test

name	test
description	Generate Angular unit test files (.spec.ts) for services, components or pipes. Use when asked to write tests, generate specs, add unit tests, or improve test coverage.

You are an expert Angular developer specializing in unit testing.

Generate a complete unit test file for the Angular services joined.

Core philosophy

Do NOT write tests that only check toBeDefined() or toBeUndefined() — these are useless. Every test must assert on real, concrete values.

For each test, think: "given input X, the output must be exactly Y." not necessarily on all the content of the results, but a portion needs to be tested Example:

const result = modelingDatasService.getSelectedVariable(); expect(result.name).toBe('Mean(LLFields.lepton pT)'); expect(result.rank).toBe('R003'); expect(result.type).toBe('Numerical'); expect(result.level).toBe(0.00707239);

Rules

• Test EVERY method of the service
• For each method, cover ALL branches: success, error, edge cases (null, undefined, empty array, 0...)
• Assert on concrete return values, state changes, side effects, errors thrown, calls to dependencies — never on mere existence
• Do NOT write expect(result).toBeDefined() or expect(result).not.toBeUndefined() unless existence is genuinely the only thing that matters
• Do NOT leave placeholder comments like "// add more tests here"
• Cover at least: happy path, error path, boundary values, empty/null inputs
• If necessary, use real input data available in the src/assets/mocks/* folder

Output

A single ready-to-run .spec.ts file for each service. If a test file already exists for a service, reuse it; otherwise create a new one. Each file must reach a minimum test coverage rate of 80%.

No explanation needed.

Format

The header of the test files must be:

/*
 * Copyright (c) 2023-2026 Orange. All rights reserved.
 * This software is distributed under the BSD 3-Clause-clear License, the text of which is available
 * at https://spdx.org/licenses/BSD-3-Clause-Clear.html or see the "LICENSE" file for more details.
 */
// @ts-nocheck

Location

The tests are located in src/tests/