Calculate inverse bounds correctly

[inverse-tax] / tax.test.js

diff --git a/tax.test.js b/tax.test.js
index 125cc2091cccd1587c27d9687e10271864f20066..27767fedc6912d48eb7be731be102919c02bd874 100644 (file)
--- a/tax.test.js
+++ b/tax.test.js
@@ -59,4 +59,5 @@ test("invert", () => {
   assert.strictEqual(invert([[10, Infinity, .1]])(19), 20);
   assert.strictEqual(invert([[10, Infinity, .1]])( 9),  9);
   assert.strictEqual(invert([[0, 100, .1], [100, Infinity, .2]])(170), 200);
+  assert.strictEqual(invert([[0, 100, .1], [100, Infinity, .2]])(112), 127.5);
 });