1 files changed, 118 insertions, 0 deletions
diff --git a/test/std/float_test.gleam b/test/std/float_test.gleam
new file mode 100644
index 0000000..0847973
--- /dev/null
+++ b/test/std/float_test.gleam
@@ -0,0 +1,118 @@
+import std/expect
+import std/float
+
+pub fn parse_test() {
+  "1.23"
+  |> float:parse
+  |> expect:equal(_, Ok(1.23))
+
+  "5.0"
+  |> float:parse
+  |> expect:equal(_, Ok(5.0))
+
+  "0.123456789"
+  |> float:parse
+  |> expect:equal(_, Ok(0.123456789))
+
+  ""
+  |> float:parse
+  |> expect:is_error
+
+  "what"
+  |> float:parse
+  |> expect:is_error
+
+  "1"
+  |> float:parse
+  |> expect:is_error
+}
+
+pub fn to_string_test() {
+  123.0
+  |> float:to_string
+  |> expect:equal(_, "123.0")
+
+  -8.1
+  |> float:to_string
+  |> expect:equal(_, "-8.1")
+}
+
+pub fn ceiling_test() {
+  8.1
+  |> float:ceiling
+  |> expect:equal(_, 9.0)
+
+  -8.1
+  |> float:ceiling
+  |> expect:equal(_, -8.0)
+
+  -8.0
+  |> float:ceiling
+  |> expect:equal(_, -8.0)
+}
+
+pub fn floor_test() {
+  8.1
+  |> float:floor
+  |> expect:equal(_, 8.0)
+
+  -8.1
+  |> float:floor
+  |> expect:equal(_, -9.0)
+
+  -8.0
+  |> float:floor
+  |> expect:equal(_, -8.0)
+}
+
+pub fn round_test() {
+  8.1
+  |> float:round
+  |> expect:equal(_, 8)
+
+  8.4
+  |> float:round
+  |> expect:equal(_, 8)
+
+  8.499
+  |> float:round
+  |> expect:equal(_, 8)
+
+  8.5
+  |> float:round
+  |> expect:equal(_, 9)
+
+  -8.1
+  |> float:round
+  |> expect:equal(_, -8)
+
+  -7.5
+  |> float:round
+  |> expect:equal(_, -8)
+}
+
+pub fn truncate_test() {
+  8.1
+  |> float:truncate
+  |> expect:equal(_, 8)
+
+  8.4
+  |> float:truncate
+  |> expect:equal(_, 8)
+
+  8.499
+  |> float:truncate
+  |> expect:equal(_, 8)
+
+  8.5
+  |> float:truncate
+  |> expect:equal(_, 8)
+
+  -8.1
+  |> float:truncate
+  |> expect:equal(_, -8)
+
+  -7.5
+  |> float:truncate
+  |> expect:equal(_, -7)
+}