Test expressions
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This document discusses various test expressions and assertions that can be used in Xcode tests including equality, truthiness, nullability, comparison, and error assertions. It also covers randomizing test execution order, measuring code coverage, and achieving 100% coverage through test-driven development. Tips are provided for debugging tests.
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Test expressions
- 2. Assert methods 3 XCTAssertEqual . XCTest assert function . • Equality: XCTAssertEqual, XCTAssertNotEqual • Truthiness: XCTAssertTrue, XCTAssertFalse • Nullability: XCTAssertNil, XCTAssertNotNil • Comparison: XCTAssertLessThan, XCTAssertGreaterThan, XCTAssertLessThanOrEqual, XCTAssertGreaterThanOrEqual • Erroring: XCTAssertThrowsError, XCTAssertNoThrow XCTAssertTrue .
- 3. Randomize execution order • . • ( ) . • .
- 6. Code Coverage • Code Coverage . • . • 100% TDD . • .
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- 12. Test Code Coverage 100% . 100% . TDD UI Test 100% . UI .