context("Testing grab coefficients")
library(palmerpenguins)
data("penguins")
fit <- lm (bill_length_mm ~., data = penguins[,-8])
coefs <- as.vector(grab_coefs(fit))
expect_equal(round(coefs), c(15, 10, 6, -1, 0, 0, 0, 0, 2))
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