css-analyzer/src/collection.test.ts at ef2120e5c7907e8f89e72079ef96b0bc2cfa04ce · projectwallace/css-analyzer · GitHub

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import { test, expect, expectTypeOf } from 'vitest'
import { Collection, type UniqueWithLocations } from './collection'

let loc = { line: 1, column: 1, offset: 1, length: 1 }

test('basic collection - size()', () => {
	let collection = new Collection()
	collection.p('a', loc)
	collection.p('a', loc)
	expect(collection.size()).toEqual(2)
})

test('count with useLocations=undefined', () => {
	let collection = new Collection()
	collection.p('a', loc)
	collection.p('a', loc)

	let count = collection.c()
	expect(count).toEqual({
		total: 2,
		totalUnique: 1,
		unique: {
			a: 2,
		},
		uniquenessRatio: 0.5,
	})
	expectTypeOf(count['uniqueWithLocations']).toBeUndefined()
})

test('count with useLocations=false', () => {
	let collection = new Collection(false)
	collection.p('a', loc)
	collection.p('a', loc)

	let count = collection.c()
	expect(count).toEqual({
		total: 2,
		totalUnique: 1,
		unique: {
			a: 2,
		},
		uniquenessRatio: 0.5,
	})
	expectTypeOf(count['uniqueWithLocations']).toBeUndefined()
})

test('count with useLocations=true', () => {
	let collection = new Collection(true)
	collection.p('a', loc)
	collection.p('a', loc)

	let count = collection.c()
	expect(count).toEqual({
		total: 2,
		totalUnique: 1,
		unique: { a: 2 },
		uniquenessRatio: 0.5,
	})
	expectTypeOf(count['uniqueWithLocations']).toBeUndefined()

	let locs = collection.locs()
	let pos = { offset: 1, length: 1, line: 1, column: 1 }
	expect(locs).toEqual({ a: [pos, pos] })
})