mirror of https://github.com/icedland/iced.git
106 lines
4.5 KiB
C#
106 lines
4.5 KiB
C#
/*
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Copyright (C) 2018-2019 de4dot@gmail.com
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#if !NO_ENCODER
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using System;
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using Iced.Intel;
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using Xunit;
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namespace Iced.UnitTests.Intel.EncoderTests {
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public sealed class BlockEncoderTest_Misc {
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[Fact]
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void Encode_zero_blocks() {
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bool b;
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string errorMessage;
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b = BlockEncoder.TryEncode(16, new InstructionBlock[0], out errorMessage, BlockEncoderOptions.None);
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Assert.True(b);
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Assert.Null(errorMessage);
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b = BlockEncoder.TryEncode(32, new InstructionBlock[0], out errorMessage, BlockEncoderOptions.None);
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Assert.True(b);
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Assert.Null(errorMessage);
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b = BlockEncoder.TryEncode(64, new InstructionBlock[0], out errorMessage, BlockEncoderOptions.None);
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Assert.True(b);
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Assert.Null(errorMessage);
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}
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[Fact]
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void Encode_zero_instructions() {
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bool b;
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string errorMessage;
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var codeWriter = new CodeWriterImpl();
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b = BlockEncoder.TryEncode(16, new InstructionBlock(codeWriter, Array.Empty<Instruction>(), 0, Array.Empty<RelocInfo>(), Array.Empty<uint>(), Array.Empty<ConstantOffsets>()), out errorMessage, BlockEncoderOptions.None);
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Assert.True(b);
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Assert.Null(errorMessage);
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Assert.Empty(codeWriter.ToArray());
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b = BlockEncoder.TryEncode(32, new InstructionBlock(codeWriter, Array.Empty<Instruction>(), 0, Array.Empty<RelocInfo>(), Array.Empty<uint>(), Array.Empty<ConstantOffsets>()), out errorMessage, BlockEncoderOptions.None);
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Assert.True(b);
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Assert.Null(errorMessage);
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Assert.Empty(codeWriter.ToArray());
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b = BlockEncoder.TryEncode(64, new InstructionBlock(codeWriter, Array.Empty<Instruction>(), 0, Array.Empty<RelocInfo>(), Array.Empty<uint>(), Array.Empty<ConstantOffsets>()), out errorMessage, BlockEncoderOptions.None);
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Assert.True(b);
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Assert.Null(errorMessage);
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Assert.Empty(codeWriter.ToArray());
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}
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[Fact]
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void Invalid_NewInstructionOffsets_Throws() {
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Assert.Throws<ArgumentException>(() => BlockEncoder.TryEncode(64, new InstructionBlock(new CodeWriterImpl(), new Instruction[0], 0, Array.Empty<RelocInfo>(), new uint[1], null), out _, BlockEncoderOptions.None));
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Assert.Throws<ArgumentException>(() => BlockEncoder.TryEncode(64, new InstructionBlock(new CodeWriterImpl(), new Instruction[1], 0, Array.Empty<RelocInfo>(), new uint[0], null), out _, BlockEncoderOptions.None));
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}
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[Fact]
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void Invalid_ConstantOffsets_Throws() {
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Assert.Throws<ArgumentException>(() => BlockEncoder.TryEncode(64, new InstructionBlock(new CodeWriterImpl(), new Instruction[0], 0, Array.Empty<RelocInfo>(), null, new ConstantOffsets[1]), out _, BlockEncoderOptions.None));
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Assert.Throws<ArgumentException>(() => BlockEncoder.TryEncode(64, new InstructionBlock(new CodeWriterImpl(), new Instruction[1], 0, Array.Empty<RelocInfo>(), null, new ConstantOffsets[0]), out _, BlockEncoderOptions.None));
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}
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[Fact]
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void DefaultArgs() {
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const int bitness = 64;
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const ulong origRip = 0x123456789ABCDE00;
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const ulong newRip = 0x8000000000000000;
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var originalData = new byte[] {
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/*0000*/ 0xB0, 0x00,// mov al,0
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/*0002*/ 0xEB, 0x09,// jmp short 123456789ABCDE0Dh
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/*0004*/ 0xB0, 0x01,// mov al,1
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/*0006*/ 0xE9, 0x03, 0x00, 0x00, 0x00,// jmp near ptr 123456789ABCDE0Eh
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/*000B*/ 0xB0, 0x02,// mov al,2
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};
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var instructions = BlockEncoderTest.Decode(bitness, origRip, originalData, DecoderOptions.None);
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var codeWriter = new CodeWriterImpl();
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bool b = BlockEncoder.TryEncode(bitness, new InstructionBlock(codeWriter, instructions, newRip), out var errorMessage);
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Assert.True(b);
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Assert.Null(errorMessage);
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Assert.Equal(0x28, codeWriter.ToArray().Length);
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}
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}
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}
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#endif
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