Matchers

• .pass(message)
• .fail(message)
• .toBeEmpty()
• .toBeOneOf([members])
• .toBeNil()
• .toSatisfy(predicate)

Array

• .toBeArray()
• .toBeArrayOfSize()
• .toIncludeAllMembers([members])
• .toIncludeAllPartialMembers([members])
• .toIncludeAnyMembers([members])
• .toIncludeSameMembers([members])
• .toPartiallyContain(member)
• .toSatisfyAll(predicate)
• .toSatisfyAny(predicate)
• .toBeInRange(min, max)

Boolean

• .toBeBoolean()
• .toBeTrue()
• .toBeFalse()

Date

• .toBeDate()
• .toBeValidDate()
• .toBeAfter(date)
• .toBeBefore(date)
• .toBeAfterOrEqualTo(date)
• .toBeBeforeOrEqualTo(date)
• .toBeBetween(startDate, endDate)

Function

• .toBeFunction()
• .toThrowWithMessage()

Mock

• .toHaveBeenCalledBefore()
• .toHaveBeenCalledAfter()
• .toHaveBeenCalledOnce()
• .toHaveBeenCalledExactlyOnceWith()

Number

• .toBeNumber()
• .toBeNaN()
• .toBeFinite()
• .toBePositive()
• .toBeNegative()
• .toBeEven()
• .toBeOdd()
• .toBeWithin(start, end)
• .toBeInteger()

Object

• .toBeObject()
• .toBeEmptyObject()
• .toContainKey(key)
• .toContainKeys([keys])
• .toContainAllKeys([keys])
• .toContainAnyKeys([keys])
• .toContainValue(value)
• .toContainValues([values])
• .toContainAllValues([values])
• .toContainAnyValues([values])
• .toContainEntry([key, value])
• .toContainEntries([[key, value]])
• .toContainAllEntries([[key, value]])
• .toContainAnyEntries([[key, value]])
• .toBeExtensible()
• .toBeFrozen()
• .toBeSealed()

Promise

• .toResolve()
• .toReject()

String

• .toBeString()
• .toBeHexadecimal(string)
• .toBeDateString(string)
• .toEqualCaseInsensitive(string)
• .toStartWith(prefix)
• .toEndWith(suffix)
• .toInclude(substring)
• .toIncludeRepeated(substring, times)
• .toIncludeMultiple([substring])
• .toEqualIgnoringWhitespace(string)

Symbol

• .toBeSymbol()