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Create unit testing for sum_n_first_fibonacci_numbers. #22

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May 14, 2020
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Create unit testing for sum_n_first_fibonacci_numbers. #22

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3 changes: 3 additions & 0 deletions R/sum_first_fibonacci_numbers.R
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,9 @@
#' sum_n_first_fibonacci_numbers(5)
#' sum_n_first_fibonacci_numbers(8)
sum_n_first_fibonacci_numbers <- function(n){
if(n < 0){
stop("Please use a positive number")
}
if(length(fibonacci) < n){
print(paste0("Fibonacci vector's length is ", length(fibonacci), ". Summing the ", length(fibonacci), " first numbers instead."))
return(sum(fibonacci))
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7 changes: 7 additions & 0 deletions tests/testthat/test-sum_n_first_fibonacci_numbers.R
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@@ -0,0 +1,7 @@
test_that("sum_n_first_fibonacci_numbers works", {
expect_equal(sum_n_first_fibonacci_numbers(4), 7)
})

test_that("sum_n_first_fibonacci_numbers handles edge cases", {
expect_error(sum_n_first_fibonacci_numbers(-3), "Please use a positive number")
})