lasagna: generate tests (#423)

Author: keiravillekode

generators/exercises/lasagna.py

@@ -0,0 +1,71 @@
+FUNC_PROTO = """\
+#include "vendor/unity.h"
+
+#include <stdint.h>
+
+extern int64_t expected_minutes_in_oven(void);
+extern int64_t remaining_minutes_in_oven(int64_t actual_minutes_in_oven);
+extern int64_t preparation_time_in_minutes(int64_t number_of_layers);
+extern int64_t elapsed_time_in_minutes(int64_t number_of_layers, int64_t actual_minutes_in_oven);
+"""
+
+
+def extra_cases():
+    return [
+        {
+            "task_id": 1,
+            "description": "expected",
+            "property": "expected_minutes_in_oven",
+            "input": None,
+            "expected": 40,
+        },
+        {
+            "task_id": 2,
+            "description": "remaining",
+            "property": "remaining_minutes_in_oven",
+            "input": 25,
+            "expected": 15,
+        },
+        {
+            "task_id": 3,
+            "description": "preparation_one",
+            "property": "preparation_time_in_minutes",
+            "input": 1,
+            "expected": 2,
+        },
+        {
+            "task_id": 3,
+            "description": "preparation_many",
+            "property": "preparation_time_in_minutes",
+            "input": 4,
+            "expected": 8,
+        },
+        {
+            "task_id": 4,
+            "description": "elapsed_one",
+            "property": "elapsed_time_in_minutes",
+            "input": {"number_of_layers": 1, "actual_minutes_in_oven": 30},
+            "expected": 32,
+        },
+        {
+            "task_id": 4,
+            "description": "elapsed_many",
+            "property": "elapsed_time_in_minutes",
+            "input": {"number_of_layers": 4, "actual_minutes_in_oven": 8},
+            "expected": 16,
+        },
+    ]
+
+
+def gen_func_body(prop, inp, expected):
+    if prop == "expected_minutes_in_oven":
+        return f"TEST_ASSERT_EQUAL_INT64({expected}, {prop}());\n"
+    if prop == "remaining_minutes_in_oven" or prop == "preparation_time_in_minutes":
+        message = f"The function was called with argument: {inp}."
+        return f'TEST_ASSERT_EQUAL_INT64_MESSAGE({expected}, {prop}({inp}), "{message}");\n'
+    message = f"The function was called with arguments: {inp['number_of_layers']}, {inp['actual_minutes_in_oven']}."
+    return (
+        f"TEST_ASSERT_EQUAL_INT64_MESSAGE({expected}, {prop}"
+        f"({inp['number_of_layers']}, {inp['actual_minutes_in_oven']}), "
+        f'"{message}");\n'
+    )