using System; using Cosmos.TestRunner; namespace Cosmos.Compiler.Tests.Bcl.System { internal static class Int16Test { public static void Execute() { short value; string result; string expectedResult; value = Int16.MaxValue; result = value.ToString(); expectedResult = "32767"; Assert.IsTrue((result == expectedResult), "Int16.ToString doesn't work"); // Now let's try to concat to a String using '+' operator result = "The Maximum value of an Int16 is " + value; expectedResult = "The Maximum value of an Int16 is 32767"; Assert.IsTrue((result == expectedResult), "String concat (Int16) doesn't work"); // Now let's try to use '$ instead of '+' result = $"The Maximum value of an Int16 is {value}"; // Actually 'expectedResult' should be the same so... Assert.IsTrue((result == expectedResult), "String format (Int16) doesn't work"); // Now let's Get the HashCode of a value int resultAsInt = value.GetHashCode(); // actually the Hash Code of a Int16 is some strange XOR trick int expectedResultAsInt = ((int)((ushort)value) | (((int)value) << 16)); Assert.IsTrue((resultAsInt == expectedResultAsInt), "Int16.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 = "7FFF"; Assert.IsTrue((result == expectedResult), "Int16.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, "Int16 bitwise not doesn't work got: " + val2); val2 = value & 0x06; // low-order bits: val2 = value & 0b0000_0110 = 0b0000_0100 Assert.IsTrue(val2 == 0x04, "Int16 bitwise and doesn't work got: " + val2); val2 = value | 0x06; // low-order bits: val2 = value | 0b0000_0110 = 0b0000_1110 Assert.IsTrue(val2 == 0x0E, "Int16 bitwise or doesn't work got: " + val2); val2 = value ^ 0x06; // low-order bits: val2 = value ^ 0b0000_0110 = 0b0000_1010 Assert.IsTrue(val2 == 0x0A, "Int16 bitwise xor doesn't work got: " + val2); val2 = value >> 0x02; // low-order bits: val2 = value >> 0b0000_0010 = 0b0000_0011 Assert.IsTrue(val2 == 0x03, "Int16 left shift doesn't work got: " + val2); val2 = value << 0x02; // low-order bits: val2 = value << 0b0000_0010 = 0b0011_0000 Assert.IsTrue(val2 == 0x30, "Int16 right shift doesn't work got: " + val2); // basic arithmetic operations value = 60; val2 = value + 5; Assert.IsTrue(val2 == 65, "Int16 addition doesn't work got: " + val2); val2 = value - 5; Assert.IsTrue(val2 == 55, "Int16 subtraction doesn't work got: " + val2); val2 = value * 5; Assert.IsTrue(val2 == 300, "Int16 multiplication doesn't work got: " + val2); val2 = value / 5; Assert.IsTrue(val2 == 12, "Int16 division doesn't work got: " + val2); val2 = value % 7; Assert.IsTrue(val2 == 4, "Int16 remainder doesn't work got: " + val2); // Now test conversions short maxValue = Int16.MaxValue; short minValue = Int16.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 Int16 doesn't work"); Assert.IsTrue((sbyte)minValue == 0x00, "Conv_I1 for Int16 doesn't work"); // Test Conv_U1 Assert.IsTrue((byte)maxValue == 0xFF, "Conv_U1 for Int16 doesn't work"); Assert.IsTrue((byte)minValue == 0x00, "Conv_U1 for Int16 doesn't work"); // Test Conv_I2 Assert.IsTrue((short)maxValue == 0x7FFF, "Conv_I2 for Int16 doesn't work"); Assert.IsTrue((short)minValue == -0x8000, "Conv_I2 for Int16 doesn't work"); // Test Conv_U2 Assert.IsTrue((ushort)maxValue == 0x7FFF, "Conv_U2 for Int16 doesn't work"); Assert.IsTrue((ushort)minValue == 0x8000, "Conv_U2 for Int16 doesn't work"); // Test Conv_I4 Assert.IsTrue((int)maxValue == 0x00007FFF, "Conv_I4 for Int16 doesn't work"); Assert.IsTrue((int)minValue == -0x00008000, "Conv_I4 for Int16 doesn't work"); // Test Conv_U4 Assert.IsTrue((uint)maxValue == 0x00007FFF, "Conv_U4 for Int16 doesn't work"); Assert.IsTrue((uint)minValue == 0xFFFF8000, "Conv_U4 for Int16 doesn't work"); // Test Conv_I8 Assert.IsTrue((long)maxValue == 0x0000000000007FFF, "Conv_I8 for Int16 doesn't work"); Assert.IsTrue((long)minValue == -0x0000000000008000, "Conv_I8 for Int16 doesn't work"); // Test Conv_U8 Assert.IsTrue((ulong)maxValue == 0x0000000000007FFF, "Conv_U8 for Int16 doesn't work"); Assert.IsTrue((ulong)minValue == 0xFFFFFFFFFFFF8000, "Conv_U8 for Int16 doesn't work"); // Test Conv_R4 Assert.IsTrue((float)maxValue == Int16.MaxValue, "Conv_R4 for Int16 doesn't work"); Assert.IsTrue((float)minValue == Int16.MinValue, "Conv_R4 for Int16 doesn't work"); // Test Conv_R8 Assert.IsTrue((double)maxValue == Int16.MaxValue, "Conv_R8 for Int16 doesn't work"); Assert.IsTrue((double)minValue == Int16.MinValue, "Conv_R8 for Int16 doesn't work"); //Test checked conversions int val = 1; long test = 125; // Test Conv_Ovf_I2 checked { Assert.IsTrue((short)val == 1, "Conv_Ovf_I2 doesn't work(throws incorrectly)"); short x = 0; bool error = false; try { x = (short)(val + short.MaxValue); } catch (Exception) { error = true; } Assert.IsTrue(error, "Conv_Ovf_I2 doesn't work(error was not thrown): " + x); Assert.IsTrue((short)test == 0x7D, "Conv_Ovf_I2 for long to short doesn't work(throws incorrectly)"); error = false; try { x = (short)(val + 0x8_0000_0000); } catch (Exception) { error = true; } Assert.IsTrue(error, "Conv_Ovf_I2 for from positive long to short doesn't work(error was not thrown): " + x); error = false; try { x = (short)(val + -0x8_0000_0001); } catch (Exception) { error = true; } Assert.IsTrue(error, "Conv_Ovf_I2 for from negative long to short doesn't work(error was not thrown): " + x); } // Test Conv_Ovf_I2_Un checked { Assert.IsTrue((short)(uint)125 == 0x7D, "Conv_Ovf_I2_Un doesn't work(throws incorrectly)"); short x = 0; bool error = false; try { x = (short)(uint)(val + short.MaxValue); } catch (Exception) { error = true; } Assert.IsTrue(error, "Conv_Ovf_I2_Un doesn't work(error was not thrown): " + x); } // Test Methods val2 = TestMethod(value); Assert.IsTrue(value == 60, "Passing an Int16 as a method parameter doesn't work"); Assert.IsTrue(val2 == 61, "Returning an Int16 value from a method doesn't work"); ByRefTestMethod(ref value); Assert.IsTrue(value == 61, "Passing an Int16 by ref to a method doesn't work"); } public static short TestMethod(short aParam) { aParam++; return aParam; } public static void ByRefTestMethod(ref short aParam) { aParam++; } } }