X-Git-Url: http://git.scottworley.com/inverse-tax/blobdiff_plain/26460571b7a61f69a90d2bb3152774f7badbe734..53d6ad337ca89bb5ee82e1ce28fdcf18aec00568:/tax.test.js

diff --git a/tax.test.js b/tax.test.js
index 067ca91..479323b 100644
--- a/tax.test.js
+++ b/tax.test.js
@@ -43,3 +43,9 @@ test("merge tax tables", () => {
     }
   }
 });
+
+test("invert", () => {
+  assert.strictEqual(invert([[ 0, Infinity, .1]])( 9), 10);
+  assert.strictEqual(invert([[10, Infinity, .1]])(19), 20);
+  assert.strictEqual(invert([[0, 100, .1], [100, Infinity, .2]])(170), 200);
+});