expect base function documentation: "error_message" fails, "message" works

[JasonCurole]

Tried to use "failure_message" as listed in the docs for expect_ and received the error below. In contrast, "message" works without error.

── Error ('test-create_expense_df.R:9:5'): get_expense_detail_df works for active projects ──
<rlib_error_dots_nonempty/rlib_error_dots/rlang_error/error/condition>
Error in `expect_no_error(get_expense_detail_df(project_id, invoice_values, 
    project_dir, svc), failure_message = paste0(project_id, " failed to create expense detail df."))`: `...` must be empty.
x Problematic argument:
* failure_message = paste0(project_id, " failed to create expense detail df.")
Backtrace:
    ▆
 1. └─testthat::expect_no_error(...) at test-create_expense_df.R:9:5
 2.   └─rlang::check_dots_empty()
 3.     └─rlang:::action_dots(...)
 4.       ├─base (local) try_dots(...)
 5.       └─rlang (local) action(...)

[hadley]

There's no function called expect_ so unfortunately I'm not sure what you're asking about.