- Testing: Migrate remaining HTML tests to Cypress

cypress/support/assert-almostEquals.js

@@ -0,0 +1,29 @@
+import assertionWrapper from './assertion-wrapper.js';
+
+const NEAR_ZERO = 5e-6; // 0.000005, Firefox fails at higher levels of precision.
+
+/**
+ * Checks that the supplied values are equal with a high though not absolute degree of precision.
+ * @param {Float} actual
+ * @param {Float} expected
+ * @param {string} message
+ * @returns {void}
+ */
+function almostEquals (actual, expected, message) {
+  message = message || (actual + ' did not equal ' + expected);
+  const result = Math.abs(actual - expected) < NEAR_ZERO;
+  return {result, message, actual, expected};
+}
+
+/**
+ * @param {external:chai} _chai
+ * @param {external:chai_utils} utils
+ * @returns {void}
+ */
+function setAssertionMethods (_chai, utils) {
+  const wrap = assertionWrapper(_chai, utils);
+
+  assert.almostEquals = wrap(almostEquals);
+}
+
+export default setAssertionMethods;