add test_sort_by.py (and theme_compare.py and add function to

database.py)

test/database.py

@@ -40,6 +40,18 @@ def get_themes_orderedby_cname():
         Hugothemes).order_by(asc(func.lower(Hugothemes.cname))).all()
 
 
+def get_themes_as_dicts_of_sortable_columns():
+    session = sessionmaker(bind=engine)()
+    return [
+        {
+            'name': x.cname,
+            'date': x.commit_date[0:10],
+            'stars': str(x.stargazers_count),
+            'min_ver': '' if x.min_ver is None else x.min_ver,
+            'license': x.theme_license,
+        } for x in session.query(Hugothemes).all()]
+
+
 def get_themes():
     session = sessionmaker(bind=engine)()
     return session.query(Hugothemes).all()

test/test_sort_by.py

@@ -0,0 +1,85 @@
+from test.test_selenium import TestSelenium
+from unittest import TestCase
+from test.database import get_themes_as_dicts_of_sortable_columns
+from itertools import permutations
+from test.theme_compare import theme_compare
+from functools import cmp_to_key
+from bs4 import BeautifulSoup
+
+SBB = [
+    'sortByDate',
+    'sortByStars',
+    'sortByName',
+    'sortByMinVer',
+    'sortByLicense',
+]  # SBB -> sort_by_buttons
+
+
+class TestsSortBy(TestSelenium, TestCase):
+    def setUp(self):
+        super(TestsSortBy, self).setUp()
+        for x in [
+                'plus-button',
+                'button-for-showing-columns',
+                'commit-column-selection-input',
+                'min_ver-column-selection-input',
+                'license-column-selection-input',
+                'button-for-showing-sort-option',
+        ]:
+            self.driver.find_element_by_id(x).click()
+        self.themes = get_themes_as_dicts_of_sortable_columns()
+        self.tc = len(self.themes)
+
+    def test_sort_by(self):
+        for y in permutations(SBB):
+            '''
+            every time you click a sort_by radio button
+            that button moves to the far left
+            and then the table rows are re-sorted cumulatively
+            '''
+
+            '''
+            so first click all the sort_by radio buttons in the
+            reverse order of the current permutation
+            '''
+            for x in y[::-1]:
+                self.driver.find_element_by_id(x).click()
+
+            sort_by_inputs = [x.get_attribute(
+                'id') for x in self.driver.find_element_by_id(
+                'sortByRow').find_elements_by_tag_name('input')]
+            '''
+            and then assert that the sort_by button row is now
+            in the same order left->right, as the current
+            permutation
+            '''
+            self.assertEqual(sort_by_inputs, list(y))
+
+            '''
+            then sort the list of themes we pulled from the database
+            '''
+            self.themes.sort(
+                key=cmp_to_key(lambda a, b: theme_compare(a, b, y)))
+
+            results_table_div = self.driver.find_element_by_id('results')
+            rows = BeautifulSoup(results_table_div.get_attribute(
+                'innerHTML'), features='lxml').find('table').findAll('tr')
+
+            '''
+            and finally compare the list of themes to the contents of
+            the html table in order...PHEW!
+            '''
+            for i, row in enumerate(rows[1:]):
+                tds = row.findAll('td')
+                tds_txt = [x.text for x in tds]
+
+                self.assertEqual(
+                    tds_txt,
+                    [
+                        self.themes[i]['name'],
+                        self.themes[i]['date'],
+                        self.themes[i]['stars'],
+                        self.themes[i]['min_ver'],
+                        self.themes[i]['license'],
+                    ],
+                )

test/theme_compare.py

@@ -0,0 +1,43 @@
+import re
+MATCH = re.compile(r'\d+')
+
+
+def compare_jk(j, k):
+    if j == k: return 0
+    else: return 1 if j < k else -1
+
+
+def semver_split(item):
+    split_list = [MATCH.search(i).group() if
+                  len(item) > 0 else '0' for i in item.split('.')]
+    if len(split_list) == 1: split_list.append('0')
+    if len(split_list) == 2: split_list.append('0')
+    return [int(x) for x in split_list]
+
+
+def compare_theme(x, y, sort_key):
+    if sort_key == 'sortByName':
+        return compare_jk(y['name'].lower(), x['name'].lower())
+
+    elif sort_key == 'sortByStars':
+        return compare_jk(int(x['stars']), int(y['stars']))
+
+    elif sort_key == 'sortByMinVer':
+        x_list = semver_split(x['min_ver'])
+        y_list = semver_split(y['min_ver'])
+        return compare_jk(x_list, y_list)
+
+    elif sort_key == 'sortByDate':
+        return compare_jk(x['date'], y['date'])
+
+    elif sort_key == 'sortByLicense':
+        return compare_jk(y['license'].lower(), x['license'].lower())
+
+    else:
+        return 0
+
+
+def theme_compare(a, b, y):
+    if len(y) == 0: return -1
+    rslt = compare_theme(a, b, y[0])
+    return theme_compare(a, b, y[1:]) if rslt == 0 else rslt