1 files changed, 22 insertions, 0 deletions
diff --git a/test/gleam/int_test.gleam b/test/gleam/int_test.gleam
index 851013d..594720c 100644
--- a/test/gleam/int_test.gleam
+++ b/test/gleam/int_test.gleam
@@ -87,6 +87,28 @@ pub fn to_base_string_test() {
   |> should.equal(Error(int.InvalidBase))
 }
 
+pub fn from_base_string_test() {
+  "100"
+  |> int.from_base_string(16)
+  |> should.equal(Ok(256))
+
+  "-100"
+  |> int.from_base_string(16)
+  |> should.equal(Ok(-256))
+
+  "100"
+  |> int.from_base_string(1)
+  |> should.equal(Error(Nil))
+
+  "100"
+  |> int.from_base_string(37)
+  |> should.equal(Error(Nil))
+
+  "AG"
+  |> int.from_base_string(16)
+  |> should.equal(Error(Nil))
+}
+
 pub fn to_base2_test() {
   100
   |> int.to_base2()