tests/test-propertycache.py

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-propertycache.py	Mon Sep 30 14:36:11 2013 +0200
@@ -0,0 +1,94 @@
+"""test behavior of propertycache and unfiltered propertycache
+
+The repoview overlay is quite complexe. We test the behavior of
+property cache of both localrepo and repoview to prevent
+regression."""
+
+import os, subprocess
+import mercurial.localrepo
+import mercurial.repoview
+import mercurial.util
+import mercurial.hg
+import mercurial.ui as uimod
+
+
+# create some special property cache that trace they call
+
+calllog = []
[e-mail]
+def testcachedfoobar(repo):
+    name = repo.filtername
+    if name is None:
+        name = ''
+    val = len(name)
+    calllog.append(val)
+    return val
+
+#plug them on repo
+mercurial.localrepo.localrepository.testcachedfoobar = testcachedfoobar
+
+
+# create an empty repo. and instanciate it. It is important to run
+# those test on the real object to detect regression.
+repopath = os.path.join(os.environ['TESTTMP'], 'repo')
+subprocess.check_call(['hg', 'init', repopath])
+ui = uimod.ui()
+repo = mercurial.hg.repository(ui, path=repopath).unfiltered()
+
+
+print ''
+print '=== property cache ==='
+print ''
+print 'calllog:', calllog
+print 'cached value (unfiltered):',
+print vars(repo).get('testcachedfoobar', 'NOCACHE')
+
+print ''
+print '= first access on unfiltered, should do a call'
+print 'access:', repo.testcachedfoobar
+print 'calllog:', calllog
+print 'cached value (unfiltered):',
+print vars(repo).get('testcachedfoobar', 'NOCACHE')
+
+print ''
+print '= second access on unfiltered, should not do call'
+print 'access', repo.testcachedfoobar
+print 'calllog:', calllog
+print 'cached value (unfiltered):',
+print vars(repo).get('testcachedfoobar', 'NOCACHE')
+
+print ''
+print '= first access on "visible" view, should do a call'
+visibleview = repo.filtered('visible')
+print 'cached value ("visible" view):',
+print vars(visibleview).get('testcachedfoobar', 'NOCACHE')
+print 'access:', visibleview.testcachedfoobar
+print 'calllog:', calllog
+print 'cached value (unfiltered):',
+print vars(repo).get('testcachedfoobar', 'NOCACHE')
+print 'cached value ("visible" view):',
+print vars(visibleview).get('testcachedfoobar', 'NOCACHE')
+
+print ''
+print '= second access on "visible view", should not do call'
+print 'access:', visibleview.testcachedfoobar
+print 'calllog:', calllog
+print 'cached value (unfiltered):',
+print vars(repo).get('testcachedfoobar', 'NOCACHE')
+print 'cached value ("visible" view):',
+print vars(visibleview).get('testcachedfoobar', 'NOCACHE')
+
+print ''
+print '= no effect on other view'
+immutableview = repo.filtered('immutable')
+print 'cached value ("immutable" view):',
+print vars(immutableview).get('testcachedfoobar', 'NOCACHE')
+print 'access:', immutableview.testcachedfoobar
+print 'calllog:', calllog
+print 'cached value (unfiltered):',
+print vars(repo).get('testcachedfoobar', 'NOCACHE')
+print 'cached value ("visible" view):',
+print vars(visibleview).get('testcachedfoobar', 'NOCACHE')
+print 'cached value ("immutable" view):',
+print vars(immutableview).get('testcachedfoobar', 'NOCACHE')
+