🐐 Reduce clear complete flake

tests/page.js

@@ -94,7 +94,7 @@ module.exports = function Page(browser) {
 	};
 
 	this.tryGetClearCompleteButton = function () {
-		return this.tryFindByXpath(this.getCompletedButtonXpath());
+		return this.findByXpath(this.getCompletedButtonXpath());
 	};
 
 	this.tryGetToggleForItemAtIndex = function (index) {
@@ -226,10 +226,7 @@ module.exports = function Page(browser) {
 	};
 
 	this.clickClearCompleteButton = function () {
-		return this.tryGetClearCompleteButton().then(function (elements) {
-			var button = elements[0];
-			button.click();
-		});
+		return this.tryGetClearCompleteButton().click();
 	};
 
 	this.enterItem = function (itemText) {

tests/testOperations.js

@@ -35,7 +35,7 @@ function TestOperations(page) {
 
 	this.assertClearCompleteButtonIsVisible = function () {
 		page.tryGetClearCompleteButton().then(function (element) {
-			testIsVisible(element, 'clear completed items button');
+			testIsVisible([element], 'clear completed items button');
 		});
 	};
 
@@ -47,12 +47,10 @@ function TestOperations(page) {
 	};
 
 	this.assertClearCompleteButtonText = function (buttonText) {
-		page.tryGetClearCompleteButton().then(function (elements) {
-			var button = elements[0];
-			button.getText().then(function (text) {
+		return page.tryGetClearCompleteButton()
+		.getText().then(function (text) {
 				assert.equal(buttonText, text);
 		});
-		});
 	};
 
 	this.assertMainSectionIsHidden = function () {