diff --git a/.travis.yml b/.travis.yml
index 4249139..7566d4c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,8 +3,8 @@ sudo: false
 language: node_js
 
 node_js:
+  - 8
   - 6
-  - 4
 
 cache:
   directories:
@@ -13,3 +13,6 @@ cache:
 install:
   - npm i -g npm@latest
   - npm install
+
+script:
+  - npm test
diff --git a/adm-zip.js b/adm-zip.js
index a55d794..92845be 100644
--- a/adm-zip.js
+++ b/adm-zip.js
@@ -358,7 +358,7 @@ module.exports = function (/*String*/input) {
 
 			var entryName = item.entryName;
 
-			var target = sanitize(targetPath, pth.resolve(targetPath, maintainEntryPath ? entryName : pth.basename(entryName)));
+			var target = sanitize(targetPath, maintainEntryPath ? entryName : pth.basename(entryName));
 
 			if (item.isDirectory) {
 				target = pth.resolve(target, "..");
@@ -369,9 +369,9 @@ module.exports = function (/*String*/input) {
 					if (!content) {
 						throw Utils.Errors.CANT_EXTRACT_FILE;
 					}
-					var childName = sanitize(targetPath, child.entryName);
+					var childName = sanitize(targetPath, maintainEntryPath ? child.entryName : pth.basename(child.entryName));
 
-					Utils.writeFileTo(pth.resolve(targetPath, maintainEntryPath ? childName : childName.substr(entryName.length)), content, overwrite);
+					Utils.writeFileTo(childName, content, overwrite);
 				});
 				return true;
 			}
diff --git a/package.json b/package.json
index af51901..dde3206 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,9 @@
   "name": "adm-zip",
   "version": "0.4.12",
   "description": "Javascript implementation of zip for nodejs with support for electron original-fs. Allows user to create or extract zip files both in memory or to/from disk",
+  "scripts": {
+    "test": "mocha test/mocha.js"
+  },
   "keywords": [
     "zip",
     "methods",
@@ -30,5 +33,10 @@
   },
   "engines": {
     "node": ">=0.3.0"
+  },
+  "devDependencies": {
+    "chai": "^4.1.2",
+    "mocha": "^5.2.0",
+    "rimraf": "^2.6.2"
   }
-}
\ No newline at end of file
+}
diff --git a/test/assets/issue-237-Twizzeld.zip b/test/assets/issue-237-Twizzeld.zip
new file mode 100644
index 0000000..6155645
Binary files /dev/null and b/test/assets/issue-237-Twizzeld.zip differ
diff --git a/test/mocha.js b/test/mocha.js
new file mode 100644
index 0000000..755e620
--- /dev/null
+++ b/test/mocha.js
@@ -0,0 +1,115 @@
+const {expect} = require('chai');
+const Attr = require("../util").FileAttr;
+const Zip = require("../adm-zip");
+const pth = require("path");
+const fs = require("fs");
+const rimraf = require("rimraf")
+
+describe('adm-zip', () => {
+
+    const destination = './test/xxx'
+
+    beforeEach(done => {
+        rimraf(destination, err => {
+            if (err) return done(err)
+            console.log('Cleared directory: ' + destination)
+            return done()
+        })
+    })
+
+    it('zip.extractAllTo()', () => {
+        const zip = new Zip('./test/assets/ultra.zip');
+        zip.extractAllTo(destination);
+        const files = walk(destination)
+
+        expect(files.sort()).to.deep.equal([
+            "./test/xxx/attributes_test/asd/New Text Document.txt",
+            "./test/xxx/attributes_test/blank file.txt",
+            "./test/xxx/attributes_test/New folder/hidden.txt",
+            "./test/xxx/attributes_test/New folder/hidden_readonly.txt",
+            "./test/xxx/attributes_test/New folder/readonly.txt",
+            "./test/xxx/utes_test/New folder/somefile.txt"
+        ].sort());
+    })
+
+    it('zip.extractEntryTo(entry, destination, false, true)', () => {
+        const destination = './test/xxx'
+        const zip = new Zip('./test/assets/ultra.zip');
+        var zipEntries = zip.getEntries();
+        zipEntries.forEach(e => zip.extractEntryTo(e, destination, false, true));
+
+        const files = walk(destination)
+        expect(files.sort()).to.deep.equal([
+            "./test/xxx/blank file.txt",
+            "./test/xxx/hidden.txt",
+            "./test/xxx/hidden_readonly.txt",
+            "./test/xxx/New Text Document.txt",
+            "./test/xxx/readonly.txt",
+            "./test/xxx/somefile.txt"
+        ].sort());
+    })
+
+    it('zip.extractEntryTo(entry, destination, true, true)', () => {
+        const destination = './test/xxx'
+        const zip = new Zip('./test/assets/ultra.zip');
+        var zipEntries = zip.getEntries();
+        zipEntries.forEach(e => zip.extractEntryTo(e, destination, true, true));
+
+        const files = walk(destination)
+        expect(files.sort()).to.deep.equal([
+            "./test/xxx/attributes_test/asd/New Text Document.txt",
+            "./test/xxx/attributes_test/blank file.txt",
+            "./test/xxx/attributes_test/New folder/hidden.txt",
+            "./test/xxx/attributes_test/New folder/hidden_readonly.txt",
+            "./test/xxx/attributes_test/New folder/readonly.txt",
+            "./test/xxx/utes_test/New folder/somefile.txt"
+        ].sort());
+    })
+
+    it('passes issue-237-Twizzeld test case', () => {
+        const zip = new Zip('./test/assets/issue-237-Twizzeld.zip');
+        const zipEntries = zip.getEntries();
+        zipEntries.forEach(function (zipEntry) {
+            if (!zipEntry.isDirectory) {
+                zip.extractEntryTo(zipEntry, './', false, true);
+                // This should create text.txt on the desktop.
+                // It will actually create two, but the first is overwritten by the second.
+            }
+        });
+        let text = fs.readFileSync('./text.txt').toString()
+        expect(text).to.equal('ride em cowboy!')
+        fs.unlinkSync('./text.txt')
+    })
+})
+
+function walk(dir) {
+    let results = [];
+    const list = fs.readdirSync(dir);
+    list.forEach(function (file) {
+        file = dir + '/' + file;
+        const stat = fs.statSync(file);
+        if (stat && stat.isDirectory()) {
+            /* Recurse into a subdirectory */
+            results = results.concat(walk(file));
+        } else {
+            /* Is a file */
+            results.push(file);
+        }
+    });
+    return results;
+}
+
+function walkD(dir) {
+    let results = [];
+    const list = fs.readdirSync(dir);
+    list.forEach(function (file) {
+        file = dir + '/' + file;
+        const stat = fs.statSync(file);
+        if (stat && stat.isDirectory()) {
+            /* Recurse into a subdirectory */
+            results = results.concat(walk(file));
+            results.push(file);
+        }
+    });
+    return results;
+}
\ No newline at end of file