55 lines
1.8 KiB
C#
55 lines
1.8 KiB
C#
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using System.Text.Json;
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using FluentAssertions;
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using SIGCM2.Api.Json;
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namespace SIGCM2.Api.Tests.Json;
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/// <summary>
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/// UDT-011 T300.30 — Unit tests for DateOnlyJsonConverter.
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/// Verifies round-trip serialization as "yyyy-MM-dd" ISO string.
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/// No DB, no HTTP.
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/// </summary>
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public sealed class DateOnlyJsonConverterTests
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{
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private readonly JsonSerializerOptions _options = new()
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{
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Converters = { new DateOnlyJsonConverter() }
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};
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/// <summary>[REQ-BE-JSON-001] DateOnly serializes as "yyyy-MM-dd" string.</summary>
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[Fact]
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public void Serialize_DateOnly_WritesYyyyMmDdString()
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{
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var date = new DateOnly(2026, 5, 1);
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var json = JsonSerializer.Serialize(date, _options);
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json.Should().Be("\"2026-05-01\"");
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}
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/// <summary>[REQ-BE-JSON-002] "yyyy-MM-dd" string deserializes back to DateOnly.</summary>
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[Fact]
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public void Deserialize_YyyyMmDdString_ReturnsDateOnly()
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{
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var json = "\"2026-05-01\"";
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var date = JsonSerializer.Deserialize<DateOnly>(json, _options);
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date.Should().Be(new DateOnly(2026, 5, 1));
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}
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/// <summary>[REQ-BE-JSON-003] Invalid date format (dd/MM/yyyy) throws on deserialize.</summary>
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[Fact]
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public void Deserialize_InvalidFormat_ThrowsFormatException()
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{
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var json = "\"01/05/2026\""; // formato dd/MM/yyyy — inválido
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var act = () => JsonSerializer.Deserialize<DateOnly>(json, _options);
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act.Should().Throw<FormatException>();
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}
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/// <summary>JSON null is not valid for non-nullable DateOnly — must throw.</summary>
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[Fact]
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public void Deserialize_Null_ThrowsException()
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{
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var json = "null";
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var act = () => JsonSerializer.Deserialize<DateOnly>(json, _options);
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act.Should().Throw<Exception>(); // JsonException desde GetString() null path
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}
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}
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