using StellaOps.TestKit;
using Xunit;

namespace StellaOps.Canonical.Json.Tests;

public partial class CanonVersionTests
{
    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public void IsVersioned_VersionedJson_ReturnsTrue()
    {
        var json = """{"_canonVersion":"stella:canon:v1","foo":"bar"}"""u8;
        Assert.True(CanonVersion.IsVersioned(json));
    }

    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public void IsVersioned_LegacyJson_ReturnsFalse()
    {
        var json = """{"foo":"bar"}"""u8;
        Assert.False(CanonVersion.IsVersioned(json));
    }

    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public void IsVersioned_EmptyJson_ReturnsFalse()
    {
        var json = "{}"u8;
        Assert.False(CanonVersion.IsVersioned(json));
    }

    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public void IsVersioned_TooShort_ReturnsFalse()
    {
        var json = """{"_ca":"v"}"""u8;
        Assert.False(CanonVersion.IsVersioned(json));
    }

    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public void IsVersioned_WrongFieldName_ReturnsFalse()
    {
        var json = """{"_version":"stella:canon:v1","foo":"bar"}"""u8;
        Assert.False(CanonVersion.IsVersioned(json));
    }
}