >> -1 should throw ArgumentError");
- } on ArgumentError catch (e) {
- }
-
- // wraparound
- Expect.equals("-67153019", (new int32.fromInt(123456789) *
- new int32.fromInt(987654321)).toString());
- Expect.equals("121932631112635269", (new int64.fromInt(123456789) *
- new int32.fromInt(987654321)).toString());
- Expect.equals("121932631112635269", (new int32.fromInt(123456789) *
- new int64.fromInt(987654321)).toString());
- Expect.equals("121932631112635269", (new int64.fromInt(123456789) *
- new int64.fromInt(987654321)).toString());
-
- Expect.equals("432461",
- (new int32.fromInt(829893893) ~/ new int32.fromInt(1919)).toString());
- Expect.equals("432461",
- (new int32.fromInt(829893893) ~/ new int64.fromInt(1919)).toString());
- Expect.equals("432461",
- (new int64.fromInt(829893893) ~/ new int32.fromInt(1919)).toString());
- Expect.equals("432461",
- (new int64.fromInt(829893893) ~/ new int64.fromInt(1919)).toString());
- Expect.equals("432461",
- (new int32.fromInt(829893893) ~/ 1919).toString());
- Expect.equals("432461",
- (new int64.fromInt(829893893) ~/ 1919).toString());
-
- Expect.isTrue(new int32.fromInt(12345) == 12345);
- Expect.isTrue(new int32.fromInt(12345) == new int32.fromInt(12345));
- Expect.isTrue(new int64.fromInt(12345) == new int32.fromInt(12345));
-
- Expect.equals(new int32.fromInt(~0x12345678),
- ~(new int32.fromInt(0x12345678)));
- Expect.equals(new int64.fromInt(-0x12345678),
- -(new int32.fromInt(0x12345678)));
-
- Expect.equals(new int32.fromInt(0x12345678 & 0x22222222),
- new int32.fromInt(0x12345678) & new int32.fromInt(0x22222222));
- Expect.equals(new int64.fromInt(0x12345678 & 0x22222222),
- new int32.fromInt(0x12345678) & new int64.fromInt(0x22222222));
- Expect.equals(new int32.fromInt(0x12345678 | 0x22222222),
- new int32.fromInt(0x12345678) | new int32.fromInt(0x22222222));
- Expect.equals(new int64.fromInt(0x12345678 | 0x22222222),
- new int32.fromInt(0x12345678) | new int64.fromInt(0x22222222));
- Expect.equals(new int32.fromInt(0x12345678 ^ 0x22222222),
- new int32.fromInt(0x12345678) ^ new int32.fromInt(0x22222222));
- Expect.equals(new int64.fromInt(0x12345678 ^ 0x22222222),
- new int32.fromInt(0x12345678) ^ new int64.fromInt(0x22222222));
-
- Expect.equals(new int32.fromInt(0x12345678 + 0x22222222),
- new int32.fromInt(0x12345678) + new int32.fromInt(0x22222222));
- Expect.equals(new int64.fromInt(0x12345678 + 0x22222222),
- new int32.fromInt(0x12345678) + new int64.fromInt(0x22222222));
- Expect.equals(new int32.fromInt(0x12345678 - 0x22222222),
- new int32.fromInt(0x12345678) - new int32.fromInt(0x22222222));
- Expect.equals(new int64.fromInt(0x12345678 - 0x22222222),
- new int32.fromInt(0x12345678) - new int64.fromInt(0x22222222));
- Expect.equals(new int32.fromInt(-899716112),
- new int32.fromInt(0x12345678) * new int32.fromInt(0x22222222));
- Expect.equals(new int64.fromInts(0x026D60DC, 0xCA5F6BF0),
- new int32.fromInt(0x12345678) * new int64.fromInt(0x22222222));
- Expect.equals(new int32.fromInt(0x12345678 % 0x22),
- new int32.fromInt(0x12345678) % new int32.fromInt(0x22));
- Expect.equals(new int32.fromInt(0x12345678 % 0x22),
- new int32.fromInt(0x12345678) % new int64.fromInt(0x22));
- Expect.equals(new int32.fromInt(0x12345678.remainder(0x22)),
- new int32.fromInt(0x12345678).remainder(new int32.fromInt(0x22)));
- Expect.equals(new int32.fromInt(0x12345678.remainder(-0x22)),
- new int32.fromInt(0x12345678).remainder(new int32.fromInt(-0x22)));
