diff --git a/src/converters/graphicsmagick.ts b/src/converters/graphicsmagick.ts
index 6a52ea8..5551341 100644
--- a/src/converters/graphicsmagick.ts
+++ b/src/converters/graphicsmagick.ts
@@ -315,7 +315,7 @@ export function convert(
   convertTo: string,
   targetPath: string,
   options?: unknown,
-  execFile: ExecFileFn = execFileOriginal,
+  execFile: ExecFileFn = execFileOriginal, // to make it mockable
 ): Promise<string> {
   return new Promise((resolve, reject) => {
     execFile("gm", ["convert", filePath, targetPath], (error, stdout, stderr) => {
diff --git a/src/converters/imagemagick.ts b/src/converters/imagemagick.ts
index 9f4ff94..eb2eaa7 100644
--- a/src/converters/imagemagick.ts
+++ b/src/converters/imagemagick.ts
@@ -447,7 +447,7 @@ export function convert(
   convertTo: string,
   targetPath: string,
   options?: unknown,
-  execFile: ExecFileFn = execFileOriginal,
+  execFile: ExecFileFn = execFileOriginal, // to make it mockable
 ): Promise<string> {
   let outputArgs: string[] = [];
   let inputArgs: string[] = [];
diff --git a/src/converters/inkscape.ts b/src/converters/inkscape.ts
index 9e13fb0..4497e2f 100644
--- a/src/converters/inkscape.ts
+++ b/src/converters/inkscape.ts
@@ -1,4 +1,5 @@
-import { execFile } from "node:child_process";
+import { execFile as execFileOriginal } from "node:child_process";
+import { ExecFileFn } from "./types.ts";
 
 export const properties = {
   from: {
@@ -32,8 +33,8 @@ export function convert(
   fileType: string,
   convertTo: string,
   targetPath: string,
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
   options?: unknown,
+  execFile: ExecFileFn = execFileOriginal, // to make it mockable
 ): Promise<string> {
   return new Promise((resolve, reject) => {
     execFile("inkscape", [filePath, "-o", targetPath], (error, stdout, stderr) => {
diff --git a/tests/converters/inkscape.test.ts b/tests/converters/inkscape.test.ts
new file mode 100644
index 0000000..39d21c3
--- /dev/null
+++ b/tests/converters/inkscape.test.ts
@@ -0,0 +1,19 @@
+import { test } from "bun:test";
+import { convert } from "../../src/converters/inkscape.ts";
+import {
+  runConvertFailTest,
+  runConvertLogsStderror,
+  runConvertSuccessTest,
+} from "./helpers/converters.ts";
+
+test("convert resolves when execFile succeeds", async () => {
+  await runConvertSuccessTest(convert);
+});
+
+test("convert rejects when execFile fails", async () => {
+  await runConvertFailTest(convert);
+});
+
+test("convert logs stderr when present", async () => {
+  await runConvertLogsStderror(convert);
+});