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Contains.ts
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Contains.ts
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import { EqualityComparer } from "linq-to-typescript"
import { asAsync, itAsync, itEnumerable, itParallel } from "../TestHelpers"
describe("contains", () => {
it("String", () => {
expect("abc".contains("c")).toBe(true)
})
itEnumerable<string | number>("Countains", (asEnumerable) => {
const array = asEnumerable([1, "2", "3"])
expect(array.contains(2)).toBe(false)
expect(array.contains(1)).toBe(true)
})
itAsync("Countains", async () => {
const array = asAsync([1, "2", "3"])
expect(await array.contains(2)).toBe(false)
expect(await array.contains(1)).toBe(true)
})
itParallel<string | number>("Countains", async (asParallel) => {
const array = asParallel([1, "2", "3"])
expect(await array.contains(2)).toBe(false)
expect(await array.contains(1)).toBe(true)
})
itEnumerable<string | number>("Contains With Comparer", (asEnumerable) => {
const array = asEnumerable([1, "2", "3"])
expect(array.contains(2, EqualityComparer)).toBe(true)
expect(array.contains("2", EqualityComparer)).toBe(true)
expect(array.contains(4, EqualityComparer)).toBe(false)
})
itAsync("Contains With Comparer", async () => {
const array = asAsync([1, "2", "3"])
expect(await array.contains(2, EqualityComparer)).toBe(true)
expect(await array.contains("2", EqualityComparer)).toBe(true)
expect(await array.contains(4, EqualityComparer)).toBe(false)
})
itParallel<string | number>("Contains With Comparer", async (asParallel) => {
const array = asParallel([1, "2", "3"])
expect(await array.contains(2, EqualityComparer)).toBe(true)
expect(await array.contains("2", EqualityComparer)).toBe(true)
expect(await array.contains(4, EqualityComparer)).toBe(false)
})
itEnumerable("contains empty to be false", (asEnumerable) =>
expect(asEnumerable([] as number[]).contains(0)).toBe(false))
itAsync("contains empty to be false", async () => {
const value = await asAsync([] as number[]).contains(0)
expect(value).toBe(false)
})
itParallel("contains empty to be false", async (asParallel) => {
const value = await asParallel([] as number[]).contains(0)
expect(value).toBe(false)
})
itEnumerable("Contains False", (asEnumerable) =>
expect(asEnumerable([1, 2]).contains(0)).toBe(false))
itAsync("Contains False", async () =>
expect(await asAsync([1, 2]).contains(0)).toBe(false))
itParallel("Contains False", async (asParallel) =>
expect(await asParallel([1, 2]).contains(0)).toBe(false))
itEnumerable("Contains True", (asEnumerable) =>
expect(asEnumerable([1, 2]).contains(1)).toBe(true))
itAsync("Contains True", async () =>
expect(await asAsync([1, 2]).contains(1)).toBe(true))
itParallel("Contains True", async (asParallel) =>
expect(await asParallel([1, 2]).contains(1)).toBe(true))
})