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Added test cases for read and write VarInt, removed VarLong as it is …
…not being used, WriteVarInt now expects int instead of uint (reflected this change within Minecraft.cs).
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,39 +1,105 @@ | ||
| using MCQuery; | ||
| using Microsoft.VisualStudio.TestTools.UnitTesting; | ||
| using System; | ||
| using System.IO; | ||
| using System.Linq; | ||
|
|
||
| namespace MCQueryTests | ||
| { | ||
| [TestClass] | ||
| public class UtilitiesTest | ||
| { | ||
| [TestMethod] | ||
| public void ReadVarIntTest() | ||
| public void WriteVarIntTest() | ||
| { | ||
| byte[] samplePacketLength = new byte[] { 0x81, 0x01 }; // VarInt(129) == 0x81, 0x01 | ||
| byte[] samplePacketId = new byte[] { 0x00 }; // VarInt(0) == 0x00 | ||
| byte[] sampleResponseLength = new byte[] { 0x7F }; // VarInt(127) == 0x7F | ||
|
|
||
| bool cond1, cond2, cond3; | ||
| int[] testCases = new int[9] | ||
| { | ||
| 0, | ||
| 1, | ||
| 2, | ||
| 127, | ||
| 128, | ||
| 255, | ||
| 2147483647, | ||
| -1, | ||
| -2147483648 | ||
| }; | ||
| byte[][] testCasesResults = new byte[9][] | ||
| { | ||
| new byte[] { 0x00 }, // VarInt(0) | ||
| new byte[] { 0x01 }, // VarInt(1) | ||
| new byte[] { 0x02 }, // VarInt(2) | ||
| new byte[] { 0x7F }, // VarInt(127) | ||
| new byte[] { 0x80, 0x01 }, // VarInt(128) | ||
| new byte[] { 0xFF, 0x01 }, // VarInt(255) | ||
| new byte[] { 0xFF, 0xFF, 0xFF, 0xFF, 0x07 }, // VarInt(2147483647) | ||
| new byte[] { 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, }, // VarInt(-1) | ||
| new byte[] { 0x80, 0x80, 0x80, 0x80, 0x08 } // VarInt(-2147483648) | ||
| }; | ||
|
|
||
| using (MemoryStream memory = new MemoryStream(samplePacketLength)) | ||
| using (MemoryStream memory = new MemoryStream()) | ||
| { | ||
| int result = MCQuery.Utilities.ReadVarInt(memory); | ||
| cond1 = result == 129; | ||
| for (int i = 0; i < testCases.Length; ++i) | ||
| { | ||
| memory.SetLength(0); // Reset stream | ||
| Utilities.WriteVarInt(memory, testCases[i]); // Write integer (VarInt) to stream | ||
| byte[] result = memory.ToArray(); | ||
| if (!testCasesResults[i].SequenceEqual(result)) | ||
| Assert.Fail($"Expected {BitConverter.ToString(testCasesResults[i])}, got {BitConverter.ToString(result)}"); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| using (MemoryStream memory = new MemoryStream(samplePacketId)) | ||
| [TestMethod] | ||
| public void ReadVarIntTest() | ||
| { | ||
| byte[][] testCases = new byte[9][] | ||
| { | ||
| int result = MCQuery.Utilities.ReadVarInt(memory); | ||
| cond2 = result == 0; | ||
| } | ||
| new byte[] { 0x00 }, // VarInt(0) | ||
| new byte[] { 0x01 }, // VarInt(1) | ||
| new byte[] { 0x02 }, // VarInt(2) | ||
| new byte[] { 0x7F }, // VarInt(127) | ||
| new byte[] { 0x80, 0x01 }, // VarInt(128) | ||
| new byte[] { 0xFF, 0x01 }, // VarInt(255) | ||
| new byte[] { 0xFF, 0xFF, 0xFF, 0xFF, 0x07 }, // VarInt(2147483647) | ||
| new byte[] { 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, }, // VarInt(-1) | ||
| new byte[] { 0x80, 0x80, 0x80, 0x80, 0x08 } // VarInt(-2147483648) | ||
| }; | ||
| int[] testCasesResults = new int[9] | ||
| { | ||
| 0, | ||
| 1, | ||
| 2, | ||
| 127, | ||
| 128, | ||
| 255, | ||
| 2147483647, | ||
| -1, | ||
| -2147483648 | ||
| }; | ||
|
|
||
| using (MemoryStream memory = new MemoryStream(sampleResponseLength)) | ||
| using (MemoryStream memory = new MemoryStream()) | ||
| { | ||
| int result = MCQuery.Utilities.ReadVarInt(memory); | ||
| cond3 = result == 127; | ||
| for (int i = 0; i < testCases.Length; ++i) | ||
| { | ||
| int result = ReadVarIntHelper(memory, testCases[i]); | ||
| if (result != testCasesResults[i]) | ||
| Assert.Fail($"Expected {testCasesResults[i]}, got {result}."); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| Assert.IsTrue(cond1 && cond2 && cond3); | ||
| private int ReadVarIntHelper(Stream stream, byte[] data) | ||
| { | ||
| StreamHelper(stream, data); // Setup stream for testing | ||
| return Utilities.ReadVarInt(stream); // Get VarInt from stream | ||
| } | ||
|
|
||
| private void StreamHelper(Stream stream, byte[] data) | ||
| { | ||
| stream.SetLength(0); // Reset stream | ||
| stream.Write(data); // Write test bytes | ||
| stream.Seek(0, SeekOrigin.Begin); // Go back to the start for reading | ||
| } | ||
| } | ||
| } |