1 files changed, 19 insertions, 0 deletions
diff --git a/Libraries/LibJS/Tests/Math.expm1.js b/Libraries/LibJS/Tests/Math.expm1.js
new file mode 100644
index 0000000000..45f3c2be54
--- /dev/null
+++ b/Libraries/LibJS/Tests/Math.expm1.js
@@ -0,0 +1,19 @@
+load("test-common.js");
+
+try {
+    assert(Math.expm1.length === 1);
+
+    assert(Math.expm1(0) === 0);
+    assert(isClose(Math.expm1(-2), -0.864664));
+    assert(isClose(Math.expm1(-1), -0.632120));
+    assert(isClose(Math.expm1(1), 1.718281));
+    assert(isClose(Math.expm1(2), 6.389056));
+
+    assert(isNaN(Math.expm1()));
+    assert(isNaN(Math.expm1(undefined)));
+    assert(isNaN(Math.expm1("foo")));
+
+    console.log("PASS");
+} catch (e) {
+    console.log("FAIL: " + e);
+}