diff --git a/package.json b/package.json
index 0f75049..c38c2fa 100644
--- a/package.json
+++ b/package.json
@@ -26,12 +26,16 @@
     "clean:declarations": "rm -rf $(find . -maxdepth 2 -type f -name '*.d.ts')",
     "clean": "run-p clean:*",
     "prepublishOnly": "run-s build",
-    "test-cli:custom-detective": "node cli.js test/mock-positive/ -e js:detective-cjs",
-    "test-cli:glob": "node cli.js 'test/mock-positive/**/*.js' --no-default-entries",
-    "test-cli:multi-glob": "node cli.js test/mock-positive/foo.js 'test/mock-positive/*.js' \"test/mock-positive/donkey/*.js\" --no-default-entries",
-    "test-cli:main-as-file": "node cli.js test/mock-positive/index.js",
-    "test-cli:simple": "node cli.js test/mock-positive/",
-    "test-cli": "run-p test-cli:*",
+
+    "test-cli:negative:ts": "node cli.js test/mock-negative/abc.ts 2>&1 >/dev/null | grep \"code: @scope/test1\\|\\.json: example, example2\" | wc -l | grep '2' > /dev/null",
+    "test-cli:negative:simple": "node cli.js test/mock-negative/ 2>&1 >/dev/null | grep \"code: @scope/test1\\|\\.json: example, example2\" | wc -l | grep '2' > /dev/null",
+    "test-cli:positive:custom-detective": "node cli.js test/mock-positive/ -e js:detective-cjs",
+    "test-cli:positive:glob": "node cli.js 'test/mock-positive/**/*.js' --no-default-entries",
+    "test-cli:positive:multi-glob": "node cli.js test/mock-positive/foo.js 'test/mock-positive/*.js' \"test/mock-positive/donkey/*.js\" --no-default-entries",
+    "test-cli:positive:ts": "node cli.js test/mock-positive/abc.ts",
+    "test-cli:positive:main-as-file": "node cli.js test/mock-positive/index.js",
+    "test-cli:positive:simple": "node cli.js test/mock-positive/",
+    "test-cli": "run-p test-cli:**",
     "test": "run-s check test-cli"
   },
   "husky": {
diff --git a/test/mock-negative/abc.ts b/test/mock-negative/abc.ts
new file mode 100644
index 0000000..42a1db1
--- /dev/null
+++ b/test/mock-negative/abc.ts
@@ -0,0 +1,4 @@
+// @ts-ignore
+import example from 'example'
+// @ts-ignore
+import bar from './bar.cjs'
diff --git a/test/mock-negative/bar.cjs b/test/mock-negative/bar.cjs
new file mode 100644
index 0000000..8bf87f1
--- /dev/null
+++ b/test/mock-negative/bar.cjs
@@ -0,0 +1,2 @@
+const example2 = require('example2');
+const async = require('async');
diff --git a/test/mock-negative/foo.js b/test/mock-negative/foo.js
new file mode 100644
index 0000000..8bf87f1
--- /dev/null
+++ b/test/mock-negative/foo.js
@@ -0,0 +1,2 @@
+const example2 = require('example2');
+const async = require('async');
diff --git a/test/mock-negative/index.mjs b/test/mock-negative/index.mjs
new file mode 100644
index 0000000..c4d18f2
--- /dev/null
+++ b/test/mock-negative/index.mjs
@@ -0,0 +1,2 @@
+import example from 'example'
+import foo from './foo.js'
diff --git a/test/mock-negative/package.json b/test/mock-negative/package.json
new file mode 100644
index 0000000..598da68
--- /dev/null
+++ b/test/mock-negative/package.json
@@ -0,0 +1,9 @@
+{
+  "name": "test-negative",
+  "version": "0.0.1",
+  "main": "index.mjs",
+  "dependencies": {
+    "async": "*",
+    "@scope/test1": "*"
+  }
+}
diff --git a/test/mock-positive/abc.ts b/test/mock-positive/abc.ts
new file mode 100644
index 0000000..c7b03d8
--- /dev/null
+++ b/test/mock-positive/abc.ts
@@ -0,0 +1 @@
+import foo from './foo.js'