diff tests/run-tests.py @ 37342:4e6a6d0dccee

tests: conditionalize tests based on presence of custom extensions

The test harness supports injecting extensions via --extra-config-opt.
However, if you do this, various tests that print state about loaded
extensions fail.

This commit teaches the test harness to recognize when custom
extensions are loaded so that tests can use feature sniffing to
conditionalize tests based on that.

Differential Revision: https://phab.mercurial-scm.org/D3039

--- a/tests/run-tests.py	Wed Apr 04 12:16:50 2018 -0700
+++ b/tests/run-tests.py	Wed Apr 04 13:21:34 2018 -0700
@@ -1070,6 +1070,17 @@
         env["HGENCODINGMODE"] = "strict"
         env['HGIPV6'] = str(int(self._useipv6))
 
+        extraextensions = []
+        for opt in self._extraconfigopts:
+            section, key = opt.encode('utf-8').split(b'.', 1)
+            if section != 'extensions':
+                continue
+            name = key.split(b'=', 1)[0]
+            extraextensions.append(name)
+
+        if extraextensions:
+            env['HGTESTEXTRAEXTENSIONS'] = b' '.join(extraextensions)
+
         # LOCALIP could be ::1 or 127.0.0.1. Useful for tests that require raw
         # IP addresses.
         env['LOCALIP'] = self._localip()