Include TEMPLATE_TEST_CASEs in test count

So that we can use catch's `TEMPLATE_TEST_CASE` without the test count
failing when using make to run the tests. When using
`TEMPLATE_TEST_CASE` the number of tests added to catch's count of test
depends on the number of type arguments supplied. Therefore this update
is needed to count the arguments  to get the correct count.

Author: thomasspriggs

unit/count_tests.py

@@ -8,14 +8,39 @@
 import sys
 
 
+class argument_separator_countert:
+    def __init__(self):
+        self.bracket_depth = 0
+        self.separators = 0
+
+    def read_text(self, text):
+        for character in text:
+            if character == '(' or character == '<':
+                self.bracket_depth += 1
+            elif character == ')' or character == '(':
+                self.bracket_depth -= 1
+            elif character == ',' and self.bracket_depth == 1:
+                self.separators += 1
+
+
 def tests_in_file(file_path):
     file_test_count = 0
+    template_counter = None
     with open(file_path, "rt") as file:
         for line in file:
-            if line.startswith("TEST_CASE"):
-                file_test_count += 1
-            if line.startswith("SCENARIO"):
-                file_test_count += 1
+            if template_counter is None:
+                if line.startswith("TEST_CASE"):
+                    file_test_count += 1
+                if line.startswith("SCENARIO"):
+                    file_test_count += 1
+                if line.startswith("TEMPLATE_TEST_CASE"):
+                    template_counter = argument_separator_countert()
+                    template_counter.read_text(line)
+            else:
+                template_counter.read_text(line)
+            if template_counter is not None and template_counter.bracket_depth == 0:
+                file_test_count += (template_counter.separators - 1)
+                template_counter = None
     return file_test_count