Implemented test framework.

package.json

@@ -18,6 +18,12 @@
   "author": "Kalimuthu Selvaraj",
   "license": "ISC",
   "dependencies": {
-    "async": "^3.2.0"
+    "async": "^3.2.0",
+    "office-to-pdf": "^4.0.0",
+    "pptx2pdf": "^1.0.10"
+  },
+  "devDependencies": {
+    "chai": "^4.2.0",
+    "mocha": "^7.2.0"
   }
 }

sample.js

@@ -1,9 +1,9 @@
-const document = require("../convert");
+const document = require("./convert");
 
 const options = {
   libreofficeBin: "C:\\Program Files\\LibreOffice\\program\\soffice.exe",
   sourceFile: "C:\\convert-pdf-img\\metro_powerpoint.pptx",
-  outputDir: "C:\\convert-pdf-img\\files\\",
+  outputDir: "abc",
   img: true,
   imgExt: "jpg",
   reSize: 800,

test/test.js

@@ -0,0 +1,36 @@
+"use strict";
+var expect = require("chai").expect;
+var doc = require("../convert");
+
+describe("Convert files to pdf or/and image", function () {
+  let options = {
+    libreofficeBin: "C:\\Program Files\\LibreOffice\\program\\soffice.exe",
+    sourceFile: "C:\\convert-pdf-img\\metro_powerpoint.pptx",
+    outputDir: "C:\\convert-pdf-img\\files\\",
+    img: true,
+    imgExt: "jpg",
+    reSize: 800,
+    density: 120,
+  };
+  it("should return source file not exist", function () {
+    options.sourceFile = "C:\\convert-pdf-img\\metro_powerpoint.pptex";
+    var result = doc.convert(options, function (err) {
+      expect(err.message).to.equal("Source file does not exist.");
+    });
+  });
+
+  it("should return invalid extesion", function () {
+    options.sourceFile = "C:\\convert-pdf-img\\sample.txt";
+    var result = doc.convert(options, function (err) {
+      expect(err.message).to.equal("Invalid extension.");
+    });
+  });
+
+  it("should return error on image conversion process", function () {
+    options.sourceFile = "C:\\convert-pdf-img\\metro_powerpoint.pptx";
+    options.outputDir = "abc";
+    var result = doc.convert(options, function (err) {
+      expect(err.message).to.equal("Error on image conversion process.");
+    });
+  });
+});