tests: load showstack in test-pull-http.t so network hangs are easier to find
This also gives us some minimal "it loads" coverage on showstack,
which I rather like. showstack doesn't work on Windows per mbarbison,
so it's disabled there.
I added this in service of debugging a hang introduced on Python 3 by
revision a88d68dc3ee8. I'm still not sure what the problem there is,
but this at least gives us a little bit of a chance to figure out
what's going on.
Differential Revision: https://phab.mercurial-scm.org/D3247
--- a/tests/test-pull-http.t Wed Apr 11 14:39:49 2018 -0400
+++ b/tests/test-pull-http.t Wed Apr 11 14:57:11 2018 -0400
@@ -1,5 +1,16 @@
#require killdaemons
+#if no-windows
+For debugging: this is a pretty simple test that is a good candidate
+for tracking down network-related bugs. Sometimes a command in this
+hangs, so having showstack pre-loaded is sometimes helpful. This also
+gives us a test that at least proves showstack can be loaded.
+ $ cat >> $HGRCPATH <<EOF
+ > [extensions]
+ > showstack = $TESTDIR/../contrib/showstack.py
+ > EOF
+#endif
+
$ hg init test
$ cd test
$ echo a > a