diff --git a/source/services/member.ts b/source/services/member.ts
index 5525141..b69a279 100644
--- a/source/services/member.ts
+++ b/source/services/member.ts
@@ -30,6 +30,7 @@ namespace _espe.service.member
 	
 	
 	/**
+	 * @todo do not export
 	 */
 	export function validate_password(
 		password : string
@@ -110,7 +111,6 @@ namespace _espe.service.member
 	
 	
 	/**
-	 * @todo test
 	 */
 	export function name_login(
 		object : _espe.type.member_object
@@ -475,12 +475,26 @@ namespace _espe.service.member
 	 * @todo check validity (e.g. username characters)
 	 */
 	export async function export_authelia_user_file(
+		options : {
+			custom_data ?: (null | Array<_espe.type.member_object>);
+		} = {}
 	) : Promise<string>
 	{
+		options = Object.assign(
+			{
+				"custom_data": null,
+			},
+			options
+		);
+		
 		const nm_yaml = require("yaml");
 		
 		return lib_plankton.call.convey(
-			await dump(),
+			(
+				(options.custom_data !== null)
+				? (options.custom_data.map((member_object, index) => ({"id": index, "object": member_object})))
+				: await dump()
+			),
 			[
 				x => x.map(
 					entry => Object.assign(
diff --git a/source/tests.mocha.ts b/source/test/data.json
similarity index 67%
rename from source/tests.mocha.ts
rename to source/test/data.json
index 93b413a..13adc80 100644
--- a/source/tests.mocha.ts
+++ b/source/test/data.json
@@ -1,23 +1,6 @@
-const nm_assert = require("assert");
-
-describe(
-	"member.validate_password",
-	() => {
-		const cases : Array<
-			{
-				name : string;
-				input : {
-					conf : any;
-					password : string;
-				};
-				output : Array<
-					{
-						incident : string;
-						details : Record<string, any>;
-					}
-				>;
-			}
-		> = [
+{
+	"service.member.validate_password": {
+		"cases": [
 			{
 				"name": "minimum_length:pass",
 				"input": {
@@ -28,7 +11,7 @@ describe(
 								"maximum_length": null,
 								"must_contain_letter": false,
 								"must_contain_number": false,
-								"must_contain_special_character": false,
+								"must_contain_special_character": false
 							}
 						}
 					},
@@ -38,7 +21,7 @@ describe(
 				]
 			},
 			{
-				"name": "minimum_lengt:fail",
+				"name": "minimum_length:fail",
 				"input": {
 					"conf": {
 						"settings": {
@@ -47,7 +30,7 @@ describe(
 								"maximum_length": null,
 								"must_contain_letter": false,
 								"must_contain_number": false,
-								"must_contain_special_character": false,
+								"must_contain_special_character": false
 							}
 						}
 					},
@@ -73,7 +56,7 @@ describe(
 								"maximum_length": 5,
 								"must_contain_letter": false,
 								"must_contain_number": false,
-								"must_contain_special_character": false,
+								"must_contain_special_character": false
 							}
 						}
 					},
@@ -92,7 +75,7 @@ describe(
 								"maximum_length": 5,
 								"must_contain_letter": false,
 								"must_contain_number": false,
-								"must_contain_special_character": false,
+								"must_contain_special_character": false
 							}
 						}
 					},
@@ -118,7 +101,7 @@ describe(
 								"maximum_length": null,
 								"must_contain_letter": true,
 								"must_contain_number": false,
-								"must_contain_special_character": false,
+								"must_contain_special_character": false
 							}
 						}
 					},
@@ -137,7 +120,7 @@ describe(
 								"maximum_length": null,
 								"must_contain_letter": true,
 								"must_contain_number": false,
-								"must_contain_special_character": false,
+								"must_contain_special_character": false
 							}
 						}
 					},
@@ -161,7 +144,7 @@ describe(
 								"maximum_length": null,
 								"must_contain_letter": false,
 								"must_contain_number": true,
-								"must_contain_special_character": false,
+								"must_contain_special_character": false
 							}
 						}
 					},
@@ -180,7 +163,7 @@ describe(
 								"maximum_length": null,
 								"must_contain_letter": false,
 								"must_contain_number": true,
-								"must_contain_special_character": false,
+								"must_contain_special_character": false
 							}
 						}
 					},
@@ -204,7 +187,7 @@ describe(
 								"maximum_length": null,
 								"must_contain_letter": false,
 								"must_contain_number": false,
-								"must_contain_special_character": true,
+								"must_contain_special_character": true
 							}
 						}
 					},
@@ -223,7 +206,7 @@ describe(
 								"maximum_length": null,
 								"must_contain_letter": false,
 								"must_contain_number": false,
-								"must_contain_special_character": true,
+								"must_contain_special_character": true
 							}
 						}
 					},
@@ -247,7 +230,7 @@ describe(
 								"maximum_length": 12,
 								"must_contain_letter": true,
 								"must_contain_number": true,
-								"must_contain_special_character": true,
+								"must_contain_special_character": true
 							}
 						}
 					},
@@ -255,24 +238,66 @@ describe(
 				},
 				"output": [
 				]
-			},
-		];
-		cases.forEach(
-			case_ => {
-				it(
-					case_.name,
-					() => {
-						_espe.conf.inject(case_.input.conf);
-						const result : Array<
-							{
-								incident : string;
-								details : Record<string, any>;
-							}
-						> = _espe.service.member.validate_password(case_.input.password);
-						nm_assert.deepEqual(result, case_.output);
-					}
-				);
 			}
-		);
+		]
+	},
+	"service.member.name_login": {
+		"cases": [
+			{
+				"name": "extension:first",
+				"input": {
+					"name_real_value": "Hans Wurst",
+					"name_real_index": 1
+				},
+				"output": "hans.wurst"
+			},
+			{
+				"name": "extension:other",
+				"input": {
+					"name_real_value": "Hans Wurst",
