mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-19 12:30:32 +00:00
218 lines
8.4 KiB
C#
218 lines
8.4 KiB
C#
using System;
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using Cosmos.TestRunner;
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namespace Cosmos.Compiler.Tests.Bcl.System
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{
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internal static class Int16Test
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{
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public static void Execute()
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{
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short value;
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string result;
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string expectedResult;
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value = Int16.MaxValue;
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result = value.ToString();
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expectedResult = "32767";
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Assert.IsTrue((result == expectedResult), "Int16.ToString doesn't work");
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// Now let's try to concat to a String using '+' operator
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result = "The Maximum value of an Int16 is " + value;
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expectedResult = "The Maximum value of an Int16 is 32767";
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Assert.IsTrue((result == expectedResult), "String concat (Int16) doesn't work");
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// Now let's try to use '$ instead of '+'
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result = $"The Maximum value of an Int16 is {value}";
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// Actually 'expectedResult' should be the same so...
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Assert.IsTrue((result == expectedResult), "String format (Int16) doesn't work");
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// Now let's Get the HashCode of a value
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int resultAsInt = value.GetHashCode();
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// actually the Hash Code of a Int16 is some strange XOR trick
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int expectedResultAsInt = ((int)((ushort)value) | (((int)value) << 16));
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Assert.IsTrue((resultAsInt == expectedResultAsInt), "Int16.GetHashCode() doesn't work");
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#if false
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// Now let's try ToString() again but printed in hex (this test fails for now!)
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result = value.ToString("X2");
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expectedResult = "7FFF";
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Assert.IsTrue((result == expectedResult), "Int16.ToString(X2) doesn't work");
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#endif
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// basic bit operations
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int val2;
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value = 0x0C; // low-order bits: 0b0000_1100
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val2 = ~value; // low-order bits: val2 = ~value = 0b1111_0011
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Assert.IsTrue(val2 == -0x0D, "Int16 bitwise not doesn't work got: " + val2);
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val2 = value & 0x06; // low-order bits: val2 = value & 0b0000_0110 = 0b0000_0100
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Assert.IsTrue(val2 == 0x04, "Int16 bitwise and doesn't work got: " + val2);
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val2 = value | 0x06; // low-order bits: val2 = value | 0b0000_0110 = 0b0000_1110
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Assert.IsTrue(val2 == 0x0E, "Int16 bitwise or doesn't work got: " + val2);
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val2 = value ^ 0x06; // low-order bits: val2 = value ^ 0b0000_0110 = 0b0000_1010
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Assert.IsTrue(val2 == 0x0A, "Int16 bitwise xor doesn't work got: " + val2);
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val2 = value >> 0x02; // low-order bits: val2 = value >> 0b0000_0010 = 0b0000_0011
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Assert.IsTrue(val2 == 0x03, "Int16 left shift doesn't work got: " + val2);
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val2 = value << 0x02; // low-order bits: val2 = value << 0b0000_0010 = 0b0011_0000
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Assert.IsTrue(val2 == 0x30, "Int16 right shift doesn't work got: " + val2);
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// basic arithmetic operations
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value = 60;
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val2 = value + 5;
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Assert.IsTrue(val2 == 65, "Int16 addition doesn't work got: " + val2);
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val2 = value - 5;
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Assert.IsTrue(val2 == 55, "Int16 subtraction doesn't work got: " + val2);
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val2 = value * 5;
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Assert.IsTrue(val2 == 300, "Int16 multiplication doesn't work got: " + val2);
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val2 = value / 5;
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Assert.IsTrue(val2 == 12, "Int16 division doesn't work got: " + val2);
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val2 = value % 7;
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Assert.IsTrue(val2 == 4, "Int16 remainder doesn't work got: " + val2);
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// Now test conversions
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short maxValue = Int16.MaxValue;
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short minValue = Int16.MinValue;
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// TODO: some convert instructions aren't being emitted, we should find other ways of getting them emitted
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// Test Conv_I1
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Assert.IsTrue((sbyte)maxValue == -0x01, "Conv_I1 for Int16 doesn't work");
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Assert.IsTrue((sbyte)minValue == 0x00, "Conv_I1 for Int16 doesn't work");
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// Test Conv_U1
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Assert.IsTrue((byte)maxValue == 0xFF, "Conv_U1 for Int16 doesn't work");
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Assert.IsTrue((byte)minValue == 0x00, "Conv_U1 for Int16 doesn't work");
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// Test Conv_I2
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Assert.IsTrue((short)maxValue == 0x7FFF, "Conv_I2 for Int16 doesn't work");
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Assert.IsTrue((short)minValue == -0x8000, "Conv_I2 for Int16 doesn't work");
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// Test Conv_U2
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Assert.IsTrue((ushort)maxValue == 0x7FFF, "Conv_U2 for Int16 doesn't work");
