using System; using Cosmos.TestRunner; namespace Cosmos.Compiler.Tests.Bcl.System { internal static class Int32Test { public static void Execute() { bool efuse; int value; string result; string expectedResult; value = Int32.MaxValue; result = value.ToString(); expectedResult = "2147483647"; Assert.IsTrue((result == expectedResult), "Int32.ToString doesn't work"); // Now let's try to concat to a String using '+' operator result = "The Maximum value of an Int32 is " + value; expectedResult = "The Maximum value of an Int32 is 2147483647"; Assert.IsTrue((result == expectedResult), "String concat (Int32) doesn't work"); // Now let's try to use '$ instead of '+' result = $"The Maximum value of an Int32 is {value}"; // Actually 'expectedResult' should be the same so... Assert.IsTrue((result == expectedResult), "String format (Int32) doesn't work"); // Now let's Get the HashCode of a value int resultAsInt = value.GetHashCode(); // actually the Hash Code of an Int32 is the same value Assert.IsTrue((resultAsInt == value), "Int32.GetHashCode() doesn't work"); #if false // Now let's try ToString() again but printed in hex (this test fails for now!) result = value.ToString("X2"); expectedResult = "0x7FFFFFFF"; Assert.IsTrue((result == expectedResult), "Int32.ToString(X2) doesn't work"); #endif // basic bit operations int val2; value = 0x0C; // low-order bits: 0b0000_1100 val2 = ~value; // low-order bits: val2 = ~value = 0b1111_0011 Assert.IsTrue(val2 == -0x0D, "Int32 bitwise not doesn't work got: " + val2); val2 = value & 0x06; // low-order bits: val2 = value & 0b0000_0110 = 0b0000_0100 Assert.IsTrue(val2 == 0x04, "Int32 bitwise and doesn't work got: " + val2); val2 = value | 0x06; // low-order bits: val2 = value | 0b0000_0110 = 0b0000_1110 Assert.IsTrue(val2 == 0x0E, "Int32 bitwise or doesn't work got: " + val2); val2 = value ^ 0x06; // low-order bits: val2 = value ^ 0b0000_0110 = 0b0000_1010 Assert.IsTrue(val2 == 0x0A, "Int32 bitwise xor doesn't work got: " + val2); val2 = value >> 0x02; // low-order bits: val2 = value >> 0b0000_0010 = 0b0000_0011 Assert.IsTrue(val2 == 0x03, "Int32 left shift doesn't work got: " + val2); val2 = value << 0x02; // low-order bits: val2 = value << 0b0000_0010 = 0b0011_0000 Assert.IsTrue(val2 == 0x30, "Int32 right shift doesn't work got: " + val2); // basic arithmetic operations value = 60; val2 = value + 5; Assert.IsTrue(val2 == 65, "Int32 addition doesn't work got: " + val2); val2 = value - 5; Assert.IsTrue(val2 == 55, "Int32 subtraction doesn't work got: " + val2); val2 = value * 5; Assert.IsTrue(val2 == 300, "Int32 multiplication doesn't work got: " + val2); val2 = value / 5; Assert.IsTrue(val2 == 12, "Int32 division doesn't work got: " + val2); val2 = value % 7; Assert.IsTrue(val2 == 4, "Int32 remainder doesn't work got: " + val2); // Now test conversions int maxValue = Int32.MaxValue; int minValue = Int32.MinValue; // TODO: some convert instructions aren't being emitted, we should find other ways of getting them emitted // Test Conv_I1 Assert.IsTrue((sbyte)maxValue == -0x01, "Conv_I1 for Int32 doesn't work"); Assert.IsTrue((sbyte)minValue == 0x00, "Conv_I1 for Int32 doesn't work"); // Test Conv_U1 Assert.IsTrue((byte)maxValue == 0xFF, "Conv_U1 for Int32 doesn't work"); Assert.IsTrue((byte)minValue == 0x00, "Conv_U1 for Int32 doesn't work"); // Test Conv_I2 Assert.IsTrue((short)maxValue == -0x0001, "Conv_I2 for Int32 doesn't work"); Assert.IsTrue((short)minValue == 0x0000, "Conv_I2 for Int32 doesn't work"); // Test Conv_U2 Assert.IsTrue((ushort)maxValue == 0xFFFF, "Conv_U2 for Int32 doesn't work"); Assert.IsTrue((ushort)minValue == 0x0000, "Conv_U2 for Int32 doesn't work"); // Test Conv_I4 Assert.IsTrue((int)maxValue == 0x7FFFFFFF, "Conv_I4 for Int32 doesn't work"); Assert.IsTrue((int)minValue == -0x80000000, "Conv_I4 for Int32 doesn't work"); // Test Conv_U4 Assert.IsTrue((uint)maxValue == 0x7FFFFFFF, "Conv_U4 for Int32 doesn't work"); Assert.IsTrue((uint)minValue == 0x80000000, "Conv_U4 for Int32 doesn't work"); // Test Conv_I8 Assert.IsTrue((long)maxValue == 0x000000007FFFFFFF, "Conv_I8 for Int32 doesn't work"); Assert.IsTrue((long)minValue == -0x0000000080000000, "Conv_I8 for Int32 doesn't work"); // Test Conv_U8 Assert.IsTrue((ulong)maxValue == 0x00000007FFFFFFF, "Conv_U8 for Int32 doesn't work"); Assert.IsTrue((ulong)minValue == 0xFFFFFFFF80000000, "Conv_U8 for Int32 doesn't work"); // Test Conv_R4 Assert.IsTrue((float)maxValue == Int32.MaxValue, "Conv_R4 for Int32 doesn't work"); Assert.IsTrue((float)minValue == Int32.MinValue, "Conv_R4 for Int32 doesn't work"); // Test Conv_R8 Assert.IsTrue((double)maxValue == Int32.MaxValue, "Conv_R8 for Int32 doesn't work"); Assert.IsTrue((double)minValue == Int32.MinValue, "Conv_R8 for Int32 doesn't work"); // Test Methods val2 = TestMethod(value); Assert.IsTrue(value == 60, "Passing an Int32 as a method parameter doesn't work"); Assert.IsTrue(val2 == 61, "Returning an Int32 value from a method doesn't work"); ByRefTestMethod(ref value); Assert.IsTrue(value == 61, "Passing an Int32 by ref to a method doesn't work"); //Test Overflow Exceptions int val3o = 10000; efuse = false; try { checked { val3o += 2147483647; } } catch (OverflowException) { efuse = true; } Assert.IsTrue(efuse, "Add_Ovf for Int32 doesn't work: " + val3o); efuse = false; val3o = -10000; try { checked { val3o -= 2147483647; } } catch (OverflowException) { efuse = true; } Assert.IsTrue(efuse, "Sub_Ovf for Int32 doesn't work: " + val3o); Console.WriteLine("Finished Int32 Tests!"); } public static int TestMethod(int aParam) { aParam++; return aParam; } public static void ByRefTestMethod(ref int aParam) { aParam++; } } }