feat: ConfigPreflight raw-config aggregator

2026-06-01 09:32:44 -04:00
parent e191893738
commit 8145d79dc6
2 changed files with 124 additions and 0 deletions
@@ -0,0 +1,49 @@
+using Microsoft.Extensions.Configuration;
+using ZB.MOM.WW.Configuration;
+
+namespace ZB.MOM.WW.Configuration.Tests;
+
+public sealed class ConfigPreflightTests
+{
+    private static IConfiguration Config(Dictionary<string, string?> values) =>
+        new ConfigurationBuilder().AddInMemoryCollection(values).Build();
+
+    [Fact]
+    public void Aggregates_all_failures()
+    {
+        var cfg = Config(new() { ["Node:Role"] = "Bogus", ["Node:RemotingPort"] = "0" });
+        var pf = ConfigPreflight.For(cfg)
+            .Require("Node:Role", v => v is "Central" or "Site", "must be 'Central' or 'Site'")
+            .RequirePort("Node:RemotingPort");
+        Assert.False(pf.IsValid);
+        Assert.Equal(2, pf.Failures.Count);
+    }
+
+    [Fact]
+    public void When_runs_block_only_if_condition_true()
+    {
+        var cfg = Config(new() { ["Node:Role"] = "Site" });
+        var pf = ConfigPreflight.For(cfg)
+            .When(cfg["Node:Role"] == "Site",
+                p => p.RequireValue("Node:SiteId"));
+        Assert.False(pf.IsValid);              // SiteId missing
+        Assert.Contains(pf.Failures, f => f.Contains("Node:SiteId"));
+    }
+
+    [Fact]
+    public void ThrowIfInvalid_throws_aggregated_message()
+    {
+        var cfg = Config(new() { ["Node:Name"] = "" });
+        var ex = Assert.Throws<InvalidOperationException>(() =>
+            ConfigPreflight.For(cfg).RequireValue("Node:Name").ThrowIfInvalid());
+        Assert.StartsWith("Configuration validation failed:", ex.Message);
+        Assert.Contains("  - Node:Name", ex.Message);
+    }
+
+    [Fact]
+    public void ThrowIfInvalid_is_noop_when_valid()
+    {
+        var cfg = Config(new() { ["Node:Name"] = "ok" });
+        ConfigPreflight.For(cfg).RequireValue("Node:Name").ThrowIfInvalid();   // does not throw
+    }
+}