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Assert.IsTrue((ushort)minValue == 0x8000, "Conv_U2 for Int16 doesn't work");
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// Test Conv_I4
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Assert.IsTrue((int)maxValue == 0x00007FFF, "Conv_I4 for Int16 doesn't work");
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Assert.IsTrue((int)minValue == -0x00008000, "Conv_I4 for Int16 doesn't work");
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// Test Conv_U4
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Assert.IsTrue((uint)maxValue == 0x00007FFF, "Conv_U4 for Int16 doesn't work");
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Assert.IsTrue((uint)minValue == 0xFFFF8000, "Conv_U4 for Int16 doesn't work");
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// Test Conv_I8
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Assert.IsTrue((long)maxValue == 0x0000000000007FFF, "Conv_I8 for Int16 doesn't work");
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Assert.IsTrue((long)minValue == -0x0000000000008000, "Conv_I8 for Int16 doesn't work");
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// Test Conv_U8
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Assert.IsTrue((ulong)maxValue == 0x0000000000007FFF, "Conv_U8 for Int16 doesn't work");
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Assert.IsTrue((ulong)minValue == 0xFFFFFFFFFFFF8000, "Conv_U8 for Int16 doesn't work");
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// Test Conv_R4
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Assert.IsTrue((float)maxValue == Int16.MaxValue, "Conv_R4 for Int16 doesn't work");
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Assert.IsTrue((float)minValue == Int16.MinValue, "Conv_R4 for Int16 doesn't work");
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// Test Conv_R8
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Assert.IsTrue((double)maxValue == Int16.MaxValue, "Conv_R8 for Int16 doesn't work");
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Assert.IsTrue((double)minValue == Int16.MinValue, "Conv_R8 for Int16 doesn't work");
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//Test checked conversions
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int val = 1;
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long test = 125;
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// Test Conv_Ovf_I2
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checked
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{
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Assert.IsTrue((short)val == 1, "Conv_Ovf_I2 doesn't work(throws incorrectly)");
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short x = 0;
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bool error = false;
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try
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{
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x = (short)(val + short.MaxValue);
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}
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catch (Exception)
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{
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error = true;
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}
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Assert.IsTrue(error, "Conv_Ovf_I2 doesn't work(error was not thrown): " + x);
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Assert.IsTrue((short)test == 0x7D, "Conv_Ovf_I2 for long to short doesn't work(throws incorrectly)");
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error = false;
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try
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{
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x = (short)(val + 0x8_0000_0000);
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}
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catch (Exception)
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{
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error = true;
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}
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Assert.IsTrue(error, "Conv_Ovf_I2 for from positive long to short doesn't work(error was not thrown): " + x);
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error = false;
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try
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{
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x = (short)(val + -0x8_0000_0001);
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}
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catch (Exception)
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{
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error = true;
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}
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Assert.IsTrue(error, "Conv_Ovf_I2 for from negative long to short doesn't work(error was not thrown): " + x);
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}
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// Test Conv_Ovf_I2_Un
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checked
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{
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Assert.IsTrue((short)(uint)125 == 0x7D, "Conv_Ovf_I2_Un doesn't work(throws incorrectly)");
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short x = 0;
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bool error = false;
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try
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{
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x = (short)(uint)(val + short.MaxValue);
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}
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catch (Exception)
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{
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error = true;
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}
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Assert.IsTrue(error, "Conv_Ovf_I2_Un doesn't work(error was not thrown): " + x);
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}
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// Test Methods
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val2 = TestMethod(value);
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Assert.IsTrue(value == 60, "Passing an Int16 as a method parameter doesn't work");
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Assert.IsTrue(val2 == 61, "Returning an Int16 value from a method doesn't work");
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ByRefTestMethod(ref value);
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Assert.IsTrue(value == 61, "Passing an Int16 by ref to a method doesn't work");
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}
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public static short TestMethod(short aParam)
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{
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aParam++;
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return aParam;
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}
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public static void ByRefTestMethod(ref short aParam)
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{
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aParam++;
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}
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}
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}
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