Wrote simple lettuce tests for pdf textbooks

cms/djangoapps/contentstore/features/textbooks.feature

@@ -0,0 +1,20 @@
+Feature: Textbooks
+
+  Scenario: No textbooks
+    Given I have opened a new course in Studio
+    When I go to the textbooks page
+    Then I should see a message telling me to create a new textbook
+
+  Scenario: Create a textbook
+    Given I have opened a new course in Studio
+    And I go to the textbooks page
+    When I click on the New Textbook button
+    And I name my textbook "Economics"
+    And I name the first chapter "Chapter 1"
+    And I click the Upload Asset link for the first chapter
+    And I upload the textbook "textbook.pdf"
+    And I wait for "2" seconds
+    And I save the textbook
+    Then I should see a textbook named "Economics" with a chapter path containing "/c4x/MITx/999/asset/textbook.pdf"
+    And I reload the page
+    Then I should see a textbook named "Economics" with a chapter path containing "/c4x/MITx/999/asset/textbook.pdf"

cms/djangoapps/contentstore/features/textbooks.py

@@ -0,0 +1,70 @@
+#pylint: disable=C0111
+#pylint: disable=W0621
+
+from lettuce import world, step
+from django.conf import settings
+import requests
+import string
+import random
+import os
+
+TEST_ROOT = settings.COMMON_TEST_DATA_ROOT
+HTTP_PREFIX = "http://localhost:8001"
+
+
+@step(u'I go to the textbooks page')
+def go_to_uploads(_step):
+    world.click_course_content()
+    menu_css = 'li.nav-course-courseware-textbooks'
+    world.css_find(menu_css).click()
+
+@step(u'I should see a message telling me to create a new textbook')
+def assert_create_new_textbook_msg(_step):
+    css = ".wrapper-content .no-textbook-content"
+    assert world.is_css_present(css)
+    no_tb = world.css_find(css)
+    assert "You haven't added any textbooks" in no_tb.text
+
+@step(u'I upload the textbook "([^"]*)"$')
+def upload_file(_step, file_name):
+    file_css = '.upload-dialog input[type=file]'
+    upload = world.css_find(file_css)
+    # uploading the file itself
+    path = os.path.join(TEST_ROOT, 'uploads', file_name)
+    upload._element.send_keys(os.path.abspath(path))
+    button_css = ".upload-dialog .action-upload"
+    world.css_click(button_css)
+
+@step(u'I click (on )?the New Textbook button')
+def click_new_textbook(_step, on):
+    button_css = ".nav-actions .new-button"
+    button = world.css_find(button_css)
+    button.click()
+
+@step(u'I name my textbook "([^"]*)"')
+def name_textbook(_step, name):
+    input_css = ".textbook input[name=textbook-name]"
+    world.css_fill(input_css, name)
+
+@step(u'I name the first chapter "([^"]*)"')
+def name_chapter(_step, name):
+    input_css = ".textbook input.chapter-name"
+    world.css_fill(input_css, name)
+
+@step(u'I click the Upload Asset link for the first chapter')
+def click_upload_asset(_step):
+    button_css = ".chapter .action-upload"
+    world.css_click(button_css)
+
+@step(u'I save the textbook')
+def save_textbook(_step):
+    submit_css = "form.edit-textbook button[type=submit]"
+    world.css_click(submit_css)
+
+@step(u'I should see a textbook named "([^"]*)" with a chapter path containing "([^"]*)"')
+def check_textbook(step, textbook_name, chapter_name):
+    title = world.css_find(".textbook h3.textbook-title")
+    chapter = world.css_find(".textbook .wrap-textbook p")
+    assert title.text == textbook_name, "{} != {}".format(title.text, textbook_name)
+    assert chapter.text == chapter_name, "{} != {}".format(chapter.text, chapter_name)
+

cms/djangoapps/contentstore/views/course.py

@@ -511,7 +511,7 @@ def textbook_index(request, org, course, name):
 def create_textbook(request, org, course, name):
     location = get_location_and_verify_access(request, org, course, name)
     store = get_modulestore(location)
-    course_module = store.get_item(location, depth=3)
+    course_module = store.get_item(location, depth=0)
 
     try:
         textbook = validate_textbook_json(request.body)
@@ -520,7 +520,13 @@ def create_textbook(request, org, course, name):
     if not textbook.get("id"):
         tids = set(t["id"] for t in course_module.pdf_textbooks if "id" in t)
         textbook["id"] = assign_textbook_id(textbook, tids)
-    course_module.pdf_textbooks.append(textbook)
+    existing = course_module.pdf_textbooks
+    existing.append(textbook)
+    course_module.pdf_textbooks = existing
+    if not any(tab['type'] == 'pdf_textbooks' for tab in course_module.tabs):
+        tabs = course_module.tabs
+        tabs.append({"type": "pdf_textbooks"})
+        course_module.tabs = tabs
     store.update_metadata(course_module.location, own_metadata(course_module))
     resp = JsonResponse(textbook, status=201)
     resp["Location"] = reverse("textbook_by_id", kwargs={