testsuite: add tests for dependency=singleton

Problem: There are no tests of the singleton dependency scheme.

Add tests in t2277-dependency-singleton.t.

Author: grondo

t/Makefile.am

@@ -165,6 +165,7 @@ TESTSCRIPTS = \
 	t2274-manager-perilog-per-rank.t \
 	t2275-job-duration-validator.t \
 	t2276-job-requires.t \
+	t2277-dependency-singleton.t \
 	t2280-job-memo.t \
 	t2290-job-update.t \
 	t2291-job-update-queue.t \

t/t2277-dependency-singleton.t

@@ -0,0 +1,69 @@
+#!/bin/sh
+
+test_description='Test job dependency singleton support'
+
+. $(dirname $0)/sharness.sh
+
+
+flux version | grep -q libflux-security && test_set_prereq FLUX_SECURITY
+
+test_under_flux 2 job
+
+flux setattr log-stderr-level 1
+
+submit_as_alternate_user()
+{
+	FAKE_USERID=42
+	flux run --dry-run "$@" | \
+		flux python ${SHARNESS_TEST_SRCDIR}/scripts/sign-as.py $FAKE_USERID \
+		>job.signed
+	FLUX_HANDLE_USERID=$FAKE_USERID \
+		flux job submit --flags=signed job.signed
+}
+
+test_expect_success 'dependency=singleton rejects job with no job name' '
+	test_expect_code 1 flux submit --dependency=singleton true 2>s1.err &&
+	grep "require a job name" s1.err
+'
+test_expect_success 'jobs without a dependency run' '
+	flux run true
+'
+test_expect_success 'submit 5 singleton jobs at once' '
+	flux submit -n1 --watch --quiet --cc=1-5 --job-name=test \
+		--dependency=singleton echo {cc} > 5jobs.out &&
+	test_debug "cat 5jobs.out" &&
+	test_seq 1 5 >5jobs.expected &&
+	test_cmp 5jobs.expected 5jobs.out
+'
+test_expect_success 'submit a held job' '
+	heldid=$(flux submit -n1 --urgency=hold --job-name=foo hostname)
+'
+test_expect_success 'singleton job is stuck in DEPEND state' '
+	id=$(flux submit -n1 --job-name=foo --dependency=singleton true) &&
+	flux job wait-event -vt 30 $id dependency-add &&
+	test $(flux jobs -no {state} $id) = DEPEND
+'
+test_expect_success 'jobtap plugin query works' '
+	flux jobtap query .dependency-singleton | jq &&
+	flux jobtap query .dependency-singleton \
+		| jq -e ".[\"$(id -u):foo\"].count == 2"
+'
+test_expect_success 'singleton job with a different name runs' '
+	id2=$(flux submit -n1 --job-name=bar --dependency=singleton true) &&
+	flux job wait-event -vt 30 $id2 clean
+'
+test_expect_success FLUX_SECURITY 'allow guest access to testexec' '
+	echo exec.testexec.allow-guests=true | flux config load
+'
+test_expect_success FLUX_SECURITY 'singleton job as another user with same name runs' '
+	id3=$(submit_as_alternate_user -n1 --job-name=foo \
+	      --dependency=singleton -Sexec.test.run_duration=0.1s true) &&
+	echo "submitted $id3" &&
+	flux job wait-event -vt 30 $id3 clean
+'
+test_expect_success 'release held job, singleton should now run' '
+	test $(flux jobs -no {state} $id) = DEPEND &&
+	flux job urgency $heldid default &&
+	flux job wait-event -vt30 $id clean
+'
+test_done