+					"name_real_index": 3
+				},
+				"output": "hans.wurst.3"
+			},
+			{
+				"name": "oblique",
+				"input": {
+					"name_real_value": "Käthĕ Gauß-Öhler",
+					"name_real_index": 2
+				},
+				"output": "kaeth_.gauss-oehler.2"
+			}
+		]
+	},
+	"service.member.export_authelia_user_file": {
+		"cases": [
+			{
+				"name": "oblique",
+				"input": {
+					"conf": {
+						"settings": {
+							"target_domain": "testdomain.org",
+							"prefix_for_numberbased_email_addresses": "wicht-"
+						}
+					},
+					"members": [
+						{
+							"membership_number": "1234567",
+							"name_real_value": "Karl Liebknecht",
+							"name_real_index": 1,
+							"email_address_private": "karl@l-haus.de",
+							"registered": true,
+							"enabled": true,
+							"email_use_veiled_address": true,
+							"email_use_nominal_address": false,
+							"email_redirect_to_private_address": true,
+							"email_allow_sending": false,
+							"password_image": "foobar"
+						}
+					]
+				},
+				"output": "users:\n  karl.liebknecht:\n    disabled: false\n    displayname: Karl Liebknecht\n    email: wicht-1234567@testdomain.org\n    groups: []\n    password: foobar\n"
+			}
+		]
 	}
-);
+}
diff --git a/source/test/main.mocha.ts b/source/test/main.mocha.ts
new file mode 100644
index 0000000..aef723d
--- /dev/null
+++ b/source/test/main.mocha.ts
@@ -0,0 +1,162 @@
+const nm_fs = require("fs");
+const nm_assert = require("assert");
+
+type type_test_section = {
+	cases : Array<any>;
+};
+
+const _data : Record<string, type_test_section> = lib_plankton.json.decode(nm_fs.readFileSync("test-data.json"));
+
+
+describe(
+	"service.member.validate_password",
+	() => {
+		const data : {
+			cases : Array<
+				{
+					name : string;
+					input : {
+						conf : any;
+						password : string;
+					};
+					output : Array<
+						{
+							incident : string;
+							details : Record<string, any>;
+						}
+					>;
+				}
+			>;
+		} = _data["service.member.validate_password"];
+		data.cases.forEach(
+			case_ => {
+				it(
+					case_.name,
+					() => {
+						_espe.conf.inject(case_.input.conf);
+						const result : Array<
+							{
+								incident : string;
+								details : Record<string, any>;
+							}
+						> = _espe.service.member.validate_password(case_.input.password);
+						nm_assert.deepEqual(result, case_.output);
+						_espe.conf.inject({});
+					}
+				);
+			}
+		);
+	}
+);
+describe(
+	"service.member.name_login",
+	() => {
+		const data : {
+			cases : Array<
+				{
+					name : string;
+					input : {
+						name_real_value : string;
+						name_real_index : int;
+					};
+					output : string;
+				}
+			>;
+		} = _data["service.member.name_login"];
+		data.cases.forEach(
+			case_ => {
+				it(
+					case_.name,
+					() => {
+						const member_object : _espe.type.member_object = {
+							"membership_number": "",
+							"name_real_value": case_.input.name_real_value,
+							"name_real_index": case_.input.name_real_index,
+							"email_address_private": "",
+							"registered": false,
+							"enabled": false,
+							"email_use_veiled_address": false,
+							"email_use_nominal_address": false,
+							"email_redirect_to_private_address": false,
+							"email_allow_sending": false,
+							"password_image": null,
+						};
+						const result : string = _espe.service.member.name_login(member_object);
+						nm_assert.equal(result, case_.output);
+					}
+				);
+			}
+		);
+	}
+);
+describe(
+	"service.member.export_authelia_user_file",
+	() => {
+		const data : {
+			cases : Array<
+				{
+					name : string;
+					input : {
+						conf : any;
+						members : Array<
+							{
+								membership_number : string;
+								name_real_value : string;
+								name_real_index : int;
+								email_address_private : (null | string);
+								registered : boolean;
+								enabled : boolean;
+								email_use_veiled_address : boolean;
+								email_use_nominal_address : boolean;
+								email_redirect_to_private_address : boolean;
+								email_allow_sending : boolean;
+								password_image : (null | string);
+							}
+						>;
+					};
+					output : string;
+				}
+			>;
+		} = _data["service.member.export_authelia_user_file"];
+		data.cases.forEach(
+			case_ => {
+				it(
+					case_.name,
+					async () => {
+						// setup
+						_espe.conf.inject(case_.input.conf);
+						
+						// execution
+						const result : string = await _espe.service.member.export_authelia_user_file(
+							{
+								"custom_data": case_.input.members.map(
+									member_raw => (
+										{
+											"membership_number": member_raw.membership_number,
+											"name_real_value": member_raw.name_real_value,
+											"name_real_index": member_raw.name_real_index,
+											"email_address_private": member_raw.email_address_private,
+											"registered": member_raw.registered,
+											"enabled": member_raw.enabled,
+											"email_use_veiled_address": member_raw.email_use_veiled_address,
+											"email_use_nominal_address": member_raw.email_use_nominal_address,
+											"email_redirect_to_private_address": member_raw.email_redirect_to_private_address,
+											"email_allow_sending": member_raw.email_allow_sending,
+											"password_image": member_raw.password_image,
+										}
+									)
+								),
+							}
+						);
+						
+						// assertions
+						nm_assert.equal(result, case_.output);
+						
+						// cleanup
+						_espe.conf.inject({});
+					}
+				);
+			}
+		);
+	}
+);
diff --git a/tools/makefile b/tools/makefile
index afd39f6..2c83ddc 100644
--- a/tools/makefile
+++ b/tools/makefile
@@ -74,13 +74,19 @@ ${dir_build}/espe: \
 	@ ${cmd_chmod} +x $@
 
