using System; using Cosmos.TestRunner; namespace Cosmos.Compiler.Tests.Bcl.System { internal static class UInt32Test { public static void Execute() { uint value; string result; string expectedResult; value = UInt32.MaxValue; result = value.ToString(); expectedResult = "4294967295"; //Assert.IsTrue((result == expectedResult), "UInt32.ToString doesn't work"); // Now let's try to concat to a String using '+' operator result = "The Maximum value of an UInt32 is " + value; expectedResult = "The Maximum value of an UInt32 is 4294967295"; Assert.IsTrue((result == expectedResult), "String concat (UInt32) doesn't work"); // Now let's try to use '$ instead of '+' result = $"The Maximum value of an UInt32 is {value}"; // Actually 'expectedResult' should be the same so... Assert.IsTrue((result == expectedResult), "String format (UInt32) doesn't work"); // Now let's Get the HashCode of a value int resultAsInt = value.GetHashCode(); // actually the Hash Code of a Int32 is the same value (but expressed as Int32 so could have sign!) Assert.IsTrue((resultAsInt == (int)value), "UInt32.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 uint val2; value = 0x0C; // low-order bits: 0b0000_1100 val2 = ~value; // val2 = ~value = low-order bits: 0b1111_0011 Assert.IsTrue(val2 == 0xFFFFFFF3, "UInt32 bitwise not doesn't work got: " + val2); val2 = value & 0x06; // low-order bits: val2 = value & 0b0000_0110 = 0b0000_0100 Assert.IsTrue(val2 == 0x04, "UInt32 bitwise and doesn't work got: " + val2); val2 = value | 0x06; // low-order bits: val2 = value | 0b0000_0110 = 0b0000_1110 Assert.IsTrue(val2 == 0x0E, "UInt32 bitwise or doesn't work got: " + val2); val2 = value ^ 0x06; // low-order bits: val2 = value ^ 0b0000_0110 = 0b0000_1010 Assert.IsTrue(val2 == 0x0A, "UInt32 bitwise xor doesn't work got: " + val2); val2 = value >> 0x02; // low-order bits: val2 = value >> 0b0000_0010 = 0b0000_0011 Assert.IsTrue(val2 == 0x03, "UInt32 left shift doesn't work got: " + val2); val2 = value << 0x02; // low-order bits: val2 = value << 0b0000_0010 = 0b0011_0000 Assert.IsTrue(val2 == 0x30, "UInt32 right shift doesn't work got: " + val2); // basic arithmetic operations value = 60; val2 = value + 5; Assert.IsTrue(val2 == 65, "UInt32 addition doesn't work got: " + val2); val2 = value - 5; Assert.IsTrue(val2 == 55, "UInt32 subtraction doesn't work got: " + val2); val2 = value * 5; Assert.IsTrue(val2 == 300, "UInt32 multiplication doesn't work got: " + val2); val2 = value / 5; Assert.IsTrue(val2 == 12, "UInt32 division doesn't work got: " + val2); val2 = value % 7; Assert.IsTrue(val2 == 4, "UInt32 remainder doesn't work got: " + val2); // Now test conversions uint maxValue = UInt32.MaxValue; uint minValue = UInt32.