Add test demonstrating table parsing issue with missing trailing delimiter

Tests/Reqnroll.Specs/Drivers/Parser/ParserDriver.cs

@@ -115,6 +115,28 @@ public void AssertErrors(List<ExpectedError> expectedErrors)
             }
         }
 
+        public void AssertTableHasColumns(params string[] expectedColumns)
+        {
+            ParsedDocument.Should().NotBeNull("The parsing was not successful");
+
+            var scenario = ParsedDocument.ReqnrollFeature.Children.OfType<Scenario>().FirstOrDefault();
+            scenario.Should().NotBeNull("No scenario found in the parsed document");
+
+            var step = scenario.Steps.FirstOrDefault();
+            step.Should().NotBeNull("No step found in the scenario");
+
+            var table = step.Argument as Gherkin.Ast.DataTable;
+            table.Should().NotBeNull("No table argument found in the step");
+
+            var headerRow = table.Rows.FirstOrDefault();
+            headerRow.Should().NotBeNull("Table has no rows");
+
+            var actualColumns = headerRow.Cells.Select(c => c.Value).ToList();
+
+            actualColumns.Should().BeEquivalentTo(expectedColumns, 
+                "the parsed table should have the expected columns");
+        }
+
         public void SaveSerializedFeatureTo(string fileName)
         {
             ParsedDocument.Should().NotBeNull("The parsing was not successful");

Tests/Reqnroll.Specs/Features/Parser/ParsingErrors.feature

@@ -159,3 +159,23 @@ Scenario: Duplicated background
 		| line | error             |
 		| 6    | got 'Background:' |
 
+Scenario: Table without trailing delimiter on any row
+	# This test demonstrates issue #964: when all rows are missing the trailing pipe delimiter,
+	# the parser silently ignores the last column instead of reporting an error.
+	# Expected behavior: should report an error or warning about missing trailing delimiter
+	# Actual behavior: no error is reported, and the last column is silently ignored
+	Given there is a Gherkin file as
+	"""
+		Feature: Table without trailing delimiter
+
+		Scenario: Table without trailing delimiter
+			Given a table
+				| EffectiveDate | InterestRate
+				| 1999-01-01    | 10.00
+	"""
+	When the file is parsed
+	Then no parsing error is reported
+	And the parsed table has only the following columns
+		| column        |
+		| EffectiveDate |
+

Tests/Reqnroll.Specs/StepDefinitions/GherkinParserSteps.cs

@@ -44,5 +44,12 @@ public void ThenTheTheFollowingErrorsAreProvided(List<ExpectedError> expectedErr
         {
             _parserDriver.AssertErrors(expectedErrors);
         }
+
+        [Then(@"the parsed table has only the following columns")]
+        public void ThenTheParsedTableHasOnlyTheFollowingColumns(Table table)
+        {
+            var expectedColumns = table.Rows.Select(r => r["column"]).ToArray();
+            _parserDriver.AssertTableHasColumns(expectedColumns);
+        }
     }
 }