Wip - fix(app): add error stack trace

examples/tests/ecosia.js

@@ -5,15 +5,17 @@ describe('Ecosia.org Demo', function() {
       .navigateTo('https://www.ecosia.org/');
   });
 
-  it('Demo test ecosia.org', function(browser) {
-    browser
-      .waitForElementVisible('body')
-      .assert.titleContains('Ecosia')
-      .assert.visible('input[type=search]')
-      .setValue('input[type=search]', 'nightwatch')
-      .assert.visible('button[type=submit]')
-      .click('button[type=submit]')
-      .assert.textContains('.layout__content', 'Nightwatch.js');
+  it('Demo test ecosia.org', async function(browser) {
+    // browser
+    //   .waitForElementVisible('body')
+    //   .assert.titleContains('Ecosia')
+    //   .assert.visible('input[type=search]')
+    //   .setValue('input[type=search]', 'nightwatch')
+    //   .assert.visible('button[type=submit]')
+    //   .click('button[type=submit]')
+    //   .assert.textContains('.layout__content', 'Nightwatch.js');
+
+    await browser.element.find('.invalid_selector');
   });
 
   after(browser => browser.end());

lib/api/web-element/scoped-element.js

@@ -96,13 +96,13 @@ class ScopedWebElement {
   }
 
   async locateElements({parentElement, selector, timeout, retryInterval}) {
+    process.stderr.write(`\n\nexecuting locateElements\n\nparentElement && parentElement.webElement:${parentElement && parentElement.webElement}\n`);
+
     const createLocateElement = () => {
       return parentElement && parentElement.webElement ? function(locator) {
         return new Condition('for at least one element to be located ' + locator, function (driver) {
           return parentElement.webElement
             .then(function (webElement) {
-              // also takes into consideration if `webElement`
-              // resolves to a shadow root.
               return webElement.findElements(locator);
             })
             .then(function (elements) {
@@ -113,9 +113,21 @@ class ScopedWebElement {
     };
 
     const locateFn = createLocateElement();
-    const webElements = await this.driver.wait(locateFn(selector), timeout, null, retryInterval);
 
-    return webElements;
+    try {
+      // Capture the error at its source
+      const webElements = await this.driver.wait(locateFn(selector), timeout, null, retryInterval);
+
+      return webElements;
+    } catch (error) {
+      // Add our context to the error
+      // Error.captureStackTrace(error);
+
+      // Log the complete error stack at this point
+      process.stderr.write(`\n\nError in locateElements:\n${error.stack}\n\n`);
+
+      throw error; // Re-throw to maintain the chain
+    }
   }
 
   async findElementUsingRecursion({parentElement, recursiveElement, timeout, retryInterval}) {
@@ -142,6 +154,7 @@ class ScopedWebElement {
   }
 
   async findElement({parentElement, selector, index, timeout, retryInterval}) {
+    process.stderr.write('\n\nexecuting findElement\n\n');
     const webElements = await this.locateElements({parentElement, selector, timeout, retryInterval});
 
     if (webElements.length === 0) {
@@ -173,6 +186,7 @@ class ScopedWebElement {
         return null;
       }
 
+      process.stderr.write(`parentElement: ${JSON.stringify(parentElement)}\ncondition: ${condition.usingRecursion}\n`);
       try {
         if (condition.usingRecursion) {
           return await this.findElementUsingRecursion({parentElement, recursiveElement: condition, timeout, retryInterval});
@@ -350,11 +364,13 @@ class ScopedWebElement {
     return this.webElement.then(onFulfilled, onRejected);
   }
 }
-
 function createNarrowedError({error, condition, timeout}) {
   if (error.name === 'TimeoutError') {
     const err = new Error(`Timed out while waiting for element "${condition}" to be present for ${timeout} milliseconds.`);
     err.name = 'NoSuchElementError';
+    process.stderr.write(`error.stack: ${error.stack}\n\n\n\n\nhijk\n\n`);
+    process.stderr.write(`err.stack: ${err.stack}\n\n\n\n\nlmno\n\n`);
+    err.stack = error.stack;
 
     return err;
   }