Table of Verifications, Assertions, and Other Qualifications

There are four types of qualifications for testing values and responding to failures: verifications, assumptions, assertions, and fatal assertions.

• Verifications — Produce and record failures without throwing an exception, meaning the remaining tests run to completion.

• Assumptions — Ensure that a test runs only when certain preconditions are satisfied and the event should not produce a test failure. When an assumption failure occurs, the testing framework marks the test as filtered.

• Assertions — Ensure that the preconditions of the current test are met.

• Fatal assertions — Use this qualification when the failure at the assertion point renders the remainder of the current test method invalid or the state is unrecoverable.

Type of Test	Verification	Assumption	Assertion	Fatal Assertion
Value is true.	verifyTrue	assumeTrue	assertTrue	fatalAssertTrue
Value is false.	verifyFalse	assumeFalse	assertFalse	fatalAssertFalse
Value is equal to specified value.	verifyEqual	assumeEqual	assertEqual	fatalAssertEqual
Value is not equal to specified value.	verifyNotEqual	assumeNotEqual	assertNotEqual	fatalAssertNotEqual
Two values are handles to same instance.	verifySameHandle	assumeSameHandle	assertSameHandle	fatalAssertSameHandle
Value is not handle to specified instance.	verifyNotSameHandle	assumeNotSameHandle	assertNotSameHandle	fatalAssertNotSameHandle
Function returns true when evaluated.	verifyReturnsTrue	assumeReturnsTrue	assertReturnsTrue	fatalAssertReturnsTrue
Test produces unconditional failure.	verifyFail	assumeFail	assertFail	fatalAssertFail
Value meets given constraint.	verifyThat	assumeThat	assertThat	fatalAssertThat
Value is greater than specified value.	verifyGreaterThan	assumeGreaterThan	assertGreaterThan	fatalAssertGreaterThan
Value is greater than or equal to specified value.	verifyGreaterThanOrEqual	assumeGreaterThanOrEqual	assertGreaterThanOrEqual	fatalAssertGreaterThanOrEqual
Value is less than specified value.	verifyLessThan	assumeLessThan	assertLessThan	fatalAssertLessThan
Value is less than or equal to specified value.	verifyLessThanOrEqual	assumeLessThanOrEqual	assertLessThanOrEqual	fatalAssertLessThanOrEqual
Value is exact specified class.	verifyClass	assumeClass	assertClass	fatalAssertClass
Value is object of specified type.	verifyInstanceOf	assumeInstanceOf	assertInstanceOf	fatalAssertInstanceOf
Value is empty.	verifyEmpty	assumeEmpty	assertEmpty	fatalAssertEmpty
Value is not empty.	verifyNotEmpty	assumeNotEmpty	assertNotEmpty	fatalAssertNotEmpty
Value has specified size.	verifySize	assumeSize	assertSize	fatalAssertSize
Value has specified length.	verifyLength	assumeLength	assertLength	fatalAssertLength
Value has specified element count.	verifyNumElements	assumeNumElements	assertNumElements	fatalAssertNumElements
String contains specified string.	verifySubstring	assumeSubstring	assertSubstring	fatalAssertSubstring
Text matches specified regular expression.	verifyMatches	assumeMatches	assertMatches	fatalAssertMatches
Function throws specified exception.	verifyError	assumeError	assertError	fatalAssertError
Function issues specified warning.	verifyWarning	assumeWarning	assertWarning	fatalAssertWarning
Function issues no warnings.	verifyWarningFree	assumeWarningFree	assertWarningFree	fatalAssertWarningFree