Add sync044 pactest : A dependency induces a replacement.

That is the problem mentioned by Nagy there (with suggestions for fixing it) :
http://www.archlinux.org/pipermail/pacman-dev/2007-August/009082.html

If a dependency conflicts with a local package and has to replace it,
the PM_SYNC_TYPE_DEPEND information is lost, and the resulting install
reason is wrong (the package is marked as explictly installed).

Signed-off-by: Chantry Xavier <shiningxc@gmail.com>

pactest/tests/sync044.py

@@ -0,0 +1,20 @@
+self.description = "A dependency induces a replacement"
+
+lp1 = pmpkg("pkg1")
+self.addpkg2db("local", lp1);
+
+sp2 = pmpkg("pkg2")
+sp2.depends = ["pkg3"]
+self.addpkg2db("sync", sp2);
+
+sp3 = pmpkg("pkg3")
+sp3.conflicts = ["pkg1"]
+self.addpkg2db("sync", sp3);
+
+self.args = "-S pkg2"
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("!PKG_EXIST=pkg1")
+self.addrule("PKG_EXIST=pkg2")
+self.addrule("PKG_EXIST=pkg3")
+self.addrule("PKG_REASON=pkg3|1")