Avoid library() in test files#741
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flying-sheep
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hadley
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| expect_is(skipped_stack[[1]], 'call') | ||
| # See discussion in #741 about using inherits() here and not | ||
| # expect_type(., "language") or expect_true(is.call(.)) or expect_mode(., "call") | ||
| expect_true(inherits(skipped_stack[[1]], 'call')) |
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I think you could make this test more clear by making it more explicit:
expect_equal(skipped_stack[[1]], quote(f(1)))Or even:
expect_equal(skipped_stack, list(quote(f(1)), quote(stop(x))))That illustrates a subtle problem somewhere in the stack because if you print skipped_stack you see:
[[1]]
f(1)
[[2]]
function(x) stop(x)
Because the srcref is out of sync with the actual contents of the element.
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This makes tests less hermetic by creating permanent side effects that survive the test file.
Also remove deprecated
expect_is()in anticipation of upgrading to {testthat} 3rd edition.