tests/lib: compile `test-plugins` as C++
authorSimon Marchi <simon.marchi@efficios.com>
Fri, 31 May 2024 17:06:03 +0000 (13:06 -0400)
committerSimon Marchi <simon.marchi@efficios.com>
Wed, 4 Sep 2024 19:05:14 +0000 (15:05 -0400)
Change-Id: Iecc2fcb29c0b2f4405739c9e0964094ebdf8886d
Signed-off-by: Simon Marchi <simon.marchi@efficios.com>
Reviewed-on: https://review.lttng.org/c/babeltrace/+/12832
Tested-by: jenkins <jenkins@lttng.org>
Reviewed-by: Philippe Proulx <eeppeliteloop@gmail.com>
tests/lib/Makefile.am
tests/lib/test-plugins.c [deleted file]
tests/lib/test-plugins.cpp [new file with mode: 0644]

index ccc7519b847941d10548e550f5380bdf750fe2ea..b8c0ef21d01770d1e8c710e287951bb480f978e4 100644 (file)
@@ -70,7 +70,7 @@ if !ENABLE_BUILT_IN_PLUGINS
 # test-plugins
 
 noinst_PROGRAMS += test-plugins
-test_plugins_SOURCES = test-plugins.c
+test_plugins_SOURCES = test-plugins.cpp
 test_plugins_LDADD = \
        $(COMMON_TEST_LDADD) \
        $(top_builddir)/src/lib/libbabeltrace2.la
diff --git a/tests/lib/test-plugins.c b/tests/lib/test-plugins.c
deleted file mode 100644 (file)
index 7e3c3e7..0000000
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * SPDX-License-Identifier: GPL-2.0-only
- *
- * Copyright (C) 2017 Philippe Proulx <pproulx@efficios.com>
- */
-
-#include <babeltrace2/babeltrace.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include "common/assert.h"
-#include <glib.h>
-#include "tap/tap.h"
-#include "common.h"
-
-#define NR_TESTS               38
-#define NON_EXISTING_PATH      "/this/hopefully/does/not/exist/5bc75f8d-0dba-4043-a509-d7984b97e42b.so"
-
-/* Those symbols are written to by some test plugins */
-static int check_env_var(const char *name)
-{
-       const char *val = getenv(name);
-
-       if (!val) {
-               return -1;
-       }
-
-       return atoi(val);
-}
-
-static void reset_test_plugin_env_vars(void)
-{
-       g_setenv("BT_TEST_PLUGIN_INITIALIZE_CALLED", "0", 1);
-       g_setenv("BT_TEST_PLUGIN_FINALIZE_CALLED", "0", 1);
-}
-
-static char *get_test_plugin_path(const char *plugin_dir,
-               const char *plugin_name)
-{
-       char *ret;
-       char *plugin_file_name;
-
-       if (asprintf(&plugin_file_name, "plugin-%s." G_MODULE_SUFFIX,
-                       plugin_name) == -1) {
-               abort();
-       }
-
-       ret = g_build_filename(plugin_dir, plugin_file_name, NULL);
-       free(plugin_file_name);
-
-       return ret;
-}
-
-static void test_minimal(const char *plugin_dir)
-{
-       const bt_plugin_set *plugin_set = NULL;
-       const bt_plugin *plugin;
-       char *minimal_path = get_test_plugin_path(plugin_dir, "minimal");
-       bt_plugin_find_all_from_file_status status;
-
-       BT_ASSERT(minimal_path);
-       diag("minimal plugin test below");
-
-       reset_test_plugin_env_vars();
-       status = bt_plugin_find_all_from_file(minimal_path, BT_FALSE,
-               &plugin_set);
-       ok(status == BT_PLUGIN_FIND_ALL_FROM_FILE_STATUS_OK,
-               "bt_plugin_find_all_from_file() succeeds with a valid file");
-       ok(plugin_set,
-               "bt_plugin_find_all_from_file() returns a plugin set");
-       ok(check_env_var("BT_TEST_PLUGIN_INITIALIZE_CALLED") == 1,
-               "plugin's initialization function is called during bt_plugin_find_all_from_file()");
-       ok(bt_plugin_set_get_plugin_count(plugin_set) == 1,
-               "bt_plugin_find_all_from_file() returns the expected number of plugins");
-       plugin = bt_plugin_set_borrow_plugin_by_index_const(plugin_set, 0);
-       ok(strcmp(bt_plugin_get_name(plugin), "test_minimal") == 0,
-               "bt_plugin_get_name() returns the expected name");
