Add three new 'requiredby' pactests

These should test various aspects of the DB when dealing with requiredby
entries. At least one fails without Nagy's alpm_depcmp patch.

Signed-off-by: Dan McGee <dan@archlinux.org>

pactest/tests/requiredby001.py

@@ -0,0 +1,20 @@
+self.description = "A package is downgraded no longer satisfying a depend"
+
+lp1 = pmpkg("pkg1")
+lp1.depends = ["pkg2=1.1"]
+self.addpkg2db("local", lp1)
+
+lp2 = pmpkg("pkg2", "1.1-1")
+lp2.requiredby = ["pkg1"]
+self.addpkg2db("local", lp2)
+
+p = pmpkg("pkg2", "1.0-1")
+self.addpkg(p)
+
+self.args = "-U %s" % p.filename()
+
+self.addrule("PACMAN_RETCODE=1")
+self.addrule("PKG_EXIST=pkg1")
+self.addrule("PKG_VERSION=pkg2|1.1-1")
+self.addrule("PKG_EXIST=pkg2")
+self.addrule("PKG_REQUIREDBY=pkg2|pkg1")

pactest/tests/requiredby002.py

@@ -0,0 +1,16 @@
+self.description = "A package was removed with -Rd, then downgraded"
+
+lp1 = pmpkg("pkg1")
+lp1.depends = ["pkg2=1.1"]
+self.addpkg2db("local", lp1)
+
+p = pmpkg("pkg2", "1.0-1")
+self.addpkg(p)
+
+self.args = "-U %s" % p.filename()
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("PKG_EXIST=pkg1")
+self.addrule("PKG_VERSION=pkg2|1.0-1")
+self.addrule("PKG_EXIST=pkg2")
+self.addrule("!PKG_REQUIREDBY=pkg2|pkg1")

pactest/tests/requiredby003.py

@@ -0,0 +1,16 @@
+self.description = "A package was removed with -Rd, then upgraded"
+
+lp1 = pmpkg("pkg1")
+lp1.depends = ["pkg2>=1.1"]
+self.addpkg2db("local", lp1)
+
+p = pmpkg("pkg2", "1.2-1")
+self.addpkg(p)
+
+self.args = "-U %s" % p.filename()
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("PKG_EXIST=pkg1")
+self.addrule("PKG_VERSION=pkg2|1.2-1")
+self.addrule("PKG_EXIST=pkg2")
+self.addrule("PKG_REQUIREDBY=pkg2|pkg1")