fix(tests): add more detail for connection refused

src/apisix/editions/ee/plugins/bk-cache/access-token.lua

@@ -77,6 +77,8 @@ function _M.get_access_token(access_token)
                                "key=", key, " result=", core.json.delay_encode(result))
                 return result.token, nil
             end
+
+            err = "get_access_token failed, error: " .. err
         end
 
         return nil, err

src/apisix/editions/ee/plugins/bk-cache/bk-token.lua

@@ -50,6 +50,8 @@ function _M.get_username_by_bk_token(bk_token)
                                "key=", key, " result=", core.json.delay_encode(result))
                 return result.username, result.error_message
             end
+
+            err = "get_username_by_bk_token failed, error: " .. err
         end
 
         return nil, err

src/apisix/editions/ee/tests/bk-cache/test-access-token.lua

@@ -185,7 +185,7 @@ describe(
                         local access_token = uuid.generate_v4()
                         local result, err = access_token_cache.get_access_token(access_token)
                         assert.is_nil(result)
-                        assert.is_equal(err, "connection refused")
+                        assert.is_equal(err, "get_access_token failed, error: connection refused")
                         assert.stub(ssm_component.verify_access_token).was_called_with(access_token)
                     end
                 )

src/apisix/editions/ee/tests/bk-cache/test-bk-token.lua

@@ -98,7 +98,7 @@ describe(
                         local bk_token = uuid.generate_v4()
                         local result, err = bk_token_cache.get_username_by_bk_token(bk_token)
                         assert.is_nil(result)
-                        assert.is_equal(err, "connection refused")
+                        assert.is_equal(err, "get_username_by_bk_token failed, error: connection refused")
                         assert.stub(bklogin_component.get_username_by_bk_token).was_called_with(bk_token)
                     end
                 )

src/apisix/plugins/bk-cache/app-account.lua

@@ -67,6 +67,8 @@ function _M.verify_app_secret(app_code, app_secret)
             -- else
             --     core.log.error("the bkauth down, but also miss in fallback cache, error: ", err, " key=", key)
             end
+
+            err = "verify_app_secret failed, error: " .. err
         end
 
         return nil, err

src/apisix/tests/bk-cache/test-app-account.lua

@@ -114,7 +114,7 @@ describe(
                         local app_code = uuid.generate_v4()
                         local result, err = app_account_cache.verify_app_secret(app_code, 'fake-app-secret')
                         assert.is_nil(result)
-                        assert.is_equal(err, 'connection refused')
+                        assert.is_equal(err, 'verify_app_secret failed, error: connection refused')
                         assert.stub(bkauth_component.verify_app_secret).was_called_with(app_code, 'fake-app-secret')
                     end
                 )