-       ok(strcmp(bt_plugin_get_description(plugin),
-               "Minimal Babeltrace plugin with no component classes") == 0,
-               "bt_plugin_get_description() returns the expected description");
-       ok(bt_plugin_get_version(plugin, NULL, NULL, NULL, NULL) ==
-               BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE,
-               "bt_plugin_get_version() fails when there's no version");
-       ok(strcmp(bt_plugin_get_author(plugin), "Janine Sutto") == 0,
-               "bt_plugin_get_author() returns the expected author");
-       ok(strcmp(bt_plugin_get_license(plugin), "Beerware") == 0,
-               "bt_plugin_get_license() returns the expected license");
-       ok(strcmp(bt_plugin_get_path(plugin), minimal_path) == 0,
-               "bt_plugin_get_path() returns the expected path");
-       ok(bt_plugin_get_source_component_class_count(plugin) == 0,
-               "bt_plugin_get_source_component_class_count() returns the expected value");
-       ok(bt_plugin_get_filter_component_class_count(plugin) == 0,
-               "bt_plugin_get_filter_component_class_count() returns the expected value");
-       ok(bt_plugin_get_sink_component_class_count(plugin) == 0,
-               "bt_plugin_get_sink_component_class_count() returns the expected value");
-       bt_plugin_set_put_ref(plugin_set);
-       ok(check_env_var("BT_TEST_PLUGIN_FINALIZE_CALLED") == 1,
-               "plugin's finalize function is called when the plugin is destroyed");
-
-       free(minimal_path);
-}
-
-static void test_sfs(const char *plugin_dir)
-{
-       const bt_plugin_set *plugin_set = NULL;
-       const bt_plugin *plugin;
-       const bt_component_class_sink *sink_comp_class;
-       const bt_component_class_source *source_comp_class;
-       const bt_component_class_filter *filter_comp_class;
-       const bt_component_sink *sink_component;
-       char *sfs_path = get_test_plugin_path(plugin_dir, "sfs");
-       unsigned int major, minor, patch;
-       const char *extra;
-       bt_value *params;
-       const bt_value *results;
-       const bt_value *object;
-       const bt_value *res_params;
-       bt_graph *graph;
-       const char *object_str;
-       bt_graph_add_component_status graph_ret;
-       bt_query_executor *query_exec;
-       int ret;
-       bt_plugin_find_all_from_file_status status;
-
-       BT_ASSERT(sfs_path);
-       diag("sfs plugin test below");
-
-       status = bt_plugin_find_all_from_file(sfs_path, BT_FALSE, &plugin_set);
-       BT_ASSERT(status == BT_PLUGIN_FIND_ALL_FROM_FILE_STATUS_OK &&
-               plugin_set && bt_plugin_set_get_plugin_count(plugin_set) == 1);
-       plugin = bt_plugin_set_borrow_plugin_by_index_const(plugin_set, 0);
-       ok(bt_plugin_get_version(plugin, &major, &minor, &patch, &extra) ==
-               BT_PROPERTY_AVAILABILITY_AVAILABLE,
-               "bt_plugin_get_version() succeeds when there's a version");
-       ok(major == 1,
-               "bt_plugin_get_version() returns the expected major version");
-       ok(minor == 2,
-               "bt_plugin_get_version() returns the expected minor version");
-       ok(patch == 3,
-               "bt_plugin_get_version() returns the expected patch version");
-       ok(strcmp(extra, "yes") == 0,
-               "bt_plugin_get_version() returns the expected extra version");
-       ok(bt_plugin_get_source_component_class_count(plugin) == 1,
-               "bt_plugin_get_source_component_class_count() returns the expected value");
-       ok(bt_plugin_get_filter_component_class_count(plugin) == 1,
-               "bt_plugin_get_filter_component_class_count() returns the expected value");
