cf1d9ee857
This commit reimplements the C# API in terms of a Wasmtime linker. It removes the custom binding implementation that was based on reflection in favor of the linker's implementation. This should make the C# API a little closer to the Rust API. The `Engine` and `Store` types have been hidden behind the `Host` type which is responsible for hosting WebAssembly module instances. Documentation and tests have been updated.
82 lines
2.7 KiB
C#
82 lines
2.7 KiB
C#
using System;
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using FluentAssertions;
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using Xunit;
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namespace Wasmtime.Tests
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{
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public class MemoryImportBindingFixture : ModuleFixture
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{
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protected override string ModuleFileName => "MemoryImportBinding.wat";
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}
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public class MemoryImportBindingTests : IClassFixture<MemoryImportBindingFixture>
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{
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public MemoryImportBindingTests(MemoryImportBindingFixture fixture)
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{
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Fixture = fixture;
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Fixture.Host.ClearDefinitions();
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}
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private MemoryImportBindingFixture Fixture { get; set; }
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[Fact]
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public void ItFailsToInstantiateWithMissingImport()
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{
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Action action = () => { using var instance = Fixture.Host.Instantiate(Fixture.Module); };
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action
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.Should()
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.Throw<WasmtimeException>()
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.WithMessage("unknown import: `::mem` has not been defined");
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}
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[Fact]
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public void ItBindsTheGlobalsCorrectly()
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{
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var mem = Fixture.Host.DefineMemory("", "mem");
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using dynamic instance = Fixture.Host.Instantiate(Fixture.Module);
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mem.ReadString(0, 11).Should().Be("Hello World");
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int written = mem.WriteString(0, "WebAssembly Rocks!");
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mem.ReadString(0, written).Should().Be("WebAssembly Rocks!");
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mem.ReadByte(20).Should().Be(1);
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mem.WriteByte(20, 11);
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mem.ReadByte(20).Should().Be(11);
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((byte)instance.ReadByte()).Should().Be(11);
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mem.ReadInt16(21).Should().Be(2);
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mem.WriteInt16(21, 12);
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mem.ReadInt16(21).Should().Be(12);
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((short)instance.ReadInt16()).Should().Be(12);
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mem.ReadInt32(23).Should().Be(3);
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mem.WriteInt32(23, 13);
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mem.ReadInt32(23).Should().Be(13);
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((int)instance.ReadInt32()).Should().Be(13);
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mem.ReadInt64(27).Should().Be(4);
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mem.WriteInt64(27, 14);
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mem.ReadInt64(27).Should().Be(14);
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((long)instance.ReadInt64()).Should().Be(14);
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mem.ReadSingle(35).Should().Be(5);
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mem.WriteSingle(35, 15);
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mem.ReadSingle(35).Should().Be(15);
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((float)instance.ReadFloat32()).Should().Be(15);
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mem.ReadDouble(39).Should().Be(6);
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mem.WriteDouble(39, 16);
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mem.ReadDouble(39).Should().Be(16);
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((double)instance.ReadFloat64()).Should().Be(16);
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mem.ReadIntPtr(48).Should().Be((IntPtr)7);
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mem.WriteIntPtr(48, (IntPtr)17);
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mem.ReadIntPtr(48).Should().Be((IntPtr)17);
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((IntPtr)instance.ReadIntPtr()).Should().Be((IntPtr)17);
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}
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}
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}
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