tests: add 13-mockchain-gen-br.tst

Test that mockchain works, with tmpfs plugin ON (keep_mounted=True),
nocache plugin ON, and dynamic buildrequires package.

Relates: #482, #512, #479

mock/integration-tests/13-mockchain-gen-br.tst

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+if test -z "$TESTDIR"; then
+    TESTDIR=$(dirname "$(readlink -f "$0")")
+fi
+
+. ${TESTDIR}/functions
+
+: "${MOCKCMD=mock}"
+: "${MOCKCHAIN=mockchain}"
+
+header "online mockchain, tmpfs.keep_mounted=True, nosync and one package having generated BuildRequires"
+
+test "$(rpm -qa nosync | wc -l)" -eq 2 || die "nosync.x86_64 and nosync.i686 needs to be installed"
+
+confdir=$HOME/.config
+mkdir -p "$confdir"
+local_config=$confdir/mock.cfg
+
+# cleanup potentially mounted stuff we'll overmount by tmpfs
+runcmd "$MOCKCMD --scrub=chroot"
+runcmd "$MOCKCMD --scrub=bootstrap"
+
+test -f "$local_config" && die "please remove $local_config first"
+
+cat > "$local_config" <<EOF
+config_opts['plugin_conf']['tmpfs_enable'] = True
+config_opts['plugin_conf']['tmpfs_opts']['keep_mounted'] = True
+config_opts['nosync'] = True
+EOF
+cleanup() {
+    rm "$local_config"
+}
+trap cleanup EXIT
+
+packages="
+    https://github.com/rpm-software-management/mock-test-data/raw/master/python-copr-999-1.src.rpm
+    https://github.com/rpm-software-management/mock-test-data/raw/master/dep-on-python-copr-999-1-0.src.rpm
+"
+
+eval 'set -- $packages'
+runcmd "$MOCKCHAIN $*" || die "mockchain build failed"