-       ok(bt_plugin_get_sink_component_class_count(plugin) == 1,
-               "bt_plugin_get_sink_component_class_count() returns the expected value");
-
-       source_comp_class = bt_plugin_borrow_source_component_class_by_name_const(
-               plugin, "source");
-       ok(source_comp_class,
-               "bt_plugin_borrow_source_component_class_by_name_const() finds a source component class");
-
-       sink_comp_class = bt_plugin_borrow_sink_component_class_by_name_const(
-               plugin, "sink");
-       ok(sink_comp_class,
-               "bt_plugin_borrow_sink_component_class_by_name_const() finds a sink component class");
-       ok(strcmp(bt_component_class_get_help(bt_component_class_sink_as_component_class_const(sink_comp_class)),
-                 "Bacon ipsum dolor amet strip steak cupim pastrami venison shoulder.\n"
-                 "Prosciutto beef ribs flank meatloaf pancetta brisket kielbasa drumstick\n"
-                 "venison tenderloin cow tail. Beef short loin shoulder meatball, sirloin\n"
-                 "ground round brisket salami cupim pork bresaola turkey bacon boudin.\n") == 0,
-               "bt_component_class_get_help() returns the expected help text");
-
-       filter_comp_class = bt_plugin_borrow_filter_component_class_by_name_const(
-               plugin, "filter");
-       ok(filter_comp_class,
-               "bt_plugin_borrow_filter_component_class_by_name_const() finds a filter component class");
-       params = bt_value_integer_signed_create_init(23);
-       BT_ASSERT(params);
-       query_exec = bt_query_executor_create(
-               bt_component_class_filter_as_component_class_const(
-                       filter_comp_class), "get-something", params);
-       BT_ASSERT(query_exec);
-       ret = bt_query_executor_query(query_exec, &results);
-       ok(ret == 0 && results, "bt_query_executor_query() succeeds");
-       BT_ASSERT(bt_value_is_array(results) && bt_value_array_get_length(results) == 2);
-       object = bt_value_array_borrow_element_by_index_const(results, 0);
-       BT_ASSERT(bt_value_is_string(object));
-       object_str = bt_value_string_get(object);
-       ok(strcmp(object_str, "get-something") == 0,
-               "bt_component_class_query() receives the expected object name");
-       res_params = bt_value_array_borrow_element_by_index_const(results, 1);
-       ok(bt_value_is_equal(res_params, params),
-               "bt_component_class_query() receives the expected parameters");
-
-       bt_component_class_sink_get_ref(sink_comp_class);
-       BT_PLUGIN_SET_PUT_REF_AND_RESET(plugin_set);
-       graph = bt_graph_create(0);
-       BT_ASSERT(graph);
-       graph_ret = bt_graph_add_sink_component(graph, sink_comp_class,
-               "the-sink", NULL, BT_LOGGING_LEVEL_NONE, &sink_component);
-       ok(graph_ret == BT_GRAPH_ADD_COMPONENT_STATUS_OK && sink_component,
-               "bt_graph_add_sink_component() still works after the plugin object is destroyed");
-       bt_graph_put_ref(graph);
-
-       free(sfs_path);
-       bt_component_class_sink_put_ref(sink_comp_class);
-       bt_value_put_ref(results);
-       bt_value_put_ref(params);
-       bt_query_executor_put_ref(query_exec);
-}
-
-static void test_create_all_from_dir(const char *plugin_dir)
-{
-       const bt_plugin_set *plugin_set;
-       bt_plugin_find_all_from_dir_status status;
-
-       diag("create from all test below");
-
-       status = bt_plugin_find_all_from_dir(NON_EXISTING_PATH, BT_FALSE,
-               BT_FALSE, &plugin_set);
-       ok(status == BT_PLUGIN_FIND_ALL_FROM_DIR_STATUS_ERROR,
-               "bt_plugin_find_all_from_dir() fails with an invalid path");
