Add some SIGPIPE test cases

Test for SIGPIPE behavior in three different cases:
- build scriptlets ought to have SIGPIPE working as usual (RhBug:651463)
- SIGPIPE received from install scriptlet (RhBug:1264198) which currently
  fails because we end up exiting on that signal after the transaction.
  The original case involves file triggers, we simulate it by kill'ing
  for simplicitys sake.
- query involving --pipe (RhBug:444389)

Should test for RhBug:471591 too but need a simpler reproducer than
in the bug, leaving that to some rainy day.

tests/Makefile.am

@@ -31,6 +31,7 @@ TESTSUITE_AT += rpmpython.at
 TESTSUITE_AT += rpmdepmatch.at
 TESTSUITE_AT += rpmscript.at
 TESTSUITE_AT += rpmsigdig.at
+TESTSUITE_AT += rpmio.at
 EXTRA_DIST += $(TESTSUITE_AT)
 
 ## testsuite data
@@ -60,6 +61,7 @@ EXTRA_DIST += data/SPECS/triggers.spec
 EXTRA_DIST += data/SPECS/filetriggers.spec
 EXTRA_DIST += data/SPECS/prefixtest.spec
 EXTRA_DIST += data/SPECS/testdoc.spec
+EXTRA_DIST += data/SPECS/sigpipe.spec
 EXTRA_DIST += data/SOURCES/hello-1.0-modernize.patch
 EXTRA_DIST += data/SOURCES/hello-1.0.tar.gz
 EXTRA_DIST += data/SOURCES/hello-2.0.tar.gz

tests/data/SPECS/sigpipe.spec

@@ -0,0 +1,47 @@
+%bcond_with buildpipe
+%bcond_with manyfiles
+
+Name:		sigpipe
+Version:	1.0
+Release:	1%{?dist}
+Summary:	Testing SIGPIPE behavior
+
+Group:		Testing
+License:	GPLv2
+BuildArch:	noarch
+
+%description
+%{summary}
+%end
+
+%define datadir /opt/%{name}/data
+
+# Reproducer for https://bugzilla.redhat.com/show_bug.cgi?id=651463
+%if %{with buildpipe}
+%prep
+bash -c 's=$SECONDS
+set -o pipefail
+for ((i=0; i < 30; i++))
+do      printf hello 2>/dev/null
+        sleep .1
+done |  /bin/sleep 1
+(( (SECONDS-s) < 2 )) || exit 1'
+%endif
+
+%install
+mkdir -p %{buildroot}/%{datadir}
+%if %{with manyfiles}
+for i in {1..32}; do
+    mkdir %{buildroot}/%{datadir}/${i}
+    for j in {a..z}; do
+        touch %{buildroot}/%{datadir}/${i}/${j}
+    done
+done
+%endif
+
+# For simulating https://bugzilla.redhat.com/show_bug.cgi?id=1264198
+%post
+kill -PIPE ${PPID}
+
+%files
+%{datadir}

tests/rpmio.at

@@ -0,0 +1,50 @@
+#    rpmio.at: Misc (librpm)io tests
+
+AT_BANNER([I/O])
+
+AT_SETUP([SIGPIPE from --pipe])
+AT_KEYWORDS([signals])
+AT_CHECK([
+RPMDB_CLEAR
+RPMDB_INIT
+
+runroot rpmbuild --quiet --with manyfiles -bb /data/SPECS/sigpipe.spec
+runroot rpm -qpl /build/RPMS/noarch/sigpipe-1.0-1.noarch.rpm --pipe "cat" | head -1
+],
+[0],
+[/opt/sigpipe/data
+],
+[])
+AT_CLEANUP
+
+AT_SETUP([SIGPIPE from install scriptlet])
+AT_KEYWORDS([signals])
+# This incorrectly exists with code 141 due to SIGPIPE from scriptlet
+AT_XFAIL_IF([test $RPM_XFAIL -ne 0])
+AT_CHECK([
+RPMDB_CLEAR
+RPMDB_INIT
+
+runroot rpmbuild --quiet -bb /data/SPECS/sigpipe.spec
+runroot rpm -U --nodeps /build/RPMS/noarch/sigpipe-1.0-1.noarch.rpm
+],
+[0],
+[],
+[])
+AT_CLEANUP
+
+# XXX TODO: test for RhBug:471591 too, but needs a simpler reproducer
+
+AT_SETUP([SIGPIPE in build scriptlet])
+AT_KEYWORDS([signals])
+AT_CHECK([
+RPMDB_CLEAR
+RPMDB_INIT
+
+run rpmbuild --quiet --with buildpipe -bb "${RPMDATA}/SPECS/sigpipe.spec"
+],
+[0],
+[],
+[])
+AT_CLEANUP
+

tests/rpmtests.at

@@ -1,4 +1,5 @@
 m4_include([rpmgeneral.at])
+m4_include([rpmio.at])
 m4_include([rpmquery.at])
 m4_include([rpmverify.at])
 m4_include([rpmsigdig.at])