Test to find missing test cases

tests/test_testcases_exists.py

@@ -0,0 +1,40 @@
+"""Ensure that testcases exist for all templates."""
+import csv
+import glob
+import os
+
+from ntc_templates.parse import _get_template_dir
+
+KNOWN_MISSING_TESTS = [
+    'cisco_ios_show_vlan',
+    'cisco_nxos_show_interface_brief'
+]
+
+
+def load_indexdata():
+    """Load data from index file."""
+    index_data = []
+    with open('%s%sindex' % (_get_template_dir(), os.sep)) as indexfs:
+        data = csv.reader(indexfs)
+        for row in data:
+            if len(row) > 2 and row[0] != 'Template':
+                index_data.append(row)
+    return index_data
+
+
+def test_verify_parsed_and_reference_data_exists():
+    """Verify that at least one test exists for all entries in the index file."""
+    index = sorted(load_indexdata())
+    coverage = {}
+    for row in index:
+        template = row[0].strip()
+        platform = row[2].strip()
+        cut = len(platform) + 1
+        command = template[cut:].split('.')[0]
+        cases = 'tests/%s/%s/*.raw' % (platform, command)
+        test_list = glob.glob(cases)
+        coverage['%s_%s' % (platform, command)] = len(test_list)
+
+    for test in coverage:
+        if coverage[test] == 0 and test not in KNOWN_MISSING_TESTS:
+            assert test == 'No test cases found'