-       bt_current_thread_clear_error();
-
-       plugin_set = NULL;
-       status = bt_plugin_find_all_from_dir(plugin_dir, BT_FALSE, BT_FALSE,
-               &plugin_set);
-       ok(status == BT_PLUGIN_FIND_ALL_FROM_DIR_STATUS_OK,
-               "bt_plugin_find_all_from_dir() succeeds with a valid path");
-       ok(plugin_set,
-               "bt_plugin_find_all_from_dir() returns a plugin set with a valid path");
-
-       /* 2 or 4, if `.la` files are considered or not */
-       ok(bt_plugin_set_get_plugin_count(plugin_set) == 2 ||
-               bt_plugin_set_get_plugin_count(plugin_set) == 4,
-               "bt_plugin_find_all_from_dir() returns the expected number of plugin objects");
-
-       bt_plugin_set_put_ref(plugin_set);
-}
-
-static void test_find(const char *plugin_dir)
-{
-       int ret;
-       const bt_plugin *plugin;
-       char *plugin_path;
-       bt_plugin_find_status status;
-
-       ok(bt_plugin_find(NON_EXISTING_PATH, BT_TRUE, BT_FALSE, BT_FALSE,
-               BT_FALSE, BT_FALSE, &plugin) == BT_PLUGIN_FIND_STATUS_NOT_FOUND,
-               "bt_plugin_find() returns BT_PLUGIN_STATUS_NOT_FOUND with an unknown plugin name");
-       ret = asprintf(&plugin_path, "%s" G_SEARCHPATH_SEPARATOR_S
-                       G_DIR_SEPARATOR_S "ec1d09e5-696c-442e-b1c3-f9c6cf7f5958"
-                       G_SEARCHPATH_SEPARATOR_S G_SEARCHPATH_SEPARATOR_S
-                       G_SEARCHPATH_SEPARATOR_S "%s" G_SEARCHPATH_SEPARATOR_S
-                       "8db46494-a398-466a-9649-c765ae077629"
-                       G_SEARCHPATH_SEPARATOR_S,
-               NON_EXISTING_PATH, plugin_dir);
-       BT_ASSERT(ret > 0 && plugin_path);
-       g_setenv("BABELTRACE_PLUGIN_PATH", plugin_path, 1);
-       plugin = NULL;
-       status = bt_plugin_find("test_minimal", BT_TRUE, BT_FALSE, BT_FALSE,
-               BT_FALSE, BT_FALSE, &plugin);
-       ok(status == BT_PLUGIN_FIND_STATUS_OK,
-               "bt_plugin_find() succeeds with a plugin name it can find");
-       ok(plugin, "bt_plugin_find() returns a plugin object");
-       ok(strcmp(bt_plugin_get_author(plugin), "Janine Sutto") == 0,
-               "bt_plugin_find() finds the correct plugin for a given name");
-       BT_PLUGIN_PUT_REF_AND_RESET(plugin);
-       free(plugin_path);
-}
-
-int main(int argc, char **argv)
-{
-       int ret;
-       const char *plugin_dir;
-
-       if (argc != 2) {
-               puts("Usage: test_plugin plugin_directory");
-               ret = 1;
-               goto end;
-       }
-
-       plugin_dir = argv[1];
-       plan_tests(NR_TESTS);
-       test_minimal(plugin_dir);
-       test_sfs(plugin_dir);
-       test_create_all_from_dir(plugin_dir);
-       test_find(plugin_dir);
-       ret = exit_status();
-end:
-       return ret;
-}
diff --git a/tests/lib/test-plugins.cpp b/tests/lib/test-plugins.cpp
new file mode 100644 (file)
index 0000000..4e724da
--- /dev/null
@@ -0,0 +1,276 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ * Copyright (C) 2017 Philippe Proulx <pproulx@efficios.com>
+ */
+
+#include <glib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <babeltrace2/babeltrace.h>
+
+#include "common/assert.h"
+
+#include "common.h"
+
+#include "tap/tap.h"
+
+#define NR_TESTS          38
+#define NON_EXISTING_PATH "/this/hopefully/does/not/exist/5bc75f8d-0dba-4043-a509-d7984b97e42b.so"
+
+/* Those symbols are written to by some test plugins */
+static int check_env_var(const char *name)
+{
+    const char *val = getenv(name);
+
+    if (!val) {
+        return -1;
+    }
+
+    return atoi(val);
+}
+
+static void reset_test_plugin_env_vars(void)
+{
