using SharepointToolbox.Core.Helpers;

namespace SharepointToolbox.Tests.Helpers;

[Trait("Category", "Unit")]
public class ExecuteQueryRetryHelperTests
{
    [Theory]
    [InlineData("The request has been throttled -- 429")]
    [InlineData("Service unavailable 503")]
    [InlineData("SharePoint has throttled your request")]
    public void IsThrottleException_ThrottleMessages_ReturnsTrue(string message)
    {
        var ex = new Exception(message);
        Assert.True(ExecuteQueryRetryHelper.IsThrottleException(ex));
    }

    [Fact]
    public void IsThrottleException_NonThrottleMessage_ReturnsFalse()
    {
        var ex = new Exception("File not found");
        Assert.False(ExecuteQueryRetryHelper.IsThrottleException(ex));
    }

    [Fact]
    public void IsThrottleException_NestedThrottleInInnerException_ReturnsFalse()
    {
        // Documents current behavior: only top-level Message is checked.
        // Inner exceptions with "429" are NOT currently detected.
        var ex = new Exception("outer", new Exception("429"));
        Assert.False(ExecuteQueryRetryHelper.IsThrottleException(ex));
    }
}