JavaScriptCollection
diff --git a/‎test/scale/quantize-test.js‎
Lines changed: 7 additions & 0 deletions b/‎test/scale/quantize-test.js‎
Lines changed: 7 additions & 0 deletions
@@ -59,6 +59,13 @@ suite.addBatch({
       assert.equal(x(.6), b);
       assert.equal(x(.8), c);
       assert.equal(x(1), c);
+    },
+    "maps a value in the range to a domain extent": function(quantize) {
+      var x = quantize().range([0, 1, 2, 3]);
+      assert.deepEqual(x.invertExtent(0), [0, .25]);
+      assert.deepEqual(x.invertExtent(1), [.25, .5]);
+      assert.deepEqual(x.invertExtent(2), [.5, .75]);
+      assert.deepEqual(x.invertExtent(3), [.75, 1]);
     }
   }
 });
Original file line number	Diff line number	Diff line change
`@@ -59,6 +59,13 @@ suite.addBatch({`
`59`	`59`	`assert.equal(x(.6), b);`
`60`	`60`	`assert.equal(x(.8), c);`
`61`	`61`	`assert.equal(x(1), c);`
	`62`	`+ },`
	`63`	`+ "maps a value in the range to a domain extent": function(quantize) {`
	`64`	`+ var x = quantize().range([0, 1, 2, 3]);`
	`65`	`+ assert.deepEqual(x.invertExtent(0), [0, .25]);`
	`66`	`+ assert.deepEqual(x.invertExtent(1), [.25, .5]);`
	`67`	`+ assert.deepEqual(x.invertExtent(2), [.5, .75]);`
	`68`	`+ assert.deepEqual(x.invertExtent(3), [.75, 1]);`
`62`	`69`	`}`
`63`	`70`	`}`
`64`	`71`	`});`