test_that("invoke", {
expect_equal(invoke(identity, .args = list(1L)), 1L)
foo = function(x, y) x + y
expect_equal(invoke(foo, .args = list(x = 1, y = 2)), 3)
expect_equal(invoke(foo, .args = list(x = 1), y = 2), 3)
expect_equal(invoke(foo, x = 1, y = 2), 3)
f = function(x) warning("foo")
prev_warn = getOption("warn")
expect_warning(f(1))
expect_warning(invoke(f, 1))
expect_error(invoke(f, 1, .opts = list(warn = 2)))
expect_equal(getOption("warn"), prev_warn)
})
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