per spec, string comparisons should be case insensitive

.npmignore

@@ -0,0 +1 @@
+.composer

src/Evaluator/NodeEvaluator/LogicNodeEvaluator.ts

@@ -71,6 +71,7 @@ export class LogicNodeEvaluator implements NodeEvaluator {
       if (item === '') {
         return null
       }
+      item = item.toLowerCase()
     }
     return item
   }

tests/Evaluator/EvaluatorIntegration.test.ts

@@ -593,3 +593,9 @@ it('should evaluate if with empty string value', () => {
 
   expect(evaluator.evaluate(expr, {})).toEqual('')
 })
+
+it('should evaluate unwrapped methods', () => {
+  const expr = "@IF(false, 'foobar', 'foo')"
+
+  expect(evaluator.evaluate(expr, {})).toEqual('foo')
+})

tests/Evaluator/NodeEvaluator/LogicNodeEvaluator.test.ts

@@ -48,6 +48,10 @@ const logicProvider: Array<[Node, boolean]> = [
     makeNode(2, 2, '<>'),
     false
   ],
+  [
+    makeNode('foo', 'FOO', '='),
+    true
+  ]
 
 ]