Nothing
test_that("duplicate_argument_linter doesn't block allowed usages", {
linter <- duplicate_argument_linter()
expect_lint("fun(arg = 1)", NULL, linter)
expect_lint("fun('arg' = 1)", NULL, linter)
expect_lint("fun(`arg` = 1)", NULL, linter)
expect_lint("'fun'(arg = 1)", NULL, linter)
expect_lint("(function(x, y) x + y)(x = 1)", NULL, linter)
expect_lint("dt[i = 1]", NULL, linter)
})
test_that("duplicate_argument_linter blocks disallowed usages", {
linter <- duplicate_argument_linter()
lint_msg <- rex::rex("Avoid duplicate arguments in function calls.")
expect_lint("fun(arg = 1, arg = 2)", lint_msg, linter)
expect_lint("fun(arg = 1, 'arg' = 2)", lint_msg, linter)
expect_lint("fun(arg = 1, `arg` = 2)", lint_msg, linter)
expect_lint("'fun'(arg = 1, arg = 2)", lint_msg, linter)
expect_lint("(function(x, y) x + y)(x = 1, x = 2)", lint_msg, linter)
expect_lint("dt[i = 1, i = 2]", lint_msg, linter)
expect_lint(
trim_some("
list(
var = 1,
var = 2
)
"),
lint_msg,
linter
)
})
test_that("duplicate_argument_linter respects except argument", {
expect_lint(
"list(
var = 1,
var = 2
)",
NULL,
duplicate_argument_linter(except = "list")
)
expect_lint(
"(function(x, y) x + y)(x = 1)
list(var = 1, var = 2)",
NULL,
duplicate_argument_linter(except = "list")
)
expect_lint(
"fun(`
` = 1, `
` = 2)",
rex::rex("Avoid duplicate arguments in function calls."),
duplicate_argument_linter(except = character())
)
expect_lint(
"function(arg = 1, arg = 1) {}",
rex::rex("Repeated formal argument 'arg'."),
duplicate_argument_linter(except = character())
)
})
test_that("doesn't lint duplicated arguments in allowed functions", {
linter <- duplicate_argument_linter()
expect_lint(
"x %>%
dplyr::mutate(
col = a + b,
col = col + d
)",
NULL,
linter
)
expect_lint(
"x %>%
dplyr::transmute(
col = a + b,
col = col / 2.5
)",
NULL,
linter
)
skip_if_not_r_version("4.1.0")
expect_lint(
"x |>
dplyr::mutate(
col = col |> str_replace('t', '') |> str_replace('\\\\s+$', 'xxx')
)",
NULL,
linter
)
})
test_that("interceding comments don't trip up logic", {
linter <- duplicate_argument_linter()
lint_msg <- rex::rex("Avoid duplicate arguments")
# comment before the EQ_SUB
# actually this case "just works" even before #2402 since
# get_r_string() returns NA for both argument names
expect_lint(
trim_some("
fun(
arg # xxx
= 1,
arg # yyy
= 2
)
"),
list(lint_msg, line_number = 4L),
linter
)
expect_lint(
trim_some("
fun(
arg # xxx
= 1,
arg = 2
)
"),
list(lint_msg, line_number = 4L),
linter
)
expect_lint(
trim_some("
fun(
arg = 1,
arg # yyy
= 2
)
"),
list(lint_msg, line_number = 3L),
linter
)
# comment after the EQ_SUB
expect_lint(
trim_some("
fun(
arg = # xxx
1,
arg = # yyy
2
)
"),
list(lint_msg, line_number = 4L),
linter
)
expect_lint(
trim_some("
fun(
arg = # xxx
1,
arg = 2
)
"),
list(lint_msg, line_number = 4L),
linter
)
expect_lint(
trim_some("
fun(
arg = 1,
arg = # yyy
2
)
"),
list(lint_msg, line_number = 3L),
linter
)
# comment after the arg value
expect_lint(
trim_some("
fun(
arg = 1 # xxx
,
arg = 2 # yyy
)
"),
list(lint_msg, line_number = 4L),
linter
)
expect_lint(
trim_some("
fun(
arg = 1 # xxx
,
arg = 2
)
"),
list(lint_msg, line_number = 4L),
linter
)
expect_lint(
trim_some("
fun(
arg = 1,
arg = 2 # yyy
)
"),
list(lint_msg, line_number = 3L),
linter
)
# comment after the OP-COMMA
expect_lint(
trim_some("
fun(
arg = 1, # xxx
arg = 2 # yyy
)
"),
list(lint_msg, line_number = 3L),
linter
)
expect_lint(
trim_some("
fun(
arg = 1, # xxx
arg = 2
)
"),
list(lint_msg, line_number = 3L),
linter
)
})
test_that("lints vectorize", {
lint_msg <- rex::rex("Avoid duplicate arguments")
expect_lint(
trim_some("{
c(a = 1, a = 2, a = 3)
list(b = 1, b = 2, b = 3)
}"),
list(
list(lint_msg, line_number = 2L, column_number = 12L),
list(lint_msg, line_number = 2L, column_number = 19L),
list(lint_msg, line_number = 3L, column_number = 15L),
list(lint_msg, line_number = 3L, column_number = 22L)
),
duplicate_argument_linter()
)
})
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