test: add emqx_connector_SUITE to increase coverage

apps/emqx_connector/test/emqx_connector_SUITE.erl

@@ -0,0 +1,82 @@
+%%--------------------------------------------------------------------
+%% Copyright (c) 2022 EMQ Technologies Co., Ltd. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%--------------------------------------------------------------------
+
+-module(emqx_connector_SUITE).
+
+-compile(nowarn_export_all).
+-compile(export_all).
+
+-include("emqx/include/emqx.hrl").
+-include_lib("eunit/include/eunit.hrl").
+-include_lib("common_test/include/ct.hrl").
+
+-define(BRIDGE_CONF_DEFAULT, <<"bridges: {}">>).
+
+all() ->
+    emqx_common_test_helpers:all(?MODULE).
+
+groups() ->
+    [].
+
+suite() ->
+    [].
+
+init_per_suite(Config) ->
+    _ = application:load(emqx_conf),
+    %% some testcases (may from other app) already get emqx_connector started
+    _ = application:stop(emqx_resource),
+    _ = application:stop(emqx_connector),
+    ok = emqx_common_test_helpers:start_apps(
+        [
+            emqx_connector,
+            emqx_bridge
+        ]
+    ),
+
+    Config.
+
+end_per_suite(_Config) ->
+    emqx_common_test_helpers:stop_apps([
+        emqx_connector,
+        emqx_bridge
+    ]),
+    ok.
+
+init_per_testcase(_, Config) ->
+    Config.
+end_per_testcase(_, _Config) ->
+    ok.
+
+t_list_raw_empty(_) ->
+    Result = emqx_connector:list_raw(),
+    ?assertEqual([], Result).
+
+t_lookup_raw_error(_) ->
+    Result = emqx_connector:lookup_raw(<<"foo:bar">>),
+    ?assertEqual({error, not_found}, Result).
+
+t_parse_connector_id_error(_) ->
+    ?assertError(
+        {invalid_connector_id, <<"foobar">>}, emqx_connector:parse_connector_id(<<"foobar">>)
+    ).
+
+t_update_error(_) ->
+    ?assertException(exit, {noproc, _}, emqx_connector:update(<<"foo:bar">>, #{})).
+
+t_delete_error(_) ->
+    ?assertException(exit, {noproc, _}, emqx_connector:delete(<<"foo:bar">>)).
+
+t_connector_id_using_list(_) ->
+    <<"foo:bar">> = emqx_connector:connector_id("foo", "bar").