/tests/t0004-module-loading.sh

  1#!/bin/sh
  2
  3test_description='pdsh dynamic module support'
  4
  5TEST_MODULE_PATH="$(pwd)/test-modules"
  6
  7. ${srcdir:-.}/test-lib.sh
  8
  9if ! test_have_prereq DYNAMIC_MODULES; then
 10	skip_all='skipping dynamic module tests, pdsh built with static modules'
 11	test_done
 12fi
 13
 14
 15if ! test -f $TEST_MODULE_PATH/a.la -a -f $TEST_MODULE_PATH/b.la; then
 16	echo "$0: Test modules A & B not built, please run \"make check.\"" >&2
 17	exit 1
 18fi
 19
 20
 21module_list () {
 22	pdsh -L "$EXTRA_PDSH_ARGS" 2>&1 | \
 23		perl -n -e '\
 24			chomp; ($k,$v) = split(/: */);
 25			$m = $v if ($k eq "Module");
 26			print "$m $v\n" if ($k eq "Active");'
 27}
 28
 29loaded_modules() {
 30	module_list | awk '$2 == "yes" {print $1}'
 31}
 32
 33conflicting_modules() {
 34	module_list | awk '$2 == "no" {print $1}'
 35}
 36
 37module_is_active() {
 38	loaded_modules | while read m; do
 39		if [ "$m" = "$1" ]; then
 40			return 0
 41        fi 
 42	done
 43}
 44
 45module_is_inactive() {
 46	conflicting_modules | while read m; do
 47		if [ "$m" = "$1" ]; then
 48			return 0
 49        fi 
 50	done
 51}
 52
 53test_output_matches() {
 54	OUTPUT="$1"
 55	PATTERN="$2"
 56	if ! echo "$OUTPUT" | grep -q "$PATTERN" ; then
 57		say_color error "Error: Didn't find pattern \"$PATTERN\""
 58		say_color info  "OUTPUT=$OUTPUT"
 59		false
 60	fi
 61}
 62
 63unset EXTRA_PDSH_ARGS
 64
 65test_expect_success NOTROOT 'PDSH_MODULE_DIR functionality' '
 66	PDSH_MODULE_DIR=$TEST_DIRECTORY/test-modules
 67	module_is_active A && module_is_active B
 68'
 69
 70export PDSH_MODULE_DIR="$TEST_DIRECTORY/test-modules"
 71
 72test_expect_success NOTROOT 'module A takes precedence over B' '
 73	module_is_active misc/A && module_is_inactive misc/B
 74'
 75
 76test_expect_success NOTROOT 'pdsh -M B ativates module B' '
 77	EXTRA_PDSH_ARGS="-M B" 
 78	module_is_active misc/B && module_is_inactive misc/A
 79'
 80test_expect_success NOTROOT 'PDSH_MISC_MODULES option works' '
 81	PDSH_MISC_MODULES=B
 82	module_is_active misc/B && module_is_inactive misc/A
 83'
 84test_expect_success NOTROOT '-M option overrides PDSH_MISC_MODULES environment var' '
 85	OUTPUT=$(PDSH_MISC_MODULES=B pdsh -MA -L 2>&1)
 86	say_color error "$OUTPUT"
 87'
 88test_expect_success NOTROOT 'pdsh help string correctly displays options of loaded modules' '
 89	OUTPUT=$(pdsh -h 2>&1 | grep ^-a) &&
 90	test_output_matches "$OUTPUT" "Module A" &&
 91	OUTPUT=$(pdsh -M B -h 2>&1 | grep ^-a) &&
 92	test_output_matches "$OUTPUT" "Module B"
 93'
 94test_expect_success NOTROOT 'Loading conflicting module with -M causes error' '
 95	OUTPUT=$(pdsh -MA,B 2>&1 | grep Warning)
 96	test_output_matches "$OUTPUT" \
 97		"Failed to initialize requested module \"misc/B\""
 98'
 99
100test_expect_success NOTROOT 'Conflicting modules dont run init()' '
101    PDSH_MODULE_DIR=$TEST_DIRECTORY/test-modules
102    if pdsh -q 2>&1 | grep "B: in init"; then
103	    say_color error "Error: init routine for module B run unexpectedly"
104		false
105	fi
106'
107test_expect_success NOTROOT 'Force loaded module runs init()' '
108    PDSH_MODULE_DIR=$TEST_DIRECTORY/test-modules
109    if ! pdsh -q -MB 2>&1 | grep "B: in init"; then
110	    say_color error "Error: init routine for module B not run with -M B"
111		false
112    fi
113'
114test_expect_success NOTROOT 'New conflicting module does not run init() with -M' '
115    PDSH_MODULE_DIR=$TEST_DIRECTORY/test-modules
116    if pdsh -q -MB 2>&1 | grep "A: in init"; then
117		say_color error "Error: A init routine run with -M B"
118		false
119	fi
120'
121
122test_done