- Expect.equals(new int32.fromInt(-0x12345678.remainder(-0x22)),
- new int32.fromInt(-0x12345678).remainder(new int32.fromInt(-0x22)));
- Expect.equals(new int32.fromInt(-0x12345678.remainder(0x22)),
- new int32.fromInt(-0x12345678).remainder(new int32.fromInt(0x22)));
- Expect.equals(new int32.fromInt(0x12345678.remainder(0x22)),
- new int32.fromInt(0x12345678).remainder(new int64.fromInt(0x22)));
- Expect.equals(new int32.fromInt(0x12345678 ~/ 0x22),
- new int32.fromInt(0x12345678) ~/ new int32.fromInt(0x22));
- Expect.equals(new int32.fromInt(0x12345678 ~/ 0x22),
- new int32.fromInt(0x12345678) ~/ new int64.fromInt(0x22));
-
- Expect.equals(new int32.fromInt(0x12345678 >> 7),
- new int32.fromInt(0x12345678) >> 7);
- Expect.equals(new int32.fromInt(0x12345678 << 7),
- new int32.fromInt(0x12345678) << 7);
- Expect.equals(new int32.fromInt(0x12345678 >> 7),
- new int32.fromInt(0x12345678).shiftRightUnsigned(7));
-
- try {
- new int32.fromInt(17) < null;
- Expect.fail("x < null should throw ArgumentError");
- } on ArgumentError catch (e) {
- }
-
- try {
- new int32.fromInt(17) <= null;
- Expect.fail("x <= null should throw ArgumentError");
- } on ArgumentError catch (e) {
- }
-
- try {
- new int32.fromInt(17) > null;
- Expect.fail("x > null should throw ArgumentError");
- } on ArgumentError catch (e) {
- }
-
- try {
- new int32.fromInt(17) < null;
- Expect.fail("x >= null should throw ArgumentError");
- } on ArgumentError catch (e) {
- }
-
- Expect.isFalse(new int32.fromInt(17) == null);
+ group("arithmetic operators", () {
+ int32 n1 = new int32.fromInt(1234);
+ int32 n2 = new int32.fromInt(9876);
+ int32 n3 = new int32.fromInt(-1234);
+ int32 n4 = new int32.fromInt(-9876);
+ int32 n5 = new int32.fromInt(0x12345678);
+ int32 n6 = new int32.fromInt(0x22222222);
+
+ test("+", () {
+ expect(n1 + n2, new int32.fromInt(11110));
+ expect(n3 + n2, new int32.fromInt(8642));
+ expect(n3 + n4, new int32.fromInt(-11110));
+ expect(int32.MAX_VALUE + 1, int32.MIN_VALUE);
+ expect(() => (new int32.fromInt(17) + null), throws);
+ });
+
+ test("-", () {
+ expect(n1 - n2, new int32.fromInt(-8642));
+ expect(n3 - n2, new int32.fromInt(-11110));
+ expect(n3 - n4, new int32.fromInt(8642));
+ expect(int32.MIN_VALUE - 1, int32.MAX_VALUE);
+ expect(() => (new int32.fromInt(17) - null), throws);
+ });
+
+ test("unary -", () {
+ expect(-n1, new int32.fromInt(-1234));
+ expect(-int32.ZERO, int32.ZERO);
+ });
+
+ test("*", () {
+ expect(n1 * n2, new int32.fromInt(12186984));
+ expect(n2 * n3, new int32.fromInt(-12186984));
+ expect(n3 * n3, new int32.fromInt(1522756));
+ expect(n3 * n2, new int32.fromInt(-12186984));
+ expect(new int32.fromInt(0x12345678) * new int32.fromInt(0x22222222),
+ new int32.fromInt(-899716112));
+ expect((new int32.fromInt(123456789) * new int32.fromInt(987654321)),
+ new int32.fromInt(-67153019));
+ expect(new int32.fromInt(0x12345678) * new int64.fromInt(0x22222222),
+ new int64.fromInts(0x026D60DC, 0xCA5F6BF0));
+ expect((new int32.fromInt(123456789) * 987654321),
+ new int32.fromInt(-67153019));
+ expect(() => (new int32.fromInt(17) * null), throws);
+ });
+
+ test("~/", () {
+ expect(new int32.fromInt(829893893) ~/ new int32.fromInt(1919),
+ new int32.fromInt(432461));
+ expect(new int32.fromInt(0x12345678) ~/ new int32.fromInt(0x22),
+ new int32.fromInt(0x12345678 ~/ 0x22));
+ expect(new int32.fromInt(829893893) ~/ new int64.fromInt(1919),
+ new int32.fromInt(432461));
+ expect(new int32.fromInt(0x12345678) ~/ new int64.fromInt(0x22),
