ScadaBridge/tests/ZB.MOM.WW.ScadaBridge.DelmiaNotifier.Tests/ConfigLoaderTests.cs

using ZB.MOM.WW.ScadaBridge.DelmiaNotifier;

namespace ZB.MOM.WW.ScadaBridge.DelmiaNotifier.Tests;

public class ConfigLoaderTests
{
    [Fact]
    public void SplitBaseUrls_trims_and_drops_empties()
    {
        var urls = ConfigLoader.SplitBaseUrls("a, b ,,c");
        Assert.Equal(new[] { "a", "b", "c" }, urls);
    }

    [Fact]
    public void SplitBaseUrls_null_or_whitespace_returns_empty()
    {
        Assert.Empty(ConfigLoader.SplitBaseUrls(null));
        Assert.Empty(ConfigLoader.SplitBaseUrls("   "));
    }

    [Fact]
    public void Load_defaults_timeout_to_30_when_omitted()
    {
        var cfg = ConfigLoader.Load("{\"ScadaBridge\":{\"BaseUrls\":\"http://x\"}}");
        Assert.Equal(30, cfg.ScadaBridge.TimeoutSeconds);
        Assert.Equal("http://x", cfg.ScadaBridge.BaseUrls);
    }

    [Fact]
    public void Load_reads_all_fields()
    {
        var cfg = ConfigLoader.Load("{\"ScadaBridge\":{\"BaseUrls\":\"a,b\",\"TimeoutSeconds\":5,\"LogPath\":\"l.log\"}}");
        Assert.Equal("a,b", cfg.ScadaBridge.BaseUrls);
        Assert.Equal(5, cfg.ScadaBridge.TimeoutSeconds);
        Assert.Equal("l.log", cfg.ScadaBridge.LogPath);
    }

    [Fact]
    public void ResolveApiKey_returns_null_when_unset_or_whitespace()
    {
        Assert.Null(ConfigLoader.ResolveApiKey(_ => null));
        Assert.Null(ConfigLoader.ResolveApiKey(_ => "   "));
    }

    [Fact]
    public void ResolveApiKey_returns_value_when_present()
    {
        Assert.Equal("sbk_x", ConfigLoader.ResolveApiKey(n => n == "SCADABRIDGE_API_KEY" ? "sbk_x" : null));
    }
}