Auto: ablegacy-7 — array contiguous block addressing

Closes #250

scripts/e2e/test-ablegacy.ps1

@@ -95,5 +95,22 @@ $results += Test-SubscribeSeesChange `
     -DriverWriteArgs (@("write") + $commonAbLegacy + @("-a", $Address, "-t", "Int", "-v", $subValue)) `
     -ExpectedValue "$subValue"
 
+# PR 7 — contiguous array read smoke. The default `--tag=N7[120]` in the Docker
+# fixture's docker-compose.yml has plenty of room for `,10`; against real hardware
+# the seeded N7 file just needs at least 10 words. Asserts the CLI exits 0 (the
+# driver issued one PCCC frame for the whole block) — the per-element values are
+# whatever the device currently holds.
+Write-Header "Array contiguous read"
+$arrayResult = Invoke-Cli -Cli $abLegacyCli `
+    -Args (@("read") + $commonAbLegacy + @("-a", "N7:0,10", "-t", "Int"))
+if ($arrayResult.ExitCode -eq 0) {
+    Write-Pass "array read N7:0,10 succeeded"
+    $results += @{ Passed = $true }
+} else {
+    Write-Fail "array read N7:0,10 exit=$($arrayResult.ExitCode)"
+    Write-Host $arrayResult.Output
+    $results += @{ Passed = $false; Reason = "array read exit $($arrayResult.ExitCode)" }
+}
+
 Write-Summary -Title "AB Legacy e2e" -Results $results
 if ($results | Where-Object { -not $_.Passed }) { exit 1 }

scripts/smoke/seed-ablegacy-smoke.sql

@@ -31,10 +31,11 @@ DECLARE @LineId    nvarchar(64) = 'ablegacy-smoke-line';
 DECLARE @EqId      nvarchar(64) = 'ablegacy-smoke-eq';
 DECLARE @EqUuid    uniqueidentifier = '5A1D2030-5A1D-4203-A5A1-D20305A1D203';
 DECLARE @TagId     nvarchar(64) = 'ablegacy-smoke-tag-n7_5';
+DECLARE @ArrTagId  nvarchar(64) = 'ablegacy-smoke-tag-n7_block';
 
 BEGIN TRAN;
 
-DELETE FROM dbo.Tag                        WHERE TagId IN (@TagId);
+DELETE FROM dbo.Tag                        WHERE TagId IN (@TagId, @ArrTagId);
 DELETE FROM dbo.Equipment                  WHERE EquipmentId = @EqId;
 DELETE FROM dbo.UnsLine                    WHERE UnsLineId = @LineId;
 DELETE FROM dbo.UnsArea                    WHERE UnsAreaId = @AreaId;
@@ -99,6 +100,14 @@ VALUES (@Gen, @DrvId, @ClusterId, @NsId, 'ablegacy-smoke', 'AbLegacy', N'{
       "DataType": "Int",
       "Writable": true,
       "WriteIdempotent": true
+    },
+    {
+      "Name": "N7_Block",
+      "DeviceHostAddress": "ab://127.0.0.1:44818/1,0",
+      "Address": "N7:0,10",
+      "DataType": "Int",
+      "Writable": false,
+      "ArrayLength": 10
     }
   ]
 }', 1);
@@ -108,6 +117,17 @@ INSERT dbo.Tag(GenerationId, TagId, DriverInstanceId, EquipmentId, Name, DataTyp
 VALUES (@Gen, @TagId, @DrvId, @EqId, 'N7_5', 'Int16', 'ReadWrite',
         N'{"FullName":"N7_5","Address":"N7:5","DataType":"Int"}', 1);
 
+-- PR 7 — array contiguous-block tag. The TagConfig JSON carries the address suffix
+-- + ArrayLength override; the driver picks both up at discovery time and emits the
+-- DriverAttributeInfo with IsArray=true + ArrayDim=10 so the generic node manager
+-- materialises a 1-D Int16 array variable. The dbo.Tag schema doesn't carry
+-- IsArray/ArrayDim columns — the array shape is fully driver-side metadata.
+-- Read-only because the smoke harness only exercises array reads.
+INSERT dbo.Tag(GenerationId, TagId, DriverInstanceId, EquipmentId, Name, DataType,
+               AccessLevel, TagConfig, WriteIdempotent)
+VALUES (@Gen, @ArrTagId, @DrvId, @EqId, 'N7_Block', 'Int16', 'Read',
+        N'{"FullName":"N7_Block","Address":"N7:0,10","DataType":"Int","ArrayLength":10}', 0);
+
 EXEC dbo.sp_PublishGeneration @ClusterId = @ClusterId, @DraftGenerationId = @Gen,
                               @Notes = N'AB Legacy smoke — task #213';