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Yoda tests use (expected, actual) instead of the more common (actual, expected). This is not always possible to detect statically; this linter focuses on the simple case of testing an expression against a literal value, e.g. (1L, foo(x)) should be (foo(x), 1L).

Usage

yoda_test_linter()

See also

linters for a complete list of linters available in lintr. https://en.wikipedia.org/wiki/Yoda_conditions