write guest route test for GET /donations/report

[mirmahathir1]

Implement this test in report.test.js when you are done implementing the following issue
Badhan-BUET-Zone/badhan-backend#31

You can find a similar guest route testing implementation below:

badhan-test/tests/users/password.test.js

Lines 42 to 50 in d74077e

	test('PATCH/guest/users/password', async () => {
	try {
	let passwordResponse = await badhanAxios.patch("/guest/users/password");
	let validationResult = validate(passwordResponse.data, patchPasswordSchema);
	expect(validationResult.errors).toEqual([]);
	}catch (e) {
	throw processError(e);
	}
	})