+    g_setenv("BT_TEST_PLUGIN_INITIALIZE_CALLED", "0", 1);
+    g_setenv("BT_TEST_PLUGIN_FINALIZE_CALLED", "0", 1);
+}
+
+static char *get_test_plugin_path(const char *plugin_dir, const char *plugin_name)
+{
+    char *ret;
+    char *plugin_file_name;
+
+    if (asprintf(&plugin_file_name, "plugin-%s." G_MODULE_SUFFIX, plugin_name) == -1) {
+        abort();
+    }
+
+    ret = g_build_filename(plugin_dir, plugin_file_name, NULL);
+    free(plugin_file_name);
+
+    return ret;
+}
+
+static void test_minimal(const char *plugin_dir)
+{
+    const bt_plugin_set *plugin_set = NULL;
+    const bt_plugin *plugin;
+    char *minimal_path = get_test_plugin_path(plugin_dir, "minimal");
+    bt_plugin_find_all_from_file_status status;
+
+    BT_ASSERT(minimal_path);
+    diag("minimal plugin test below");
+
+    reset_test_plugin_env_vars();
+    status = bt_plugin_find_all_from_file(minimal_path, BT_FALSE, &plugin_set);
+    ok(status == BT_PLUGIN_FIND_ALL_FROM_FILE_STATUS_OK,
+       "bt_plugin_find_all_from_file() succeeds with a valid file");
+    ok(plugin_set, "bt_plugin_find_all_from_file() returns a plugin set");
+    ok(check_env_var("BT_TEST_PLUGIN_INITIALIZE_CALLED") == 1,
+       "plugin's initialization function is called during bt_plugin_find_all_from_file()");
+    ok(bt_plugin_set_get_plugin_count(plugin_set) == 1,
+       "bt_plugin_find_all_from_file() returns the expected number of plugins");
+    plugin = bt_plugin_set_borrow_plugin_by_index_const(plugin_set, 0);
+    ok(strcmp(bt_plugin_get_name(plugin), "test_minimal") == 0,
+       "bt_plugin_get_name() returns the expected name");
+    ok(strcmp(bt_plugin_get_description(plugin),
+              "Minimal Babeltrace plugin with no component classes") == 0,
+       "bt_plugin_get_description() returns the expected description");
+    ok(bt_plugin_get_version(plugin, NULL, NULL, NULL, NULL) ==
+           BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE,
+       "bt_plugin_get_version() fails when there's no version");
+    ok(strcmp(bt_plugin_get_author(plugin), "Janine Sutto") == 0,
+       "bt_plugin_get_author() returns the expected author");
+    ok(strcmp(bt_plugin_get_license(plugin), "Beerware") == 0,
+       "bt_plugin_get_license() returns the expected license");
+    ok(strcmp(bt_plugin_get_path(plugin), minimal_path) == 0,
+       "bt_plugin_get_path() returns the expected path");
+    ok(bt_plugin_get_source_component_class_count(plugin) == 0,
+       "bt_plugin_get_source_component_class_count() returns the expected value");
+    ok(bt_plugin_get_filter_component_class_count(plugin) == 0,
+       "bt_plugin_get_filter_component_class_count() returns the expected value");
+    ok(bt_plugin_get_sink_component_class_count(plugin) == 0,
+       "bt_plugin_get_sink_component_class_count() returns the expected value");
+    bt_plugin_set_put_ref(plugin_set);
+    ok(check_env_var("BT_TEST_PLUGIN_FINALIZE_CALLED") == 1,
+       "plugin's finalize function is called when the plugin is destroyed");
+
+    free(minimal_path);
+}
+
+static void test_sfs(const char *plugin_dir)
+{
+    const bt_plugin_set *plugin_set = NULL;
+    const bt_plugin *plugin;
+    const bt_component_class_sink *sink_comp_class;
+    const bt_component_class_source *source_comp_class;
+    const bt_component_class_filter *filter_comp_class;
+    const bt_component_sink *sink_component;
+    char *sfs_path = get_test_plugin_path(plugin_dir, "sfs");
+    unsigned int major, minor, patch;
+    const char *extra;
+    bt_value *params;
+    const bt_value *results;
+    const bt_value *object;
+    const bt_value *res_params;
+    bt_graph *graph;
+    const char *object_str;
