1 files changed, 27 insertions, 0 deletions
diff --git a/intl/icu_capi/js/package/test/fixed-decimal.mjs b/intl/icu_capi/js/package/test/fixed-decimal.mjs
new file mode 100644
index 0000000000..1295d47c0e
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+++ b/intl/icu_capi/js/package/test/fixed-decimal.mjs
@@ -0,0 +1,27 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+import test from 'ava';
+
+import { ICU4XFixedDecimal } from "../lib/index.js"
+
+test("convert a simple decimal to a string", t => {
+  const decimal = ICU4XFixedDecimal.create_from_i64(1234n);
+
+  t.is(decimal.to_string(), "1234");
+});
+
+test("multiply a decimal by a power of 10", t => {
+  const decimal = ICU4XFixedDecimal.create_from_i32(1234);
+  decimal.multiply_pow10(-2);
+
+  t.is(decimal.to_string(), "12.34");
+});
+
+test("negate a decimal", t => {
+  const decimal = ICU4XFixedDecimal.create_from_i32(1234);
+  decimal.set_sign("Negative");
+
+  t.is(decimal.to_string(), "-1234");
+});