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-rw-r--r--test/gleam/set_test.gleam7
1 files changed, 7 insertions, 0 deletions
diff --git a/test/gleam/set_test.gleam b/test/gleam/set_test.gleam
index 85eaf4b..06af5dc 100644
--- a/test/gleam/set_test.gleam
+++ b/test/gleam/set_test.gleam
@@ -63,6 +63,7 @@ pub fn fold_test() {
[1, 3, 9]
|> set.from_list
|> set.fold(from: 0, with: fn(m, a) { m + a })
+ |> should.equal(13)
}
pub fn filter_test() {
@@ -100,3 +101,9 @@ pub fn intersection_test() {
|> set.to_list
|> should.equal([2])
}
+
+pub fn difference_test() {
+ set.difference(set.from_list([1, 2]), set.from_list([2, 3, 4]))
+ |> set.to_list
+ |> should.equal([1])
+}