Merge #602(S7)/#610.2: S7 connect backoff, write-path worst-state-wins, Volatile health, factory logging, driver-side array writes

Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
2026-10-08 07:01:32 -04:00
parent 6a5e804eca 82372f1672
commit 80ed056d41
12 changed files with 845 additions and 75 deletions
@@ -103,4 +103,44 @@ public sealed class S7TagConfigModelTests
    [InlineData("""{"address":"DB1.DBW0","dataType":7}""")]
    public void Validate_accepts_every_dataType_the_driver_accepts(string json)
        => S7TagConfigModel.FromJson(json).Validate().ShouldBeNull();
+
+    // ---- S7-016: array shape vs the driver's init guards (which fail the WHOLE driver init) ----
+
+    [Theory]
+    [InlineData("Int64")]
+    [InlineData("UInt64")]
+    [InlineData("Float64")]
+    [InlineData("String")]
+    [InlineData("DateTime")]
+    public void Validate_rejects_wide_type_arrays(string dataType)
+    {
+        var m = S7TagConfigModel.FromJson(
+            $$"""{"address":"DB1.DBB0","dataType":"{{dataType}}","isArray":true,"arrayLength":4,"writable":false}""");
+
+        m.Validate().ShouldNotBeNull().ShouldContain("arrays");
+    }
+
+    [Fact]
+    public void Validate_rejects_a_writable_bool_array_but_accepts_it_read_only()
+    {
+        var writable = S7TagConfigModel.FromJson(
+            """{"address":"DB1.DBX0.0","dataType":"Bool","isArray":true,"arrayLength":4}""");
+        writable.Validate().ShouldNotBeNull().ShouldContain("Bool array");
+
+        var readOnly = S7TagConfigModel.FromJson(
+            """{"address":"DB1.DBX0.0","dataType":"Bool","isArray":true,"arrayLength":4,"writable":false}""");
+        readOnly.Validate().ShouldBeNull();
+    }
+
+    [Theory]
+    [InlineData("Byte", "DB1.DBB0")]
+    [InlineData("Int16", "DB1.DBW0")]
+    [InlineData("Float32", "DB1.DBD0")]
+    public void Validate_accepts_writable_arrays_of_supported_element_types(string dataType, string address)
+    {
+        var m = S7TagConfigModel.FromJson(
+            $$"""{"address":"{{address}}","dataType":"{{dataType}}","isArray":true,"arrayLength":4}""");
+
+        m.Validate().ShouldBeNull();
+    }
 }