+ new int32.fromInt(0x12345678 ~/ 0x22));
+ expect(new int32.fromInt(829893893) ~/ 1919, new int32.fromInt(432461));
+ expect(() => (new int32.fromInt(17) ~/ null), throws);
+ });
+
+ test("%", () {
+ expect(new int32.fromInt(0x12345678) % new int32.fromInt(0x22),
+ new int32.fromInt(0x12345678 % 0x22));
+ expect(new int32.fromInt(0x12345678) % new int64.fromInt(0x22),
+ new int32.fromInt(0x12345678 % 0x22));
+ expect(() => (new int32.fromInt(17) % null), throws);
+ });
+
+ test("remainder", () {
+ expect(new int32.fromInt(0x12345678).remainder(new int32.fromInt(0x22)),
+ new int32.fromInt(0x12345678.remainder(0x22)));
+ expect(new int32.fromInt(0x12345678).remainder(new int32.fromInt(-0x22)),
+ new int32.fromInt(0x12345678.remainder(-0x22)));
+ expect(new int32.fromInt(-0x12345678).remainder(new int32.fromInt(-0x22)),
+ new int32.fromInt(-0x12345678.remainder(-0x22)));
+ expect(new int32.fromInt(-0x12345678).remainder(new int32.fromInt(0x22)),
+ new int32.fromInt(-0x12345678.remainder(0x22)));
+ expect(new int32.fromInt(0x12345678).remainder(new int64.fromInt(0x22)),
+ new int32.fromInt(0x12345678.remainder(0x22)));
+ expect(() => (new int32.fromInt(17).remainder(null)), throws);
+ });
+ });
+
+ group("comparison operators", () {
+ test("<", () {
+ expect(new int32.fromInt(17) < new int32.fromInt(18), true);
+ expect(new int32.fromInt(17) < new int32.fromInt(17), false);
+ expect(new int32.fromInt(17) < new int32.fromInt(16), false);
+ expect(int32.MIN_VALUE < int32.MAX_VALUE, true);
+ expect(int32.MAX_VALUE < int32.MIN_VALUE, false);
+ expect(() => new int32.fromInt(17) < null, throws);
+ });
+
+ test("<=", () {
+ expect(new int32.fromInt(17) <= new int32.fromInt(18), true);
+ expect(new int32.fromInt(17) <= new int32.fromInt(17), true);
+ expect(new int32.fromInt(17) <= new int32.fromInt(16), false);
+ expect(int32.MIN_VALUE <= int32.MAX_VALUE, true);
+ expect(int32.MAX_VALUE <= int32.MIN_VALUE, false);
+ expect(() => new int32.fromInt(17) <= null, throws);
+ });
+
+ test("==", () {
+ expect(new int32.fromInt(17) == new int32.fromInt(18), false);
+ expect(new int32.fromInt(17) == new int32.fromInt(17), true);
+ expect(new int32.fromInt(17) == new int32.fromInt(16), false);
+ expect(int32.MIN_VALUE == int32.MAX_VALUE, false);
+ expect(new int32.fromInt(17) == null, false);
+ });
+
+ test(">=", () {
+ expect(new int32.fromInt(17) >= new int32.fromInt(18), false);
+ expect(new int32.fromInt(17) >= new int32.fromInt(17), true);
+ expect(new int32.fromInt(17) >= new int32.fromInt(16), true);
+ expect(int32.MIN_VALUE >= int32.MAX_VALUE, false);
+ expect(int32.MAX_VALUE >= int32.MIN_VALUE, true);
+ expect(() => new int32.fromInt(17) >= null, throws);
+ });
+
+ test(">", () {
+ expect(new int32.fromInt(17) > new int32.fromInt(18), false);
+ expect(new int32.fromInt(17) > new int32.fromInt(17), false);
+ expect(new int32.fromInt(17) > new int32.fromInt(16), true);
+ expect(int32.MIN_VALUE > int32.MAX_VALUE, false);
+ expect(int32.MAX_VALUE > int32.MIN_VALUE, true);
+ expect(() => new int32.fromInt(17) > null, throws);
+ });
+ });
+
+ group("bitwise operators", () {
+ test("&", () {
+ expect(new int32.fromInt(0x12345678) & new int32.fromInt(0x22222222),
+ new int32.fromInt(0x12345678 & 0x22222222));
+ expect(new int32.fromInt(0x12345678) & new int64.fromInt(0x22222222),
+ new int64.fromInt(0x12345678 & 0x22222222));
+ expect(() => (new int32.fromInt(17) & null), throwsArgumentError);
+ });
+
+ test("|", () {
+ expect(new int32.fromInt(0x12345678) | new int32.fromInt(0x22222222),