 .PHONY: test
-test: core ${dir_build}/espe-test.mocha.js
+test: core ${dir_build}/test-data.json ${dir_build}/espe-test.mocha.js
+
+${dir_build}/test-data.json: \
+		${dir_source}/test/data.json
+	@ ${cmd_log} "test | copy data …"
+	@ ${cmd_mkdir} $(dir $@)
+	@ ${cmd_cp} -r -u -v $^ $@
 
 ${dir_temp}/espe-test-raw.js: \
 		${dir_lib}/plankton/plankton.d.ts \
 		${dir_temp}/espe-core.d.ts \
 		${dir_lib}/node/node_modules/@types/mocha/index.d.ts \
-		${dir_source}/tests.mocha.ts
+		${dir_source}/test/main.mocha.ts
 	@ ${cmd_log} "compile | test …"
 	@ ${cmd_mkdir} $(dir $@)
 	@ tsc --lib es2020 $^ --outFile $@
diff --git a/tools/test b/tools/test
index 24181cd..1c8959e 100755
--- a/tools/test
+++ b/tools/test
@@ -1,4 +1,8 @@
 #!/usr/bin/env sh
 
-tools/build -t
-mocha build/espe-test.mocha.js
+output_directory="/tmp/espe-test"
+
+tools/build --tests --output-directory=${output_directory}
+cd ${output_directory}
+mocha espe-test.mocha.js
+cd -