expect_comparison_linter.md

Pattern: Use of testthat::expect_true()

Issue: -

Description

testthat::expect_gt(), testthat::expect_gte(), testthat::expect_lt(), testthat::expect_lte(), and testthat::expect_equal() exist specifically for testing comparisons between two objects.

testthat::expect_true() can also be used for such tests, but it is better to use the tailored function instead.

Examples

# will produce lints
lint(
  text = "expect_true(x > y)",
  linters = expect_comparison_linter()
)

# okay
lint(
  text = "expect_gt(x, y)",
  linters = expect_comparison_linter()
)

Further Reading

• lintr - expect_comparison_linter