diff options
Diffstat (limited to 'src/test/test-engine.c')
| -rw-r--r-- | src/test/test-engine.c | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/src/test/test-engine.c b/src/test/test-engine.c new file mode 100644 index 0000000..cf77e7c --- /dev/null +++ b/src/test/test-engine.c @@ -0,0 +1,300 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include <errno.h> +#include <stdio.h> + +#include "bus-util.h" +#include "manager.h" +#include "manager-dump.h" +#include "rm-rf.h" +#include "service.h" +#include "slice.h" +#include "special.h" +#include "strv.h" +#include "tests.h" +#include "unit-serialize.h" + +static void verify_dependency_atoms(void) { + UnitDependencyAtom combined = 0, multi_use_atoms = 0; + + /* Let's guarantee that our dependency type/atom translation tables are fully correct */ + + for (UnitDependency d = 0; d < _UNIT_DEPENDENCY_MAX; d++) { + UnitDependencyAtom a; + UnitDependency reverse; + bool has_superset = false; + + assert_se((a = unit_dependency_to_atom(d)) >= 0); + + for (UnitDependency t = 0; t < _UNIT_DEPENDENCY_MAX; t++) { + UnitDependencyAtom b; + + if (t == d) + continue; + + assert_se((b = unit_dependency_to_atom(t)) >= 0); + + if ((a & b) == a) { + has_superset = true; + break; + } + } + + reverse = unit_dependency_from_unique_atom(a); + assert_se(reverse == _UNIT_DEPENDENCY_INVALID || reverse >= 0); + + assert_se((reverse < 0) == has_superset); /* If one dependency type is a superset of another, + * then the reverse mapping is not unique, verify + * that. */ + + log_info("Verified dependency type: %s", unit_dependency_to_string(d)); + + multi_use_atoms |= combined & a; + combined |= a; + } + + /* Make sure all atoms are used, i.e. there's at least one dependency type that references it. */ + assert_se(combined == _UNIT_DEPENDENCY_ATOM_MAX); + + for (UnitDependencyAtom a = 1; a <= _UNIT_DEPENDENCY_ATOM_MAX; a <<= 1) { + + if (multi_use_atoms & a) { + /* If an atom is used by multiple dep types, then mapping the atom to a dependency is + * not unique and *must* fail */ + assert_se(unit_dependency_from_unique_atom(a) == _UNIT_DEPENDENCY_INVALID); + continue; + } + + /* If only a single dep type uses specific atom, let's guarantee our mapping table is + complete, and thus the atom can be mapped to the single dep type that is used. */ + assert_se(unit_dependency_from_unique_atom(a) >= 0); + } +} + +int main(int argc, char *argv[]) { + _cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL; + _cleanup_(sd_bus_error_free) sd_bus_error err = SD_BUS_ERROR_NULL; + _cleanup_(manager_freep) Manager *m = NULL; + Unit *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL, *g = NULL, + *h = NULL, *i = NULL, *a_conj = NULL, *unit_with_multiple_dashes = NULL, *stub = NULL, + *tomato = NULL, *sauce = NULL, *fruit = NULL, *zupa = NULL; + Job *j; + int r; + + test_setup_logging(LOG_DEBUG); + + r = enter_cgroup_subroot(NULL); + if (r == -ENOMEDIUM) + return log_tests_skipped("cgroupfs not available"); + + /* prepare the test */ + _cleanup_free_ char *unit_dir = NULL; + assert_se(get_testdata_dir("units", &unit_dir) >= 0); + assert_se(set_unit_path(unit_dir) >= 0); + assert_se(runtime_dir = setup_fake_runtime_dir()); + + r = manager_new(RUNTIME_SCOPE_USER, MANAGER_TEST_RUN_BASIC, &m); + if (manager_errno_skip_test(r)) + return log_tests_skipped_errno(r, "manager_new"); + assert_se(r >= 0); + assert_se(manager_startup(m, NULL, NULL, NULL) >= 