Files
lmxopcua/tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Calculation.Tests/CalculationDriverProbeTests.cs
T
Joseph Doherty b4a03b4baa fix(calculation): probe JSON options stricter than the real spawn/reinit path (review)
CalculationDriverProbe.Opts (Test-Connect) omitted AllowTrailingCommas and
ReadCommentHandling that CalculationDriverFactoryExtensions.JsonOptions
(spawn) and CalculationDriver.ReinitJsonOptions (in-place ApplyDelta) both
set, so a config blob the real deploy path tolerates could fail Test-Connect
as "invalid JSON" even though deploying it would succeed. Aligned the three
option sets. Also adds CalculationDriverProbeTests.cs, which previously did
not exist at all for this driver type's Test-Connect surface.

Part of code-reviews/Driver.Calculation/findings.md (-003, -004).
2026-08-10 06:59:29 -04:00

73 lines
2.9 KiB
C#

using Shouldly;
using Xunit;
namespace ZB.MOM.WW.OtOpcUa.Driver.Calculation.Tests;
/// <summary>
/// Unit tests for <see cref="CalculationDriverProbe"/> — the Calculation pseudo-driver's Test-Connect
/// probe (parse-only, since there is no backend to reach).
/// </summary>
public sealed class CalculationDriverProbeTests
{
private static readonly CalculationDriverProbe Sut = new();
[Fact]
public async Task Empty_config_json_fails()
{
var result = await Sut.ProbeAsync("", TimeSpan.FromSeconds(1), TestContext.Current.CancellationToken);
result.Ok.ShouldBeFalse();
result.Message.ShouldNotBeNullOrWhiteSpace();
}
[Fact]
public async Task Malformed_json_fails()
{
var result = await Sut.ProbeAsync("not json", TimeSpan.FromSeconds(1), TestContext.Current.CancellationToken);
result.Ok.ShouldBeFalse();
result.Message.ShouldNotBeNullOrWhiteSpace();
}
[Fact]
public async Task A_config_with_no_rawTags_array_is_still_valid()
{
var result = await Sut.ProbeAsync("{}", TimeSpan.FromSeconds(1), TestContext.Current.CancellationToken);
result.Ok.ShouldBeTrue(result.Message);
}
[Fact]
public async Task A_well_formed_rawTags_config_is_valid()
{
const string json = """{"rawTags":[{"rawPath":"calc/e/x","tagConfig":"{}","writeIdempotent":false}]}""";
var result = await Sut.ProbeAsync(json, TimeSpan.FromSeconds(1), TestContext.Current.CancellationToken);
result.Ok.ShouldBeTrue(result.Message);
}
/// <summary>
/// The probe must not be STRICTER than the real spawn/reinit path: both
/// <c>CalculationDriverFactoryExtensions.JsonOptions</c> and <c>CalculationDriver.ReinitJsonOptions</c>
/// set <c>AllowTrailingCommas</c> + <c>ReadCommentHandling.Skip</c>. Before this pin the probe's own
/// options omitted both, so a config a real deploy would accept could fail Test-Connect as "invalid".
/// </summary>
[Fact]
public async Task Tolerates_trailing_commas_like_the_real_spawn_and_reinit_paths()
{
const string json = """{"rawTags":[{"rawPath":"calc/e/x","tagConfig":"{}","writeIdempotent":false},],}""";
var result = await Sut.ProbeAsync(json, TimeSpan.FromSeconds(1), TestContext.Current.CancellationToken);
result.Ok.ShouldBeTrue(result.Message);
}
/// <summary>Same parity claim for comments, which the spawn/reinit path also tolerates.</summary>
[Fact]
public async Task Tolerates_comments_like_the_real_spawn_and_reinit_paths()
{
const string json = """
{
// a hand-edited config comment
"rawTags": []
}
""";
var result = await Sut.ProbeAsync(json, TimeSpan.FromSeconds(1), TestContext.Current.CancellationToken);
result.Ok.ShouldBeTrue(result.Message);
}
}