basic dump-api tool

tests/test_api/test_api.py

@@ -0,0 +1,29 @@
+import os.path
+import subprocess
+import unittest
+
+
+class TestAPICompat(unittest.TestCase):
+
+    # path to dump-api script
+    SCRIPT = os.path.relpath(os.path.dirname(__file__) + '/../../devtools/check-api')
+
+    # base api data, as generated by dump-api
+    BASE = os.path.relpath(os.path.dirname(__file__) + '/data/api.json')
+
+    def test_api_compat(self):
+        cmd = [self.SCRIPT, self.BASE]
+        proc = subprocess.Popen(cmd, stderr=subprocess.PIPE)
+        (_, err) = proc.communicate()
+        status = proc.wait()
+        errors = 0
+        for line in err.decode().splitlines():
+            if line.startswith('ERROR'):
+                print(line)
+                errors += 1
+        if errors or status != 0:
+            print('Command failed: %s' % ' '.join(cmd))
+            raise Exception('API verification failed')
+
+
+# the end