new test cases for strict checks

Signed-off-by: Ferit Yiğit BALABAN <fyb@fybx.dev>

tests/test_complex_cases.py

@@ -0,0 +1,68 @@
+#
+#   This file is part of the crispy-parser library.
+#   Copyright (C) 2023  Ferit Yiğit BALABAN
+#
+#   This library is free software; you can redistribute it and/or
+#   modify it under the terms of the GNU Lesser General Public
+#   License as published by the Free Software Foundation; either
+#   version 2.1 of the License, or (at your option) any later version.
+#   
+#   This library is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#   Lesser General Public License for more details.
+#   
+#   You should have received a copy of the GNU Lesser General Public
+#   License along with this library; if not, write to the Free Software
+#   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+#   USA.
+
+
+from unittest import TestCase
+
+from crispy.crispy import Crispy
+from crispy.parsing_exception import ParsingException
+
+
+class Test_Complex_Cases(TestCase):
+    def setUp(self) -> None:
+        self.c = Crispy()
+        self.c.add_subcommand("add", "Adds two numbers")
+        self.c.add_subcommand("subtract", "Subtracts two numbers")
+        self.c.add_variable("number1", int)
+        self.c.add_variable("number2", int)
+
+    def test_add_numbers(self):
+        expected = ("add", {"number1": 5, "number2": 3})
+        actual = self.c.parse_string("add --number1=5 -N 3")
+        self.assertEqual(expected, actual)
+
+    def test_subtract_numbers(self):
+        expected = ("subtract", {"number1": 5, "number2": 3})
+        actual = self.c.parse_string("subtract --number1 5 -N=3")
+        self.assertEqual(expected, actual)
+
+    def test_subcommand_in_middle(self):
+        expected = ("add", {"number1": 5, "number2": 3})
+        actual = self.c.parse_string("--number1=5 add -N 3")
+        self.assertEqual(expected, actual)
+
+    def test_subcommand_at_end(self):
+        expected = ("add", {"number1": 5, "number2": 3})
+        actual = self.c.parse_string("--number1=5 -N 3 add")
+        self.assertEqual(expected, actual)
+
+    def test_graceful_error(self):
+        with self.assertRaises(ParsingException) as context:
+            # --number15 is not a valid key
+            self.c.parse_string("add --number1 --number2=3")
+        self.assertEqual("int type value", context.exception.expected)
+        self.assertEqual(2, context.exception.at_position)
+        self.assertEqual("--number2=3", context.exception.found)
+
+    def test_graceful_error2(self):
+        with self.assertRaises(ParsingException) as context:
+            self.c.parse_string("subtract -n =5 --number2=3")
+        self.assertEqual("int type value", context.exception.expected)
+        self.assertEqual(2, context.exception.at_position)
+        self.assertEqual("=5", context.exception.found)