+    bt_graph_add_component_status graph_ret;
+    bt_query_executor *query_exec;
+    int ret;
+    bt_plugin_find_all_from_file_status status;
+
+    BT_ASSERT(sfs_path);
+    diag("sfs plugin test below");
+
+    status = bt_plugin_find_all_from_file(sfs_path, BT_FALSE, &plugin_set);
+    BT_ASSERT(status == BT_PLUGIN_FIND_ALL_FROM_FILE_STATUS_OK && plugin_set &&
+              bt_plugin_set_get_plugin_count(plugin_set) == 1);
+    plugin = bt_plugin_set_borrow_plugin_by_index_const(plugin_set, 0);
+    ok(bt_plugin_get_version(plugin, &major, &minor, &patch, &extra) ==
+           BT_PROPERTY_AVAILABILITY_AVAILABLE,
+       "bt_plugin_get_version() succeeds when there's a version");
+    ok(major == 1, "bt_plugin_get_version() returns the expected major version");
+    ok(minor == 2, "bt_plugin_get_version() returns the expected minor version");
+    ok(patch == 3, "bt_plugin_get_version() returns the expected patch version");
+    ok(strcmp(extra, "yes") == 0, "bt_plugin_get_version() returns the expected extra version");
+    ok(bt_plugin_get_source_component_class_count(plugin) == 1,
+       "bt_plugin_get_source_component_class_count() returns the expected value");
+    ok(bt_plugin_get_filter_component_class_count(plugin) == 1,
+       "bt_plugin_get_filter_component_class_count() returns the expected value");
+    ok(bt_plugin_get_sink_component_class_count(plugin) == 1,
+       "bt_plugin_get_sink_component_class_count() returns the expected value");
+
+    source_comp_class = bt_plugin_borrow_source_component_class_by_name_const(plugin, "source");
+    ok(source_comp_class,
+       "bt_plugin_borrow_source_component_class_by_name_const() finds a source component class");
+
+    sink_comp_class = bt_plugin_borrow_sink_component_class_by_name_const(plugin, "sink");
+    ok(sink_comp_class,
+       "bt_plugin_borrow_sink_component_class_by_name_const() finds a sink component class");
+    ok(strcmp(bt_component_class_get_help(
+                  bt_component_class_sink_as_component_class_const(sink_comp_class)),
+              "Bacon ipsum dolor amet strip steak cupim pastrami venison shoulder.\n"
+              "Prosciutto beef ribs flank meatloaf pancetta brisket kielbasa drumstick\n"
+              "venison tenderloin cow tail. Beef short loin shoulder meatball, sirloin\n"
+              "ground round brisket salami cupim pork bresaola turkey bacon boudin.\n") == 0,
+       "bt_component_class_get_help() returns the expected help text");
+
+    filter_comp_class = bt_plugin_borrow_filter_component_class_by_name_const(plugin, "filter");
+    ok(filter_comp_class,
+       "bt_plugin_borrow_filter_component_class_by_name_const() finds a filter component class");
+    params = bt_value_integer_signed_create_init(23);
+    BT_ASSERT(params);
+    query_exec = bt_query_executor_create(
+        bt_component_class_filter_as_component_class_const(filter_comp_class), "get-something",
+        params);
+    BT_ASSERT(query_exec);
+    ret = bt_query_executor_query(query_exec, &results);
+    ok(ret == 0 && results, "bt_query_executor_query() succeeds");
+    BT_ASSERT(bt_value_is_array(results) && bt_value_array_get_length(results) == 2);
+    object = bt_value_array_borrow_element_by_index_const(results, 0);
+    BT_ASSERT(bt_value_is_string(object));
+    object_str = bt_value_string_get(object);
+    ok(strcmp(object_str, "get-something") == 0,
+       "bt_component_class_query() receives the expected object name");
+    res_params = bt_value_array_borrow_element_by_index_const(results, 1);
+    ok(bt_value_is_equal(res_params, params),
+       "bt_component_class_query() receives the expected parameters");
+
