diff --git a/apps/frontend/src/utils/general.test.ts b/apps/frontend/src/utils/general.test.ts
new file mode 100644
index 00000000..2595d4d3
--- /dev/null
+++ b/apps/frontend/src/utils/general.test.ts
@@ -0,0 +1,21 @@
+import { expect, test } from 'vitest';
+import { ftpPercentFromWatt, wattFromFtpPercent } from './general';
+
+test('Watt values passed through ftpPercentFromWatt and wattFromFtpPercent ends up with the entered Watt value', () => {
+  let failures = [];
+  for (let ftp = 200; ftp <= 500; ftp += 1) {
+    for (let watt = 0; watt <= 1000; watt += 1) {
+      const ftpPct = ftpPercentFromWatt(watt, ftp);
+      const wattFromFtpPct = wattFromFtpPercent(ftpPct, ftp);
+      if (wattFromFtpPct !== watt) {
+        failures.push({
+          watt,
+          exactWattFromFtpPct: (ftpPct * ftp) / 100,
+          ftpPct,
+          ftp,
+        });
+      }
+    }
+  }
+  expect(failures.length).toBe(0);
+});
diff --git a/apps/frontend/src/utils/general.ts b/apps/frontend/src/utils/general.ts
index 5323cada..b1ebddad 100644
--- a/apps/frontend/src/utils/general.ts
+++ b/apps/frontend/src/utils/general.ts
@@ -50,23 +50,6 @@ export const ftpPercentFromWatt = (watt: number, ftp: number) =>
 export const wattFromFtpPercent = (ftpPercent: number, ftp: number) =>
   Math.round((ftpPercent * ftp) / 100);
 
-let failures = [];
-for (let ftp = 1; ftp <= 500; ftp += 1) {
-  for (let watt = 0; watt <= 1000; watt += 1) {
-    const ftpPct = Math.floor(1000 * (watt / ftp)) / 10;
-    const wattFromFtpPct = Math.round((ftpPct * ftp) / 100);
-    if (wattFromFtpPct !== watt) {
-      failures.push({
-        watt,
-        exactWattFromFtpPct: (ftpPct * ftp) / 100,
-        ftpPct,
-        ftp,
-      });
-    }
-  }
-}
-console.log('watt', failures);
-
 export const editable = <T>(data: T): Editable<T> => ({ touched: false, data });
 export const touched = <T>(data: T): Editable<T> => ({ touched: true, data });
 export const addEditableError = <T>(editable: Editable<T>, error: string) => ({