Make the "condition" section mandatory in a rule.

2 files changed, 15 insertions, 2 deletions

diff --git a/src/analysis/scan/grammar.y b/src/analysis/scan/grammar.y
index 19a4257..9c3b08b 100644
--- a/src/analysis/scan/grammar.y
+++ b/src/analysis/scan/grammar.y
@@ -301,8 +301,7 @@ string_decl : IDENTIFIER ASSIGN PLAIN_STRING
             }
             ;
 
-      condition : /* empty */
-                | CONDITION COLON cexpression
+      condition : CONDITION COLON cexpression
                 {
                     g_scan_rule_set_match_condition(*built_rule, $3);
                     g_object_unref(G_OBJECT($3));
diff --git a/tests/analysis/scan/fuzzing.py b/tests/analysis/scan/fuzzing.py
index 64eeb33..0870ed4 100644
--- a/tests/analysis/scan/fuzzing.py
+++ b/tests/analysis/scan/fuzzing.py
@@ -32,3 +32,17 @@ class TestRostFuzzingFixes(ChrysalideTestCase):
             ctx = scanner.analyze(options, content)
 
             self.assertIsNotNone(ctx)
+
+
+    def testMandatoryCondition(self):
+        """Ensure a condition section exists in a rule."""
+
+        rule = '''
+rule test {
+
+}
+'''
+
+        with self.assertRaisesRegex(ValueError, 'Unable to create content scanner'):
+
+            scanner = ContentScanner(rule)