79 lines
2.9 KiB
C#
79 lines
2.9 KiB
C#
using System.Net;
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using System.Net.Http;
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using System.Text;
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using Microsoft.Extensions.Caching.Memory;
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using Moq;
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using Xunit;
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using JobTrackerApi.Services;
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namespace JobTrackerApi.Tests;
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public sealed class SummarizerServiceTests
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{
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[Fact]
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public async Task Summarize_section_uses_cv_rewrite_endpoint()
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{
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var handler = new CapturingHandler();
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var httpClient = new HttpClient(handler)
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{
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BaseAddress = new Uri("http://localhost:8001")
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};
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var httpFactory = new Mock<IHttpClientFactory>();
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httpFactory.Setup(x => x.CreateClient("ai-service")).Returns(httpClient);
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using var memoryCache = new MemoryCache(new MemoryCacheOptions());
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var service = new SummarizerService(httpFactory.Object, memoryCache);
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var result = await service.SummarizeSectionAsync("Rewrite this CV", "Professional Summary\nBuilt backend systems.", 1800, 400);
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Assert.Equal("rewritten cv", result);
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Assert.Equal("/cv/rewrite", handler.LastPath);
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Assert.NotNull(handler.LastBody);
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Assert.Contains("\"instruction\":\"Rewrite this CV\"", handler.LastBody);
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Assert.Contains("\"max_length\":256", handler.LastBody);
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Assert.Contains("\"min_length\":180", handler.LastBody);
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}
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[Fact]
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public async Task Summarize_section_clamps_lengths_to_ai_service_limits()
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{
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var handler = new CapturingHandler();
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var httpClient = new HttpClient(handler)
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{
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BaseAddress = new Uri("http://localhost:8001")
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};
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var httpFactory = new Mock<IHttpClientFactory>();
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httpFactory.Setup(x => x.CreateClient("ai-service")).Returns(httpClient);
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using var memoryCache = new MemoryCache(new MemoryCacheOptions());
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var service = new SummarizerService(httpFactory.Object, memoryCache);
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await service.SummarizeSectionAsync("Rewrite this CV", "Professional Summary\nBuilt backend systems.", 1800, 400);
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Assert.NotNull(handler.LastBody);
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Assert.Contains("\"max_length\":256", handler.LastBody);
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Assert.Contains("\"min_length\":180", handler.LastBody);
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}
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private sealed class CapturingHandler : HttpMessageHandler
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{
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public string? LastBody { get; private set; }
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public string? LastPath { get; private set; }
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protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
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{
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LastPath = request.RequestUri?.AbsolutePath;
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LastBody = request.Content is null ? null : await request.Content.ReadAsStringAsync(cancellationToken);
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var responseBody = LastPath == "/cv/rewrite"
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? "{\"rewritten_text\":\"rewritten cv\"}"
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: "{\"summary\":\"ok\"}";
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return new HttpResponseMessage(HttpStatusCode.OK)
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{
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Content = new StringContent(responseBody, Encoding.UTF8, "application/json")
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};
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}
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}
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}
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