diff --git a/src/cast.js b/src/cast.js
index 6d59228..d29a048 100644
--- a/src/cast.js
+++ b/src/cast.js
@@ -12,16 +12,16 @@ export function cast(input, type) {
   let outputArray;
   switch (type) {
     case 'int8':
-      outputArray = new Int8Array(input.data);
+      outputArray = new Int8Array(Array.from(input.data, (num) => (Math.round(num))));
       break;
     case 'uint8':
-      outputArray = new Uint8Array(input.data);
+      outputArray = new Uint8Array(Array.from(input.data, (num) => (Math.round(num))));
       break;
     case 'int32':
-      outputArray = new Int32Array(input.data);
+      outputArray = new Int32Array(Array.from(input.data, (num) => (Math.round(num))));
       break;
     case 'uint32':
-      outputArray = new Uint32Array(input.data);
+      outputArray = new Uint32Array(Array.from(input.data, (num) => (Math.round(num))));
       break;
     case 'int64':
       outputArray = new BigInt64Array(Array.from(input.data, (num) => BigInt(Math.round(num))));
diff --git a/test/cast_test.js b/test/cast_test.js
index 85a2ddf..b6046ee 100644
--- a/test/cast_test.js
+++ b/test/cast_test.js
@@ -30,13 +30,13 @@ describe('test cast', function() {
     const input = {
       shape: [5],
       data: [
-        -0.25, 0.25, 3.21, 1234, -1234,
+        -0.25, 0.25, 3.75, 14, -14,
       ],
     };
     const expected = {
       shape: [5],
       data: [
-        0, 0, 3, -46, 46,
+        0, 0, 4, 14, -14,
       ],
     };
     testCast(input, 'int8', expected);
@@ -46,13 +46,13 @@ describe('test cast', function() {
     const input = {
       shape: [5],
       data: [
-        -0.25, 0.25, 3.21, 1234, -1234,
+        0.25, 0.75, 3.75, 14, 15,
       ],
     };
     const expected = {
       shape: [5],
       data: [
-        0, 0, 3, 210, 46,
+        0, 1, 4, 14, 15,
       ],
     };
     testCast(input, 'uint8', expected);
@@ -78,13 +78,13 @@ describe('test cast', function() {
     const input = {
       shape: [5],
       data: [
-        -0.25, 0.25, 3.21, 1234, -1234,
+        0.75, 0.25, 3.21, 14, 15,
       ],
     };
     const expected = {
       shape: [5],
       data: [
-        0, 0, 3, 1234, 4294966062,
+        1, 0, 3, 14, 15,
       ],
     };
     testCast(input, 'uint32', expected);
@@ -126,14 +126,14 @@ describe('test cast', function() {
     const input = {
       shape: [5],
       data: [
-        0, 1, 2, 3, 3,
+        0, 1, -2, -3, 3,
       ],
       type: 'int32',
     };
     const expected = {
       shape: [5],
       data: [
-        0, 1, 2, 3, 3,
+        0, 1, -2, -3, 3,
       ],
     };
     testCast(input, 'float32', expected);
@@ -160,14 +160,14 @@ describe('test cast', function() {
     const input = {
       shape: [5],
       data: [
-        0, 0.1, 0.2, 3, 993,
+        0, 0.1, 0.2, -3, 993,
       ],
       type: 'float32',
     };
     const expected = {
       shape: [5],
       data: [
-        0, 0.10000000149011612, 0.20000000298023224, 3, 993,
+        0, 0.10000000149011612, 0.20000000298023224, -3, 993,
       ],
     };
     testCast(input, 'float64', expected);
diff --git a/test/utils.js b/test/utils.js
index b4fed49..f8c22cc 100644
--- a/test/utils.js
+++ b/test/utils.js
@@ -34,7 +34,7 @@ assert.isAlmostEqualUlp = function(a, b, nulp, message) {
     distance = distance >= 0 ? distance : -distance;
     return assert.isTrue(distance <= nulp, message);
   } else {
-    let distance = a-b;
+    let distance = a - b;
     distance = distance >= 0n ? distance : -distance;
     return assert.isTrue(distance <= nulp, message);
   }