Add missing tests

.github/workflows/flutter.yaml

@@ -22,11 +22,6 @@ jobs:
       - name: Check formatting
         run: dart format . --set-exit-if-changed
 
-        # example app shows warnings as an example of a working linter, so
-        # we can't analyze it as its purpose is to have issues
-      - name: Disable analyzer for example app
-        run: rm example/analysis_options.yaml
-
       - name: Run default analyzer
         run: flutter analyze
 

example/analysis_options.yaml

@@ -6,7 +6,7 @@ analyzer:
 
 custom_lint:
   rules:
-    - cyclomatic_complexity_metric:
+    - cyclomatic_complexity:
       max_complexity: 4
     - number_of_parameters:
       max_parameters: 2

example/test/cyclomatic_complexity_test.dart

@@ -0,0 +1,15 @@
+// ignore_for_file: literal_only_boolean_expressions
+
+/// Check complexity fail
+///
+/// `cyclomatic_complexity_metric: max_complexity`
+/// expect_lint: cyclomatic_complexity
+void cyclomaticComplexity() {
+  if (true) {
+    if (true) {
+      if (true) {
+        if (true) {}
+      }
+    }
+  }
+}

example/test/number_of_parameters_test.dart

@@ -0,0 +1,7 @@
+/// Check number of parameters fail
+///
+/// `number_of_parameters: max_parameters`
+/// expect_lint: number_of_parameters
+String numberOfParameters(String a, String b, String c) {
+  return a + b + c;
+}