0); + + printf("Load1:\n"); + assert_se(manager_load_startable_unit_or_warn(m, "a.service", NULL, &a) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "b.service", NULL, &b) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "c.service", NULL, &c) >= 0); + manager_dump_units(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Test1: (Trivial)\n"); + r = manager_add_job(m, JOB_START, c, JOB_REPLACE, NULL, &err, &j); + if (sd_bus_error_is_set(&err)) + log_error("error: %s: %s", err.name, err.message); + assert_se(r == 0); + manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Load2:\n"); + manager_clear_jobs(m); + assert_se(manager_load_startable_unit_or_warn(m, "d.service", NULL, &d) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "e.service", NULL, &e) >= 0); + manager_dump_units(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Test2: (Cyclic Order, Unfixable)\n"); + assert_se(manager_add_job(m, JOB_START, d, JOB_REPLACE, NULL, NULL, &j) == -EDEADLK); + manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Test3: (Cyclic Order, Fixable, Garbage Collector)\n"); + assert_se(manager_add_job(m, JOB_START, e, JOB_REPLACE, NULL, NULL, &j) == 0); + manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Test4: (Identical transaction)\n"); + assert_se(manager_add_job(m, JOB_START, e, JOB_FAIL, NULL, NULL, &j) == 0); + manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Load3:\n"); + assert_se(manager_load_startable_unit_or_warn(m, "g.service", NULL, &g) >= 0); + manager_dump_units(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Test5: (Colliding transaction, fail)\n"); + assert_se(manager_add_job(m, JOB_START, g, JOB_FAIL, NULL, NULL, &j) == -EDEADLK); + + printf("Test6: (Colliding transaction, replace)\n"); + assert_se(manager_add_job(m, JOB_START, g, JOB_REPLACE, NULL, NULL, &j) == 0); + manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Test7: (Unmergeable job type, fail)\n"); + assert_se(manager_add_job(m, JOB_STOP, g, JOB_FAIL, NULL, NULL, &j) == -EDEADLK); + + printf("Test8: (Mergeable job type, fail)\n"); + assert_se(manager_add_job(m, JOB_RESTART, g, JOB_FAIL, NULL, NULL, &j) == 0); + manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Test9: (Unmergeable job type, replace)\n"); + assert_se(manager_add_job(m, JOB_STOP, g, JOB_REPLACE, NULL, NULL, &j) == 0); + manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Load4:\n"); + assert_se(manager_load_startable_unit_or_warn(m, "h.service", NULL, &h) >= 0); + manager_dump_units(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Test10: (Unmergeable job type of auxiliary job, fail)\n"); + assert_se(manager_add_job(m, JOB_START, h, JOB_FAIL, NULL, NULL, &j) == 0); + manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Load5:\n"); + manager_clear_jobs(m); + assert_se(manager_load_startable_unit_or_warn(m, "i.service", NULL, &i) >= 0); + SERVICE(a)->state = SERVICE_RUNNING; + SERVICE(d)->state = SERVICE_RUNNING; + manager_dump_units(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Test11: (Start/stop job ordering, execution cycle)\n"); + assert_se(manager_add_job(m, JOB_START, i, JOB_FAIL, NULL, NULL, &j) == 0); + assert_se(unit_has_job_type(a, JOB_STOP)); + assert_se(unit_has_job_type(d, JOB_STOP)); + assert_se(unit_has_job_type(b, JOB_START)); + manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Load6:\n"); + manager_clear_jobs(m); + assert_se(manager_load_startable_unit_or_warn(m, "a-conj.service", NULL, &a_conj) >= 0); + SERVICE(a)->state = SERVICE_DEAD; + manager_dump_units(m, stdout, /* patterns= */ NULL, "\t"); + + printf("Test12: (Trivial cycle, Unfixable)\n"); + assert_se(manager_add_job(m, JOB_START, a_conj, JOB_REPLACE, NULL, NULL, &j) == -EDEADLK); + manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t"); + + assert_se(!hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), b)); + assert_se(!hashmap_get(unit_get_dependencies(b, UNIT_RELOAD_PROPAGATED_FROM), a)); + assert_se(!hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), c)); + assert_se(!hashmap_get(unit_get_dependencies(c, UNIT_RELOAD_PROPAGATED_FROM), a)); + + assert_se(unit_add_dependency(a, UNIT_PROPAGATES_RELOAD_TO, b, true, UNIT_DEPENDENCY_UDEV) >= 0); + assert_se(unit_add_dependency(a, UNIT_PROPAGATES_RELOAD_TO, c, true, UNIT_DEPENDENCY_PROC_SWAP) >= 0); + + assert_se( hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), b)); + assert_se( hashmap_get(unit_get_dependencies(b, UNIT_RELOAD_PROPAGATED_FROM), a)); + assert_se( hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), c)); + assert_se( hashmap_get(unit_get_dependencies(c, UNIT_RELOAD_PROPAGATED_FROM), a)); + + unit_remove_dependencies(a, UNIT_DEPENDENCY_UDEV); + + assert_se(!hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), b)); + assert_se(!hashmap_get(unit_get_dependencies(b, UNIT_RELOAD_PROPAGATED_FROM), a)); + assert_se( hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), c)); + assert_se( hashmap_get(unit_get_dependencies(c, UNIT_RELOAD_PROPAGATED_FROM), a)); + + unit_remove_dependencies(a, UNIT_DEPENDENCY_PROC_SWAP); + + assert_se(!hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), b)); + assert_se(!hashmap_get(unit_get_dependencies(b, UNIT_RELOAD_PROPAGATED_FROM), a)); + assert_se(!hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), c)); + assert_se(!hashmap_get(unit_get_dependencies(c, UNIT_RELOAD_PROPAGATED_FROM), a)); + + assert_se(manager_load_unit(m, "unit-with-multiple-dashes.service", NULL, NULL, &unit_with_multiple_dashes) >= 0); + + assert_se(strv_equal(unit_with_multiple_dashes->documentation, STRV_MAKE("man:test", "man:override2", "man:override3"))); + assert_se(streq_ptr(unit_with_multiple_dashes->description, "override4")); + + /* Now merge a synthetic unit into the existing one */ + assert_se(unit_new_for_name(m, sizeof(Service), "merged.service", &stub) >= 0); + assert_se(unit_add_dependency_by_name(stub, UNIT_AFTER, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_FILE) >= 0); + assert_se(unit_add_dependency_by_name(stub, UNIT_AFTER, "quux.target", true, UNIT_DEPENDENCY_FILE) >= 0); + assert_se(unit_add_dependency_by_name(stub, UNIT_AFTER, SPECIAL_ROOT_SLICE, true, UNIT_DEPENDENCY_FILE) >= 0); + assert_se(unit_add_dependency_by_name(stub, UNIT_REQUIRES, "non-existing.mount", true, UNIT_DEPENDENCY_FILE) >= 0); + assert_se(unit_add_dependency_by_name(stub, UNIT_ON_FAILURE, "non-existing-on-failure.target", true, UNIT_DEPENDENCY_FILE) >= 0); + assert_se(unit_add_dependency_by_name(stub, UNIT_ON_SUCCESS, "non-existing-on-success.target", true, UNIT_DEPENDENCY_FILE) >= 0); + + log_info("/* Merging a+stub, dumps before */"); + unit_dump(a, stderr, NULL); + unit_dump(stub, stderr, NULL); + assert_se(unit_merge(a, stub) >= 0); + log_info("/* Dump of merged a+stub */"); + unit_dump(a, stderr, NULL); + + assert_se( unit_has_dependency(a, UNIT_ATOM_AFTER, manager_get_unit(m, SPECIAL_BASIC_TARGET))); + assert_se( unit_has_dependency(a, UNIT_ATOM_AFTER, manager_get_unit(m, "quux.target"))); + assert_se( unit_has_dependency(a, UNIT_ATOM_AFTER, manager_get_unit(m, SPECIAL_ROOT_SLICE))); + assert_se( unit_has_dependency(a, UNIT_ATOM_PULL_IN_START, manager_get_unit(m, "non-existing.mount"))); + assert_se( unit_has_dependency(a, UNIT_ATOM_RETROACTIVE_START_REPLACE, manager_get_unit(m, "non-existing.mount"))); + assert_se( unit_has_dependency(a, UNIT_ATOM_ON_FAILURE, manager_get_unit(m, "non-existing-on-failure.target"))); + assert_se( unit_has_dependency(manager_get_unit(m, "non-existing-on-failure.target"), UNIT_ATOM_ON_FAILURE_OF, a)); + assert_se( unit_has_dependency(a, UNIT_ATOM_ON_SUCCESS, manager_get_unit(m, "non-existing-on-success.target"))); + assert_se( unit_has_dependency(manager_get_unit(m, "non-existing-on-success.target"), UNIT_ATOM_ON_SUCCESS_OF, a)); + assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_FAILURE, manager_get_unit(m, "basic.target"))); + assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_SUCCESS, manager_get_unit(m, "basic.target"))); + assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_FAILURE_OF, manager_get_unit(m, "basic.target"))); + assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_SUCCESS_OF, manager_get_unit(m, "basic.target"))); + assert_se(!unit_has_dependency(a, UNIT_ATOM_PROPAGATES_RELOAD_TO, manager_get_unit(m, "non-existing-on-failure.target"))); + + assert_se(unit_has_name(a, "a.service")); + assert_se(unit_has_name(a, "merged.service")); + + unsigned mm = 1; + Unit *other; + + UNIT_FOREACH_DEPENDENCY(other, a, UNIT_ATOM_AFTER) { + mm *= unit_has_name(other, SPECIAL_BASIC_TARGET) ? 3 : 1; + mm *= unit_has_name(other, "quux.target") ? 5 : 1; + mm *= unit_has_name(other, SPECIAL_ROOT_SLICE) ? 7 : 1; + } + + UNIT_FOREACH_DEPENDENCY(other, a, UNIT_ATOM_ON_FAILURE) + mm *= unit_has_name(other, "non-existing-on-failure.target") ? 11 : 1; + + UNIT_FOREACH_DEPENDENCY(other, a, UNIT_ATOM_PULL_IN_START) + mm *= unit_has_name(other, "non-existing.mount") ? 13 : 1; + + assert_se(mm == 3U*5U*7U*11U*13U); + + verify_dependency_atoms(); + + /* Test adding multiple Slice= dependencies; only the last should remain */ + assert_se(unit_new_for_name(m, sizeof(Service), "tomato.service", &tomato) >= 0); + assert_se(unit_new_for_name(m, sizeof(Slice), "sauce.slice", &sauce) >= 0); + assert_se(unit_new_for_name(m, sizeof(Slice), "fruit.slice", &fruit) >= 0); + assert_se(unit_new_for_name(m, sizeof(Slice), "zupa.slice", &zupa) >= 0); + + unit_set_slice(tomato, sauce); + unit_set_slice(tomato, fruit); + unit_set_slice(tomato, zupa); + + assert_se(UNIT_GET_SLICE(tomato) == zupa); + assert_se(!unit_has_dependency(tomato, UNIT_ATOM_IN_SLICE, sauce)); + assert_se(!unit_has_dependency(tomato, UNIT_ATOM_IN_SLICE, fruit)); + assert_se( unit_has_dependency(tomato, UNIT_ATOM_IN_SLICE, zupa)); + + assert_se(!unit_has_dependency(tomato, UNIT_ATOM_REFERENCES, sauce)); + assert_se(!unit_has_dependency(tomato, UNIT_ATOM_REFERENCES, fruit)); + assert_se( unit_has_dependency(tomato, UNIT_ATOM_REFERENCES, zupa)); + + assert_se(!unit_has_dependency(sauce, UNIT_ATOM_SLICE_OF, tomato)); + assert_se(!unit_has_dependency(fruit, UNIT_ATOM_SLICE_OF, tomato)); + assert_se( unit_has_dependency(zupa, UNIT_ATOM_SLICE_OF, tomato)); + + assert_se(!unit_has_dependency(sauce, UNIT_ATOM_REFERENCED_BY, tomato)); + assert_se(!unit_has_dependency(fruit, UNIT_ATOM_REFERENCED_BY, tomato)); + assert_se( unit_has_dependency(zupa, UNIT_ATOM_REFERENCED_BY, tomato)); + + return 0; +} |