diff --git a/test/probes/isUnaryExpression.spec.js b/test/probes/isUnaryExpression.spec.js
new file mode 100644
index 00000000..a386cd03
--- /dev/null
+++ b/test/probes/isUnaryExpression.spec.js
@@ -0,0 +1,28 @@
+// Import Third-party dependencies
+import test from "tape";
+
+// Import Internal Dependencies
+import { getSastAnalysis, parseScript } from "../utils/index.js";
+import isUnaryExpression from "../../src/probes/isUnaryExpression.js";
+
+test("should detect one UnaryArray", (tape) => {
+  const str = "!![]";
+  const ast = parseScript(str);
+  const { analysis } = getSastAnalysis(str, isUnaryExpression)
+    .execute(ast.body);
+
+  tape.strictEqual(analysis.counter.doubleUnaryArray, 1);
+
+  tape.end();
+});
+
+test("should not detect any UnaryArray", (tape) => {
+  const str = "![]";
+  const ast = parseScript(str);
+  const { analysis } = getSastAnalysis(str, isUnaryExpression)
+    .execute(ast.body);
+
+  tape.strictEqual(analysis.counter.doubleUnaryArray, 0);
+
+  tape.end();
+});