Add integration tests

[fur] / integration_tests.py

diff --git a/integration_tests.py b/integration_tests.py
new file mode 100644 (file)
index 0000000..ddf444b
--- /dev/null
+++ b/integration_tests.py
@@ -0,0 +1,49 @@
+import os
+import os.path
+import subprocess
+import unittest
+
+EXAMPLES_PATH = os.path.join(os.path.dirname(__file__), 'examples')
+
+class OutputTests(unittest.TestCase):
+    pass
+
+def add_example_output_test(filename):
+    def test(self):
+        compile_fur_to_c_result = subprocess.call([
+            'python',
+            'main.py',
+            os.path.join(EXAMPLES_PATH, filename),
+        ])
+
+        if compile_fur_to_c_result != 0:
+            raise Exception('Example "{}" did not compile'.format(filename))
+
+        compile_c_to_executable_result = subprocess.call([
+            'gcc',
+            os.path.join(EXAMPLES_PATH, filename + '.c'),
+        ])
+
+        if compile_c_to_executable_result != 0:
+            raise Exception('Example output "{}" did not compile'.format(filename + '.c'))
+
+        actual_output = subprocess.check_output(['./a.out'])
+
+        with open(os.path.join(EXAMPLES_PATH, filename + '.output.txt'), 'rb') as f:
+            expected_output = f.read()
+
+        self.assertEqual(expected_output, actual_output)
+
+    setattr(OutputTests, 'test_' + filename, test)
+
+filenames = (
+    entry.name
+    for entry in os.scandir(EXAMPLES_PATH)
+    if entry.is_file()
+    if entry.name.endswith('.fur')
+)
+
+for filename in filenames:
+    add_example_output_test(filename)
+
+unittest.main()