add isPresent test

test/src/api/commands/web-element/testIsPresent.js

@@ -0,0 +1,45 @@
+const assert = require('assert');
+const {WebElement} = require('selenium-webdriver');
+const MockServer  = require('../../../../lib/mockserver.js');
+const CommandGlobals = require('../../../../lib/globals/commands-w3c.js');
+const common = require('../../../../common.js');
+const Element = common.require('element/index.js');
+
+describe('element().isPresent() command', function() {
+  before(function (done) {
+    CommandGlobals.beforeEach.call(this, done);
+  });
+
+  after(function (done) {
+    CommandGlobals.afterEach.call(this, done);
+  });
+
+  it('test .element().isPresent() present', async function() {
+    const resultPromise = this.client.api.element('#signupSection').isPresent();
+    assert.strictEqual(resultPromise instanceof Element, false);
+    assert.strictEqual(typeof resultPromise.find, 'undefined');
+
+    assert.strictEqual(resultPromise instanceof Promise, false);
+    assert.strictEqual(typeof resultPromise.then, 'function');
+
+    const result = await resultPromise;
+    assert.strictEqual(result instanceof WebElement, false);
+    assert.strictEqual(result, true);
+
+  });
+
+  it('test .element().isPresent() not present', async function() {
+    const resultPromise = this.client.api.element('#wrong').isPresent();
+    assert.strictEqual(resultPromise instanceof Element, false);
+    assert.strictEqual(typeof resultPromise.find, 'undefined');
+
+    assert.strictEqual(resultPromise instanceof Promise, false);
+    assert.strictEqual(typeof resultPromise.then, 'function');
+
+    const result = await resultPromise;
+    assert.strictEqual(result instanceof WebElement, false);
+    assert.strictEqual(result, false);
+
+  });
+
+});