test: add tests for custom policy interfaces

Problem: the expansion of fluxion's dfu_match_policy_factory to
include custom policies opens the door for more creative policy
options, but doesn't test them.

Add a shell test, starting from a previous test of node-exclusivity
but substituting the short policy keys (i.e. "hinodex") for longer,
"custom" policy strings.

t/CMakeLists.txt

@@ -67,6 +67,7 @@ set(ALL_TESTS
   t3034-resource-pconstraints.t
   t3035-resource-remove.t
   t3036-rq2.t
+  t3037-resource-custom-policy.t
   t3300-system-dontblock.t
   t3301-system-latestart.t
   t4000-match-params.t

t/t3037-resource-custom-policy.t

@@ -0,0 +1,79 @@
+#!/bin/sh
+
+test_description='Test node-locality-aware scheduling'
+
+. $(dirname $0)/sharness.sh
+
+cmd_dir="${SHARNESS_TEST_SRCDIR}/data/resource/commands/nodex"
+exp_dir="${SHARNESS_TEST_SRCDIR}/data/resource/expected/nodex"
+grugs="${SHARNESS_TEST_SRCDIR}/data/resource/grugs/small.graphml"
+query="../../resource/utilities/resource-query"
+
+# Takes policy and cmd outfile prefix
+run_tests_with_policy() {
+    pol=$1
+    prefix=$2
+
+    cmds001="${cmd_dir}/cmds01.in"
+    test001_desc="allocate 7 jobs with node-level constraint (pol=$pol)"
+    test_expect_success "${test001_desc}" '
+        sed "s~@TEST_SRCDIR@~${SHARNESS_TEST_SRCDIR}~g" ${cmds001} > cmds001 &&
+        ${query} -L ${grugs} -S CA -P $pol -t ${prefix}1.R.out < cmds001 &&
+        test_cmp ${prefix}1.R.out ${exp_dir}/${prefix}1.R.out
+    '
+
+    cmds002="${cmd_dir}/cmds02.in"
+    test002_desc="allocate 7 jobs with no node-level constraint (pol=$pol)"
+    test_expect_success "${test002_desc}" '
+        sed "s~@TEST_SRCDIR@~${SHARNESS_TEST_SRCDIR}~g" ${cmds002} > cmds002 &&
+        ${query} -L ${grugs} -S CA -P $pol -t ${prefix}2.R.out < cmds002 &&
+        test_cmp ${prefix}2.R.out ${exp_dir}/${prefix}2.R.out
+    '
+
+    cmds003="${cmd_dir}/cmds03.in"
+    test003_desc="match allocate 7 jobs -- last fails (pol=$pol)"
+    test_expect_success "${test003_desc}" '
+        sed "s~@TEST_SRCDIR@~${SHARNESS_TEST_SRCDIR}~g" ${cmds003} > cmds003 &&
+        ${query} -L ${grugs} -S CA -P $pol -t ${prefix}3.R.out < cmds003 &&
+        test_cmp ${prefix}3.R.out ${exp_dir}/${prefix}3.R.out
+    '
+}
+
+# Selection Policy -- High node first with node exclusivity (-P hinodex)
+#     Selection behavior is identical to hinode except that
+#     it marks each selected node as exclusive even if the
+#     jobspec does not require node exclusivity and
+#     that it selects and emits all of the node-local resources
+#     for each node where at least one node-local resource is selected.
+#
+#     For a jobspec with node[1]->slot[1]->core[1], it selects
+#     36 cores from the selected node if there is a total of
+#     36 cores in that node.
+#
+#     For a jobspec with slot[18]->core[1], it selects
+#     again all 36 cores from the current available highest node.
+#
+
+run_tests_with_policy "high=true node_centric=true node_exclusive=true" 00
+
+#
+# Selection Policy -- Low node first with node exclusivity (-P lonodex)
+#     Selection behavior is identical to lonode except that
+#     it marks each selected node as exclusive even if the
+#     jobspec does not require node exclusivity and
+#     that it selects and emits all of the node-local resources
+#     for each node where at least one node-local resource is selected.
+#
+#     For a jobspec with node[1]->slot[1]->core[1], it selects
+#     36 cores from the selected node if there is a total of
+#     36 cores in that node.
+#
+#     For a jobspec with slot[18]->core[1], it selects
+#     again all 36 cores from the current available lowest node.
+#
+
+run_tests_with_policy "low=true node_centric=true node_exclusive=true" 01
+
+run_tests_with_policy "high=true node_centric=true node_exclusive=true stop_on_1_matches=true" 00
+
+test_done