1 files changed, 22 insertions, 0 deletions
diff --git a/date-fns/src/millisecondsToSeconds/test.ts b/date-fns/src/millisecondsToSeconds/test.ts
new file mode 100644
index 0000000..6e3c15b
--- /dev/null
+++ b/date-fns/src/millisecondsToSeconds/test.ts
@@ -0,0 +1,22 @@
+/* eslint-env mocha */
+
+import assert from 'assert'
+import millisecondsToSeconds from '.'
+
+describe('millisecondsToSeconds', function () {
+
+  it('converts milliseconds to seconds', function () {
+    assert(millisecondsToSeconds(1000) === 1)
+    assert(millisecondsToSeconds(2000) === 2)
+  })
+
+  it('uses floor rounding', () => {
+    assert(millisecondsToSeconds(1001) === 1)
+    assert(millisecondsToSeconds(999) === 0)
+  })
+
+  it('handles border values', () => {
+    assert(millisecondsToSeconds(1000.5) === 1)
+    assert(millisecondsToSeconds(0) === 0)
+  })
+})