+    bt_component_class_sink_get_ref(sink_comp_class);
+    BT_PLUGIN_SET_PUT_REF_AND_RESET(plugin_set);
+    graph = bt_graph_create(0);
+    BT_ASSERT(graph);
+    graph_ret = bt_graph_add_sink_component(graph, sink_comp_class, "the-sink", NULL,
+                                            BT_LOGGING_LEVEL_NONE, &sink_component);
+    ok(graph_ret == BT_GRAPH_ADD_COMPONENT_STATUS_OK && sink_component,
+       "bt_graph_add_sink_component() still works after the plugin object is destroyed");
+    bt_graph_put_ref(graph);
+
+    free(sfs_path);
+    bt_component_class_sink_put_ref(sink_comp_class);
+    bt_value_put_ref(results);
+    bt_value_put_ref(params);
+    bt_query_executor_put_ref(query_exec);
+}
+
+static void test_create_all_from_dir(const char *plugin_dir)
+{
+    const bt_plugin_set *plugin_set;
+    bt_plugin_find_all_from_dir_status status;
+
+    diag("create from all test below");
+
+    status = bt_plugin_find_all_from_dir(NON_EXISTING_PATH, BT_FALSE, BT_FALSE, &plugin_set);
+    ok(status == BT_PLUGIN_FIND_ALL_FROM_DIR_STATUS_ERROR,
+       "bt_plugin_find_all_from_dir() fails with an invalid path");
+    bt_current_thread_clear_error();
+
+    plugin_set = NULL;
+    status = bt_plugin_find_all_from_dir(plugin_dir, BT_FALSE, BT_FALSE, &plugin_set);
+    ok(status == BT_PLUGIN_FIND_ALL_FROM_DIR_STATUS_OK,
+       "bt_plugin_find_all_from_dir() succeeds with a valid path");
+    ok(plugin_set, "bt_plugin_find_all_from_dir() returns a plugin set with a valid path");
+
+    /* 2 or 4, if `.la` files are considered or not */
+    ok(bt_plugin_set_get_plugin_count(plugin_set) == 2 ||
+           bt_plugin_set_get_plugin_count(plugin_set) == 4,
+       "bt_plugin_find_all_from_dir() returns the expected number of plugin objects");
+
+    bt_plugin_set_put_ref(plugin_set);
+}
+
+static void test_find(const char *plugin_dir)
+{
+    int ret;
+    const bt_plugin *plugin;
+    char *plugin_path;
+    bt_plugin_find_status status;
+
+    ok(bt_plugin_find(NON_EXISTING_PATH, BT_TRUE, BT_FALSE, BT_FALSE, BT_FALSE, BT_FALSE,
+                      &plugin) == BT_PLUGIN_FIND_STATUS_NOT_FOUND,
+       "bt_plugin_find() returns BT_PLUGIN_STATUS_NOT_FOUND with an unknown plugin name");
+    ret = asprintf(
+        &plugin_path,
+        "%s" G_SEARCHPATH_SEPARATOR_S G_DIR_SEPARATOR_S
+        "ec1d09e5-696c-442e-b1c3-f9c6cf7f5958" G_SEARCHPATH_SEPARATOR_S G_SEARCHPATH_SEPARATOR_S
+            G_SEARCHPATH_SEPARATOR_S "%s" G_SEARCHPATH_SEPARATOR_S
+        "8db46494-a398-466a-9649-c765ae077629" G_SEARCHPATH_SEPARATOR_S,
+        NON_EXISTING_PATH, plugin_dir);
+    BT_ASSERT(ret > 0 && plugin_path);
+    g_setenv("BABELTRACE_PLUGIN_PATH", plugin_path, 1);
+    plugin = NULL;
+    status =
+        bt_plugin_find("test_minimal", BT_TRUE, BT_FALSE, BT_FALSE, BT_FALSE, BT_FALSE, &plugin);
+    ok(status == BT_PLUGIN_FIND_STATUS_OK,
+       "bt_plugin_find() succeeds with a plugin name it can find");
+    ok(plugin, "bt_plugin_find() returns a plugin object");
+    ok(strcmp(bt_plugin_get_author(plugin), "Janine Sutto") == 0,
+       "bt_plugin_find() finds the correct plugin for a given name");
+    BT_PLUGIN_PUT_REF_AND_RESET(plugin);
+    free(plugin_path);
+}
+
+int main(int argc, char **argv)
+{
+    int ret;
+    const char *plugin_dir;
+
+    if (argc != 2) {
+        puts("Usage: test_plugin plugin_directory");
+        ret = 1;
+        goto end;
+    }
+
+    plugin_dir = argv[1];
+    plan_tests(NR_TESTS);
+    test_minimal(plugin_dir);
+    test_sfs(plugin_dir);
+    test_create_all_from_dir(plugin_dir);
+    test_find(plugin_dir);
+    ret = exit_status();
+end:
+    return ret;
+}
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