+ new int32.fromInt(0x12345678 | 0x22222222));
+ expect(new int32.fromInt(0x12345678) | new int64.fromInt(0x22222222),
+ new int64.fromInt(0x12345678 | 0x22222222));
+ expect(() => (new int32.fromInt(17) | null), throws);
+ });
+
+ test("^", () {
+ expect(new int32.fromInt(0x12345678) ^ new int32.fromInt(0x22222222),
+ new int32.fromInt(0x12345678 ^ 0x22222222));
+ expect(new int32.fromInt(0x12345678) ^ new int64.fromInt(0x22222222),
+ new int64.fromInt(0x12345678 ^ 0x22222222));
+ expect(() => (new int32.fromInt(17) ^ null), throws);
+ });
+
+ test("~", () {
+ expect(~(new int32.fromInt(0x12345678)), new int32.fromInt(~0x12345678));
+ expect(-(new int32.fromInt(0x12345678)), new int64.fromInt(-0x12345678));
+ });
+ });
+
+ group("bitshift operators", () {
+ test("<<", () {
+ expect(new int32.fromInt(0x12345678) << 7,
+ new int32.fromInt(0x12345678 << 7));
+ expect(() => (new int32.fromInt(17) << -1), throwsArgumentError);
+ expect(() => (new int32.fromInt(17) << null), throws);
+ });
+
+ test(">>", () {
+ expect(new int32.fromInt(0x12345678) >> 7,
+ new int32.fromInt(0x12345678 >> 7));
+ expect(() => (new int32.fromInt(17) >> -1), throwsArgumentError);
+ expect(() => (new int32.fromInt(17) >> null), throws);
+ });
+
+ test("shiftRightUnsigned", () {
+ expect(new int32.fromInt(0x12345678).shiftRightUnsigned(7),
+ new int32.fromInt(0x12345678 >> 7));
+ expect(() => (new int32.fromInt(17).shiftRightUnsigned(-1)),
+ throwsArgumentError);
+ expect(() => (new int32.fromInt(17).shiftRightUnsigned(null)), throws);
+ });
+ });
+
+ group("type conversions", () {
+ expect(new int32.fromInt(17).toInt(), 17);
+ expect(new int32.fromInt(-17).toInt(), -17);
+ expect(new int32.fromInt(17).toInt32(), new int32.fromInt(17));
+ expect(new int32.fromInt(-17).toInt32(), new int32.fromInt(-17));
+ expect(new int32.fromInt(17).toInt64(), new int64.fromInt(17));
+ expect(new int32.fromInt(-17).toInt64(), new int64.fromInt(-17));
+ });
+
+ group("string representation", () {
+ test("toString", () {
+ expect(new int32.fromInt(0).toString(), "0");
+ expect(new int32.fromInt(1).toString(), "1");
+ expect(new int32.fromInt(-1).toString(), "-1");
+ expect(new int32.fromInt(1000).toString(), "1000");
+ expect(new int32.fromInt(-1000).toString(), "-1000");
+ expect(new int32.fromInt(123456789).toString(), "123456789");
+ expect(new int32.fromInt(2147483647).toString(), "2147483647");
+ expect(new int32.fromInt(2147483648).toString(), "-2147483648");
+ expect(new int32.fromInt(2147483649).toString(), "-2147483647");
+ expect(new int32.fromInt(2147483650).toString(), "-2147483646");
+ expect(new int32.fromInt(-2147483648).toString(), "-2147483648");
+ expect(new int32.fromInt(-2147483649).toString(), "2147483647");
+ expect(new int32.fromInt(-2147483650).toString(), "2147483646");
+ });
+ });
+
+ group("toHexString", () {
+ test("returns hexadecimal string representation", () {
+ expect(new int32.fromInt(-1).toHexString(), "-1");
+ expect((new int32.fromInt(-1) >> 8).toHexString(), "-1");
+ expect((new int32.fromInt(-1) << 8).toHexString(), "-100");
+ expect(new int32.fromInt(123456789).toHexString(), "75bcd15");
+ expect(new int32.fromInt(-1).shiftRightUnsigned(8).toHexString(),
+ "ffffff");
+ });
+ });
+
+ group("toRadixString", () {
+ test("returns base n string representation", () {
+ expect(new int32.fromInt(123456789).toRadixString(5), "223101104124");
+ });
+ });
}
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