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dartdart-unittestdart-test

What is the difference between `true` and `isTrue` or `false` and `isFalse` in dart test?

I already know using the isTrue and isFalse matchers can make test assertions more descriptive and easier to read. However, I want to know if there are any other benefits or reasons for using them instead of boolean values.

expect(actual, isTrue);
expect(actual, isFalse);

vs.

expect(actual, true);
expect(actual, false);
Solution

  • There is no meaningful behavior difference, it is strictly a style choice. The choice exists for legacy reasons - it is not an intentional design for the library.

    There is an insignificant difference in the output when it fails: "Expected: <true>" vs "Expected: true".