diff --git a/LeetcodeProblemsTests/Algorithms/medium/K_Closest_Points_to_Origin_Test.js b/LeetcodeProblemsTests/Algorithms/medium/K_Closest_Points_to_Origin_Test.js
index 13f7345..24a6f0e 100644
--- a/LeetcodeProblemsTests/Algorithms/medium/K_Closest_Points_to_Origin_Test.js
+++ b/LeetcodeProblemsTests/Algorithms/medium/K_Closest_Points_to_Origin_Test.js
@@ -4,14 +4,14 @@ var kClosest = require("../../../LeetcodeProblems/Algorithms/medium/K_Closest_Po
 function test1() {
   var points = [[1,3],[-2,2]];
   var output = [[-2,2]];
-  assert.strictEqual(kClosest(points,1), output);
+  assert.deepStrictEqual(kClosest(points,1), output);
 }
 
 function test2() {
   var points = [[3,3],[5,-1],[-2,4]];
   var output = [[-2,4],[3,3]];
 
-  assert.strictEqual(kClosest(points,2), output);
+  assert.deepStrictEqual(kClosest(points,2).sort, output.sort);
 }
 
 function test() {
diff --git a/Test.js b/Test.js
index 2bc826d..f96160f 100644
--- a/Test.js
+++ b/Test.js
@@ -3,57 +3,65 @@
 const fs = require("fs");
 
 const TESTS_FOLDERS = [
-  // "./LeetcodeProblemsTests/Algorithms/easy/",
-  "./LeetcodeProblemsTests/Algorithms/medium/"
-  // "./LeetcodeProblemsTests/Algorithms/hard/"
+  "./LeetcodeProblemsTests/Algorithms/easy/",
+  "./LeetcodeProblemsTests/Algorithms/medium/",
+  "./LeetcodeProblemsTests/Algorithms/hard/"
 ]
 
 const REGEX_PATTERN_HIDDEN_FILES = /(^|\/)\.[^\/\.]/g;
 
 var test_all = async function () {
   try {
-    console.log("problems");
-    const problems = await loadProblemsFiles();
-    // console.log(problems);
-    for (i in problems) {
-      console.log("Solving: " + problems[i]);
-
-      const tests = require(problems[i]);  
-      console.log("*" * 100);
-      if (Object.keys(tests).length == 0) {
-        console.warn("🔴 The problem " + problems[i] + " doesn't have a test method implemented.\n");
-        continue;
-      }
-      for(testIdx in tests) {
-        tests[testIdx]();
-      }
-      console.log("✅ Tests for " + problems[i] + " run successfully \n");
-    }
+    var problems = [];
+    for(const i in TESTS_FOLDERS) {
+      var folder = TESTS_FOLDERS[i];
+      var new_problems = await loadProblemsFiles(folder); // await
+      problems = problems.concat(new_problems);
+    };
+    console.log(problems);
+
+    var solvePromises = problems.map(solve);
+    
+    await Promise.all(solvePromises)
   } catch (error) {
     console.log(error);
     throw new Error(error);
   }
 };
 
-var loadProblemsFiles = () => {
-  return new Promise(function (resolve, reject) {
-    const problems = [];
-    
-    for(i in TESTS_FOLDERS) {
-      folder = TESTS_FOLDERS[i];
-      fs.readdir(folder, (error, files) => {
-        if (error) {
-          console.log("........................................................................");
-          reject(error);
-        } else {
-          console.log(folder);
-          new_problems = files.filter((item) => !REGEX_PATTERN_HIDDEN_FILES.test(item));
-          new_problems = new_problems.map((item) => folder + item);
-          // console.log(new_problems);
-          resolve(new_problems);
-        }
-      });
+var solve = (problem) => {
+  try {
+    console.log("Solving: " + problem);
+
+    const tests = require(problem);  
+    console.log("*" * 100);
+    if (Object.keys(tests).length == 0) {
+      console.warn("🔴 The problem " + problem + " doesn't have a test method implemented.\n");
+      return;
     }
+    for(testIdx in tests) {
+      tests[testIdx]();
+    }
+    console.log("✅ Tests for " + problem + " run successfully \n");
+  } catch (error) {
+    console.log(error);
+    throw new Error(error);
+  }
+}
+
+var loadProblemsFiles = (folder) => {
+  return new Promise(function (resolve, reject) {
+    fs.readdir(folder, (error, files) => {
+      if (error) {
+        reject(error);
+      } else {
+        console.log(folder);
+        new_problems = files.filter((item) => !REGEX_PATTERN_HIDDEN_FILES.test(item));
+        new_problems = new_problems.map((item) => folder + item);
+
+        resolve(new_problems);
+      }
+    });
   });
 };