test: Add basic test for cancel and info handlers within resource

Test the functionality of the cancel and info handlers within
resource module using flux-resource front-end command.

Use the original HOME environment variable as sharness
interferes with Python's module search path.
Python uses HOME to determine its local site-package path,
and changing this leads to an incorrect search path.

Update Makefile rule.

t/Makefile.am

@@ -66,6 +66,7 @@ TESTS = \
     t3010-resource-power.t \
     t4001-match-allocate.t \
     t4002-match-reserve.t \
+    t4003-cancel-info.t \
     t5000-valgrind.t
 
 check_SCRIPTS = $(TESTS)

t/t4003-cancel-info.t

@@ -0,0 +1,88 @@
+#!/bin/sh
+#set -x
+
+test_description='Test the basic functionality of cancel and info within resource
+
+Ensure that the cancel and info handlers within the resource module works
+'
+
+ORIG_HOME=${HOME}
+
+. `dirname $0`/sharness.sh
+
+#
+# sharness modifies $HOME environment variable, but this interferes
+# with python's package search path, in particular its user site package.
+#
+HOME=${ORIG_HOME}
+
+grug="${SHARNESS_TEST_SRCDIR}/data/resource/grugs/tiny.graphml"
+jobspec="${SHARNESS_TEST_SRCDIR}/data/resource/jobspecs/basics/test001.yaml"
+
+#
+# test_under_flux is under sharness.d/
+#
+test_under_flux 1
+
+#
+# print only with --debug
+#
+test_debug '
+    echo ${grug} &&
+    echo ${jobspec}
+'
+
+test_expect_success 'loading resource module with a tiny machine config works' '
+    flux module load resource grug-conf=${grug} \
+subsystems=containment policy=high
+'
+
+test_expect_success 'resource-cancel works' '
+    flux resource match allocate ${jobspec} &&
+    flux resource cancel 0 &&
+    flux resource match allocate ${jobspec} &&
+    flux resource cancel 1 &&
+    flux resource match allocate ${jobspec} &&
+    flux resource cancel 2 &&
+    flux resource match allocate ${jobspec} &&
+    flux resource cancel 3
+'
+
+test_expect_success 'resource-info on cancelled jobs works' '
+    flux resource info 0 > info.0 &&
+    flux resource info 1 > info.1 &&
+    flux resource info 2 > info.2 &&
+    flux resource info 3 > info.3 &&
+    grep CANCELLED info.0 &&
+    grep CANCELLED info.1 &&
+    grep CANCELLED info.2 &&
+    grep CANCELLED info.3
+'
+
+test_expect_success 'allocate works with 1-node/1-socket after cancels' '
+    flux resource match allocate ${jobspec} &&
+    flux resource match allocate ${jobspec} &&
+    flux resource match allocate ${jobspec} &&
+    flux resource match allocate ${jobspec}
+'
+
+test_expect_success 'resource-info on allocated jobs works' '
+    flux resource info 4 > info.4 &&
+    flux resource info 5 > info.5 &&
+    flux resource info 6 > info.6 &&
+    flux resource info 7 > info.7 &&
+    grep ALLOCATED info.4 &&
+    grep ALLOCATED info.5 &&
+    grep ALLOCATED info.6 &&
+    grep ALLOCATED info.7
+'
+
+test_expect_success 'cancel on nonexistent jobid is handled gracefully' '
+    test_expect_code 1 flux resource cancel 100000
+'
+
+test_expect_success 'removing resource works' '
+    flux module remove resource
+'
+
+test_done