53 lines
1.8 KiB
C#
53 lines
1.8 KiB
C#
using System.Text.Json;
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using backend.Tools;
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using FluentAssertions;
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using Xunit;
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namespace backend.tests;
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public class SetVolumeToolTests
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{
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[Fact]
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public async Task Forwards_call_to_pi_and_returns_its_result()
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{
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var fake = new RecordingChannel(
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JsonDocument.Parse("""{"ok":true}""").RootElement);
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var tool = new SetVolumeTool();
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var ctx = new DeviceContext(Guid.NewGuid(), Guid.NewGuid(), fake);
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var args = JsonDocument.Parse("""{"level":42}""").RootElement;
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var res = await tool.ExecuteAsync(new ToolInvocation("c1", args), ctx, default);
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fake.LastName.Should().Be("set_volume");
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fake.LastArgs.GetProperty("level").GetInt32().Should().Be(42);
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res.Output.GetProperty("ok").GetBoolean().Should().BeTrue();
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}
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[Fact]
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public async Task Rejects_out_of_range_level_without_calling_pi()
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{
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var fake = new RecordingChannel(JsonDocument.Parse("""{"ok":true}""").RootElement);
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var tool = new SetVolumeTool();
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var ctx = new DeviceContext(Guid.NewGuid(), Guid.NewGuid(), fake);
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var args = JsonDocument.Parse("""{"level":150}""").RootElement;
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var res = await tool.ExecuteAsync(new ToolInvocation("c1", args), ctx, default);
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fake.LastName.Should().BeNull();
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res.Output.GetProperty("ok").GetBoolean().Should().BeFalse();
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res.Output.GetProperty("error").GetString().Should().Contain("0..100");
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}
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private class RecordingChannel(JsonElement reply) : IDeviceChannel
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{
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public string? LastName { get; private set; }
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public JsonElement LastArgs { get; private set; }
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public Task<JsonElement> CallPiToolAsync(string name, JsonElement args, CancellationToken ct)
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{
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LastName = name;
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LastArgs = args;
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return Task.FromResult(reply);
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}
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}
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}
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