diff --git a/index.test.js b/index.test.js
index e6076432..7c0cfefd 100644
--- a/index.test.js
+++ b/index.test.js
@@ -3,7 +3,7 @@ const cp = require('child_process');
 const path = require('path');
 const fs = require('fs');
 
-const testHomePath = path.join(__dirname, 'temp');
+const testHomePath = fs.mkdtempSync(".m2");
 const settingsPath = path.join(testHomePath, '.m2', 'settings.xml');
 const indexPath = path.join(__dirname, 'index.js');
 
@@ -19,16 +19,14 @@ afterEach(() => {
     try {
         fs.unlinkSync(settingsPath);
     } catch (error) {
-        console.error(error.message);
     }
 });
 
 afterAll(() => {
     try {
-        fs.rmdirSync(path.join(testHomePath, ".m2"));
+        fs.rmdirSync(path.dirname(settingsPath));
         fs.rmdirSync(testHomePath);
     } catch (error) {
-        console.error(error.message);
     }
 });
 
diff --git a/package.json b/package.json
index 71875689..636ab161 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "main": "index.js",
   "scripts": {
     "lint": "eslint index.js settings.js",
-    "test": "eslint index.js settings.js && jest"
+    "test": "eslint index.js settings.js && jest --coverage"
   },
   "repository": {
     "type": "git",
diff --git a/settings.test.js b/settings.test.js
index 6dde1b5d..a8e89715 100644
--- a/settings.test.js
+++ b/settings.test.js
@@ -1,11 +1,16 @@
 
 const DOMParser = require('xmldom').DOMParser;
 const XMLSerializer = require('xmldom').XMLSerializer;
+const fs = require('fs');
+const path = require('path');
 
 const settings = require('./settings');
 
 var xmlTestProfile = undefined;
 
+const testHomePath = fs.mkdtempSync(".m2");
+const settingsPath = path.join(testHomePath, '.m2', 'settings.xml');
+
 beforeEach(() => {
     xmlTestProfile = new DOMParser().parseFromString(`<settings>
         <profiles>
@@ -27,6 +32,28 @@ beforeEach(() => {
 
 });
 
+afterEach(() => {
+
+    for (key in process.env) {
+        if (key.match(/^INPUT_/)) {
+            delete process.env[key];
+        }
+    }
+
+    try {
+        fs.unlinkSync(settingsPath);
+    } catch (error) {
+    }
+});
+
+afterAll(() => {
+    try {
+        fs.rmdirSync(path.dirname(settingsPath));
+        fs.rmdirSync(testHomePath);
+    } catch (error) {
+    }
+});
+
 test('template should be read', () => {
 
     const template = settings.getSettingsTemplate();
@@ -34,6 +61,19 @@ test('template should be read', () => {
     expect(template).toBeDefined();
 });
 
+test('xml should be write', () => {
+
+    if (!fs.existsSync(testHomePath)) {
+        fs.mkdirSync(testHomePath);
+    }
+
+    settings.writeSettings(settingsPath, xmlTestProfile);
+
+    const settingsStatus = fs.lstatSync(settingsPath);
+    expect(settingsStatus.isFile()).toBeTruthy();
+    expect(settingsStatus.size).toBeGreaterThan(0);
+});
+
 test('fillServers do nothing if no params', () => {
 
     const xml = new DOMParser().parseFromString("<servers/>");
@@ -43,7 +83,6 @@ test('fillServers do nothing if no params', () => {
     const xmlStr = new XMLSerializer().serializeToString(xml);
 
     expect(xmlStr).toBe("<servers/>");
-
 });
 
 test('fillServers one server', () => {
@@ -60,7 +99,6 @@ test('fillServers one server', () => {
     expect(xmlStr).toBe("<servers>" +
         "<server><id>id1</id><username>username1</username><password>password1</password></server>" +
         "</servers>");
-
 });
 
 test('fillServers two servers', () => {
@@ -131,3 +169,27 @@ test('fillProperties', () => {
         </profiles>
     </settings>`);
 })
+
+test('fillProperties do nothing if no params', () => {
+
+    settings.fillProperties(xmlTestProfile);
+
+    const xmlStr = new XMLSerializer().serializeToString(xmlTestProfile);
+    expect(xmlStr).toBe(`<settings>
+        <profiles>
+            <profile>
+                <id>_properties_</id>
+                <activation>
+                    <activeByDefault>false</activeByDefault>
+                </activation>
+                <properties/>
+            </profile>
+            <profile>
+                <id>_sonatype-snapshots_</id>
+                <activation>
+                    <activeByDefault>false</activeByDefault>
+                </activation>
+            </profile>
+        </profiles>
+    </settings>`);
+})