Joseph Doherty
55 lines
1.9 KiB
C#
55 lines
1.9 KiB
C#
namespace ZB.MOM.WW.ScadaBridge.CentralUI.PlaywrightTests.Cluster;
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/// <summary>
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/// One-shot probe for whether the dev cluster (and its MSSQL config store) is
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/// reachable through the CLI. State-changing E2E tests gate their setup on this so
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/// a downed cluster surfaces as a Skipped fact (via <c>Skip.IfNot</c>) rather than
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/// an opaque failure. The result is cached for the process; <see cref="SkippedCount"/>
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/// is bumped each time a test would skip and is logged at suite teardown (Task 3).
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/// </summary>
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public static class ClusterAvailability
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{
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/// <summary>Reason surfaced on skipped facts when the cluster is unavailable.</summary>
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public const string SkipReason =
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"Cluster/MSSQL unavailable — start the docker cluster (bash docker/deploy.sh) to run E2E.";
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private static bool? _cached;
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/// <summary>
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/// Number of times a test would have skipped because the cluster is
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/// unavailable. Incremented on every <see cref="IsAvailableAsync"/> call that
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/// returns <see langword="false"/>; logged at suite teardown (Task 3).
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/// </summary>
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public static int SkippedCount;
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/// <summary>
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/// Returns whether the cluster is reachable, probing once (a <c>site list</c>
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/// round-trip through the CLI) and caching the result for the process.
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/// </summary>
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public static async Task<bool> IsAvailableAsync()
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{
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if (_cached is { } cached)
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{
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if (!cached)
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{
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System.Threading.Interlocked.Increment(ref SkippedCount);
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}
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return cached;
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}
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try
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{
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using var _ = await CliRunner.RunJsonAsync("site", "list");
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_cached = true;
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}
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catch
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{
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_cached = false;
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System.Threading.Interlocked.Increment(ref SkippedCount);
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}
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return _cached.Value;
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}
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}
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