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xct_specific_matcher.md

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Pattern: Missing use of specific XCTest matcher

Issue: -

Description

Prefer specific XCTest matchers over XCTAssertEqual and XCTAssertNotEqual.

Examples of correct code:

XCTAssertFalse(foo)


XCTAssertTrue(foo)


XCTAssertNil(foo)


XCTAssertNotNil(foo)


XCTAssertEqual(foo, 2)


XCTAssertNotEqual(foo, "false")


XCTAssertEqual(foo, [1, 2, 3, true])


XCTAssertEqual(foo, [1, 2, 3, false])


XCTAssertEqual(foo, [1, 2, 3, nil])


XCTAssertEqual(foo, [true, nil, true, nil])


XCTAssertEqual([1, 2, 3, true], foo)


XCTAssertEqual([1, 2, 3, false], foo)


XCTAssertEqual([1, 2, 3, nil], foo)


XCTAssertEqual([true, nil, true, nil], foo)


XCTAssertEqual(2, foo)


XCTAssertNotEqual("false", foo)


XCTAssertEqual(false, foo?.bar)


XCTAssertEqual(true, foo?.bar)


XCTAssertFalse(  foo  )


XCTAssertTrue(  foo  )


XCTAssertNil(  foo  )


XCTAssertNotNil(  foo  )


XCTAssertEqual(  foo  , 2  )


XCTAssertNotEqual(  foo, "false")


XCTAssertEqual(foo?.bar, false)


XCTAssertEqual(foo?.bar, true)


XCTAssertNil(foo?.bar)


XCTAssertNotNil(foo?.bar)


XCTAssertEqual(foo?.bar, 2)


XCTAssertNotEqual(foo?.bar, "false")


XCTAssertEqual(foo?.bar, toto())


XCTAssertEqual(foo?.bar, .toto(.zoo))


XCTAssertEqual(toto(), foo?.bar)


XCTAssertEqual(.toto(.zoo), foo?.bar)

Examples of incorrect code:

↓XCTAssertEqual(foo, true)


↓XCTAssertEqual(foo, false)


↓XCTAssertEqual(foo, nil)


↓XCTAssertNotEqual(foo, true)


↓XCTAssertNotEqual(foo, false)


↓XCTAssertNotEqual(foo, nil)


↓XCTAssertEqual(true, foo)


↓XCTAssertEqual(false, foo)


↓XCTAssertEqual(nil, foo)


↓XCTAssertNotEqual(true, foo)


↓XCTAssertNotEqual(false, foo)


↓XCTAssertNotEqual(nil, foo)


↓XCTAssertEqual(foo, true, "toto")


↓XCTAssertEqual(foo, false, "toto")


↓XCTAssertEqual(foo, nil, "toto")


↓XCTAssertNotEqual(foo, true, "toto")


↓XCTAssertNotEqual(foo, false, "toto")


↓XCTAssertNotEqual(foo, nil, "toto")


↓XCTAssertEqual(true, foo, "toto")


↓XCTAssertEqual(false, foo, "toto")


↓XCTAssertEqual(nil, foo, "toto")


↓XCTAssertNotEqual(true, foo, "toto")


↓XCTAssertNotEqual(false, foo, "toto")


↓XCTAssertNotEqual(nil, foo, "toto")


↓XCTAssertEqual(foo,true)


↓XCTAssertEqual( foo , false )


↓XCTAssertEqual(  foo  ,  nil  )


↓XCTAssertEqual(true, [1, 2, 3, true].hasNumbers())


↓XCTAssertEqual([1, 2, 3, true].hasNumbers(), true)


↓XCTAssertEqual(foo?.bar, nil)


↓XCTAssertNotEqual(foo?.bar, nil)


↓XCTAssertEqual(nil, true)


↓XCTAssertEqual(nil, false)


↓XCTAssertEqual(true, nil)


↓XCTAssertEqual(false, nil)


↓XCTAssertEqual(nil, nil)


↓XCTAssertEqual(true, true)


↓XCTAssertEqual(false, false)

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