Added Tests :D

Signed-off-by: Avior <florian.bouillon@delta-wings.net>

__tests__/basic.test.js

@@ -0,0 +1,66 @@
+const TCGdex = require("../dist/cjs/tcgdex.js").default
+const fetch = require('node-fetch')
+
+const fakeFetch = (response, status = 200) => jest.fn(() =>
+	Promise.resolve({
+		status: status,
+		json: () => Promise.resolve(response),
+	})
+);
+
+
+
+test('Basic test', async () => {
+	const tcgdex = new TCGdex('en')
+	TCGdex.fetch = fakeFetch({ok: true})
+	const res = await tcgdex.fetch('cards', 'basic-test')
+	expect(res).toEqual({ok: true})
+	expect(TCGdex.fetch).toHaveBeenCalledTimes(1)
+})
+
+test('Cache test', async () => {
+	const tcgdex = new TCGdex('en')
+	TCGdex.fetch = fakeFetch({ok: 'a'})
+	const res1 = await tcgdex.fetch('cards', 'cache-test')
+	expect(res1).toEqual({ok: 'a'})
+	TCGdex.fetch = fakeFetch({ok: 'b'})
+	const res2 = await tcgdex.fetch('cards', 'cache-test')
+	expect(res2).toEqual({ok: 'a'})
+})
+
+test('endpoint errors', async () => {
+	const tcgdex = new TCGdex('en')
+	TCGdex.fetch = fakeFetch({ok: 'a'})
+	await expect(tcgdex.fetch('non existing endpoint')).rejects.toThrow()
+	await expect(tcgdex.fetch()).rejects.toThrow()
+})
+
+test('404 test', async () => {
+	const tcgdex = new TCGdex('en')
+	TCGdex.fetch = fakeFetch(undefined, 404)
+	expect(
+		await tcgdex.fetch('cards', '404-test')
+	).not.toBeDefined()
+})
+
+test('test real endpoints', async () => {
+	const tcgdex = new TCGdex('en')
+	TCGdex.fetch = fetch
+	const endpoints = [
+		{endpoint: 'fetchCard', params: ['swsh1-1']},
+		{endpoint: 'fetchCard', params: ['1', 'Sword & Shield']},
+		{endpoint: 'fetchCards', params: ['swsh1']},
+		{endpoint: 'fetchCards', params: []},
+		{endpoint: 'fetchSet', params: ['swsh1']},
+		{endpoint: 'fetchSets', params: ['swsh']},
+		{endpoint: 'fetchSets', params: []},
+		{endpoint: 'fetchSeries', params: []},
+		{endpoint: 'fetchSerie', params: ['swsh']},
+	]
+
+	for await (const item of endpoints) {
+		expect(
+			await tcgdex[item.endpoint](...item.params)
+		).toBeDefined()
+	}
+})