Finalized OneLinkList. Improved the testing environment (functional).

Author: HerrPeter

JS Data Structures/Data Structs/OneLinkList.js

@@ -74,10 +74,12 @@ OneLinkList.prototype.AddToEnd = function(data) {
  */
 OneLinkList.prototype.FindAt = function(position) {
     // Show error when trying to access position outside of list.
-    if(this.count === 0 || position > this.count || position < 1) {
-        throw new Err.DSException(Err.ListErr.NonExistant(OneLinkList.name), 101);
+    if(this.count === 0) {
+        throw new Err.DSException(Err.ListErr.EmptyList, 100);
     } else if(position % 1 != 0 || typeof position != Number.name.toLowerCase()) {
         throw new Err.DSException(Err.ListErr.InvalidPosition(), 102);
+    } else if(position > this.count || position < 1) {
+        throw new Err.DSException(Err.ListErr.NonExistant(OneLinkList.name), 101);
     }
 
     // Sequentially search for item (1 -> last).
@@ -262,11 +264,6 @@ OneLinkList.prototype.PrintAll = function() {
 }
 
 /**
- * All linked list exports.
+ * All single linked list exports.
  */
-module.exports = OneLinkList;
-
-// Use below if exporting multiple items.
-// module.exports = {
-//     OneLinkList: OneLinkList,
-// }
+module.exports = OneLinkList;

JS Data Structures/app.js

@@ -1,29 +1,13 @@
 // app.js : Main entry point for the app.
 const OneLinkList = require('./Data Structs/OneLinkList');
-const OneListTest = require('../tests/OneTest');
 const TwoLinkList = require('./Data Structs/TwoLinkList');
+const test_OneList = require('./tests/Test_OneLinkList');
 
-// OneLinkList empty param test.
-if(OneListTest.EmptyParamTest(OneListTest.EmptyFinal)) {
-    console.log('OneLinkList Empty Param test PASS.');
-} else {
-    console.log('OneLinkList Empty Param test FAIL.');
-}
-// OneLinkList contains test.
-if(OneListTest.ContainsTest()) {
-    console.log('OneLinkList Contains test PASS.');
-} else {
-    console.log('OneLinkList Contains test PASS.');
-}
-// OneLinkList AddRemove test.
-if(OneListTest.AddRemoveTest()) {
-    console.log('OneLinkList AddRemove test PASS.');
-} else {
-    console.log('OneLinkList AddRemove test FAIL.');
-}
+// -- Test the OneLinkList --
+test_OneList.OverallOneLinkTest(true);
 
 
-// TwoLinkList
+// -- TwoLinkList --
 // var users2 = new TwoLinkList('one');
 // users2.AddToEnd('two');
 // users2.AddToEnd('three');

JS Data Structures/misc/Errors.js

@@ -1,5 +1,19 @@
-// Errors.js - Contains all error messages the js data structures will use.
+// Errors.js : Contains all error messages the js data structures will use.
 
+/**
+ * Data Structure error class.
+ */
+class DSException {
+    /**
+     * Creates a new data structure exception.
+     * @param {String} message - Details why the error occured.
+     * @param {Number} errCode - Numeric code to represent this error.
+     */
+    constructor(message, errCode) {
+        this.message = message;
+        this.code = errCode;
+    }
+}
 /**
  * Errors that may occur in lists.
  */
@@ -15,22 +29,8 @@ const ListErr = {
     },
     InvalidData: function() {
         return `No valid data was passed as an argument.`;
-    }
-}
-
-/**
- * Data Structure error class.
- */
-class DSException {
-    /**
-     * Creates a new data structure exception.
-     * @param {String} message - Details why the error occured.
-     * @param {Number} errCode - Numeric code to represent this error.
-     */
-    constructor(message, errCode) {
-        this.message = message;
-        this.code = errCode;
-    }
+    },
+    EmptyList: `The linked list is empty.`,
 }
 
 module.exports = {