v4 initial commit

tests/e2e/custom-assertions/custom-assertion.js

@@ -1,2 +0,0 @@
-// empty custom assertion needed for git to keep track of the folder 
-module.exports.assertion = function () {}

tests/e2e/custom-assertions/elementCount.js

@@ -0,0 +1,34 @@
+/**
+ * A custom Nightwatch assertion. The assertion name is the filename.
+ *
+ * Example usage:
+ *   browser.assert.elementCount(selector, count)
+ *
+ * For more information on custom assertions see:
+ *   https://nightwatchjs.org/guide/extending-nightwatch/#writing-custom-assertions
+ *
+ *
+ * @param {string|object} selectorOrObject
+ * @param {number} count
+ */
+
+exports.assertion = function elementCount(selectorOrObject, count) {
+  let selector;
+
+  // when called from a page object element or section
+  if (typeof selectorOrObject === "object" && selectorOrObject.selector) {
+    // eslint-disable-next-line prefer-destructuring
+    selector = selectorOrObject.selector;
+  } else {
+    selector = selectorOrObject;
+  }
+
+  this.message = `Testing if element <${selector}> has count: ${count}`;
+  this.expected = count;
+  this.pass = (val) => val === count;
+  this.value = (res) => res.value;
+  function evaluator(_selector) {
+    return document.querySelectorAll(_selector).length;
+  }
+  this.command = (cb) => this.api.execute(evaluator, [selector], cb);
+};