diff --git a/tests/operations/index.mjs b/tests/operations/index.mjs
index d64a7737..046a0b79 100644
--- a/tests/operations/index.mjs
+++ b/tests/operations/index.mjs
@@ -91,6 +91,7 @@ import "./tests/Protobuf.mjs";
 import "./tests/ParseSSHHostKey.mjs";
 import "./tests/DefangIP.mjs";
 import "./tests/ParseUDP.mjs";
+import "./tests/DropNthBytes.mjs";
 
 // Cannot test operations that use the File type yet
 // import "./tests/SplitColourChannels.mjs";
diff --git a/tests/operations/tests/DropNthBytes.mjs b/tests/operations/tests/DropNthBytes.mjs
new file mode 100644
index 00000000..00d4e0ab
--- /dev/null
+++ b/tests/operations/tests/DropNthBytes.mjs
@@ -0,0 +1,123 @@
+/**
+ * @author Oshawk [oshawk@protonmail.com]
+ * @copyright Crown Copyright 2019
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+
+/**
+ * Drop nth bytes tests
+ */
+TestRegister.addTests([
+    {
+        name: "Drop nth bytes: Nothing",
+        input: "",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, false],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Nothing (apply to each line)",
+        input: "",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, true],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Basic single line",
+        input: "0123456789",
+        expectedOutput: "1235679",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, false],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Basic single line (apply to each line)",
+        input: "0123456789",
+        expectedOutput: "1235679",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, true],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Complex single line",
+        input: "0123456789",
+        expectedOutput: "01234678",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 5, false],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Complex single line (apply to each line)",
+        input: "0123456789",
+        expectedOutput: "01234678",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 5, true],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Basic multi line",
+        input: "01234\n56789",
+        expectedOutput: "123\n5689",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, false],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Basic multi line (apply to each line)",
+        input: "01234\n56789",
+        expectedOutput: "123\n678",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, true],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Complex multi line",
+        input: "01234\n56789",
+        expectedOutput: "012345679",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 5, false],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Complex multi line (apply to each line)",
+        input: "012345\n6789ab",
+        expectedOutput: "01234\n6789a",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 5, true],
+            },
+        ],
+    }
+]);