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 == -1, "Conv_I1 for UInt32 doesn't work"); Assert.IsTrue((sbyte)minValue == 0, "Conv_I1 for UInt32 doesn't work"); // Test Conv_U1 Assert.IsTrue((byte)maxValue == 0xFF, "Conv_U1 for UInt32 doesn't work"); Assert.IsTrue((byte)minValue == 0x00, "Conv_U1 for UInt32 doesn't work"); // Test Conv_I2 Assert.IsTrue((short)maxValue == -0x0001, "Conv_I2 for UInt32 doesn't work"); Assert.IsTrue((short)minValue == 0x0000, "Conv_I2 for UInt32 doesn't work"); // Test Conv_U2 Assert.IsTrue((ushort)maxValue == 0xFFFF, "Conv_U2 for UInt32 doesn't work"); Assert.IsTrue((ushort)minValue == 0x0000, "Conv_U2 for UInt32 doesn't work"); // Test Conv_I4 Assert.IsTrue((int)maxValue == -0x00000001, "Conv_I4 for UInt32 doesn't work"); Assert.IsTrue((int)minValue == 0x00000000, "Conv_I4 for UInt32 doesn't work"); // Test Conv_U4 Assert.IsTrue((uint)maxValue == 0xFFFFFFFF, "Conv_U4 for UInt32 doesn't work"); Assert.IsTrue((uint)minValue == 0x00000000, "Conv_U4 for UInt32 doesn't work"); // Test Conv_I8 Assert.IsTrue((long)maxValue == 0x00000000FFFFFFFF, "Conv_I8 for UInt32 doesn't work"); Assert.IsTrue((long)minValue == 0x0000000000000000, "Conv_I8 for UInt32 doesn't work"); // Test Conv_U8 Assert.IsTrue((ulong)maxValue == 0x00000000FFFFFFFF, "Conv_U8 for UInt32 doesn't work"); Assert.IsTrue((ulong)minValue == 0x0000000000000000, "Conv_U8 for UInt32 doesn't work"); // Test Conv_R4 Assert.IsTrue((float)maxValue == uint.MaxValue, "Conv_R4 for UInt32 doesn't work"); Assert.IsTrue((float)minValue == uint.MinValue, "Conv_R4 for UInt32 doesn't work"); // Test Conv_R8 Assert.IsTrue((double)maxValue == uint.MaxValue, "Conv_R8 for UInt32 doesn't work"); Assert.IsTrue((double)minValue == uint.MinValue, "Conv_R8 for UInt32 doesn't work"); //Test checked conversions long val = 1; // Test Conv_Ovf_U4 checked { Assert.IsTrue((uint)(long)125 == 0x7D, "Conv_Ovf_U4 doesn't work(throws incorrectly)"); uint x = 0; bool error = false; try { x = (uint)(uint.MaxValue + val); } catch (Exception) { error = true; } Assert.IsTrue(error, "Conv_Ovf_U4 doesn't work(error was not thrown): " + x); try { int y = 1; x = (uint)(-80 + y); } catch (Exception) { error = true; } Assert.IsTrue(error, "Conv_Ovf_U4 doesn't work for negative integers(error was not thrown): " + x); } // Test Conv_Ovf_U4_Un checked { Assert.IsTrue((uint)(ulong)125 == 0x7D, "Conv_Ovf_U4_Un doesn't work(throws incorrectly)"); long max = uint.MaxValue; Assert.IsTrue((uint)(ulong)max == uint.MaxValue, "Conv_Ovf_U4_Un doesn't work(throws incorrectly)"); uint x = 0; bool error = false; try { x = (uint)(ulong)(val + uint.MaxValue); } catch (Exception) { error = true; } Assert.IsTrue(error, "Conv_Ovf_U4_Un doesn't work(error was not thrown): " + x); } //Test Methods val2 = TestMethod(value); Assert.IsTrue(value == 60, "Passing an UInt32 as a method parameter doesn't work"); Assert.IsTrue(val2 == 61, "Returning an UInt32 value from a method doesn't work"); ByRefTestMethod(ref value); Assert.IsTrue(value == 61, "Passing an UInt32 by ref to a method doesn't work"); uint val3o = 10000; bool efuse = false; try { checked { val3o += uint.MaxValue; } } catch (OverflowException) { efuse = true; } Assert.IsTrue(efuse, "Add_Ovf for UInt32 doesn't work: " + val3o); efuse = false; val3o = 10000; try { checked { val3o -= 2147483647; } } catch (OverflowException) { efuse = true; } Assert.IsTrue(efuse, "Sub_Ovf for UInt32 doesn't work: " + val3o); } public static uint TestMethod(uint aParam) { aParam++; return aParam; } public static void ByRefTestMethod(ref uint aParam) { aParam++; } } }