From 71a40a078d38e35b187fa1f9e37057c69eccb5ca Mon Sep 17 00:00:00 2001
From: chris <cdepauw@iconicengine.com>
Date: Mon, 19 Apr 2021 11:35:14 -0700
Subject: [PATCH] throw error if mocked module path not found

---
 README.md           |  2 ++
 package-lock.json   |  4 ++--
 package.json        |  2 +-
 spec/esmock.spec.js | 11 +++++++++++
 src/esmockModule.js |  4 ++++
 5 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 7beba185..798c18cb 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,8 @@ test('should do global instance mocks —third parameter', async t => {
 
 ### changelog
 
+ * 0.3.6 _Apr.19.2021_
+   * throw error if mocked module path is not found
  * 0.3.5 _Apr.18.2021_
    * added gitlab actions npm test: node 12.x, 14.x and 15.x
  * 0.3.3 _Apr.13.2021_
diff --git a/package-lock.json b/package-lock.json
index b25bb71a..a654b27d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,11 +1,11 @@
 {
   "name": "esmock",
-  "version": "0.3.1",
+  "version": "0.3.5",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
-      "version": "0.3.1",
+      "version": "0.3.5",
       "license": "MIT",
       "dependencies": {
         "resolvewithplus": "^0.2.0"
diff --git a/package.json b/package.json
index 8cd8d924..c6741bb7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "esmock",
-  "version": "0.3.5",
+  "version": "0.3.6",
   "license": "MIT",
   "readmeFilename": "README.md",
   "description": "mock esm modules for unit-tests",
diff --git a/spec/esmock.spec.js b/spec/esmock.spec.js
index 2ae4eb2f..e99b5e72 100644
--- a/spec/esmock.spec.js
+++ b/spec/esmock.spec.js
@@ -24,6 +24,17 @@ test('should mock a local file', async t => {
   t.is(main(), 'main string, test string');
 });
 
+test('should throw error if local file not found', async t => {
+  await t.throwsAsync(() => esmock('./local/not/found.js', {
+    './local/mainUtil.js' : {
+      createString : () => 'test string'
+    }
+  }), {
+    message : 'modulePath not found: "./local/not/found.js"'
+  });
+});
+
+
 test('should mock a module', async t => {
   const main = await esmock('./local/mainUtil.js', {
     'form-urlencoded' : () => 'mock encode'
diff --git a/src/esmockModule.js b/src/esmockModule.js
index 436b3917..7dcfd302 100644
--- a/src/esmockModule.js
+++ b/src/esmockModule.js
@@ -145,6 +145,10 @@ const esmockModuleMock = async (calleePath, modulePath, defs, gdefs, opt) => {
   const esmockGlobalKeys = await esmockModulesCreate(
     calleePath, pathModuleFull, esmockKey, gdefs, Object.keys(gdefs));
 
+  if (pathModuleFull === null) {
+    throw new Error(`modulePath not found: "${modulePath}"`);
+  }
+    
   const esmockCacheKey = `file://${pathModuleFull}?`
     + 'key=:esmockKey?esmockGlobals=:esmockGlobals#esmockModuleKeys=:moduleKeys'
       .replace(/:esmockKey/, esmockKey)