From aed078724557488a18d9897684913cc43ed99635 Mon Sep 17 00:00:00 2001
From: darialari <darialari@yandex-team.ru>
Date: Fri, 1 Nov 2024 11:45:30 +0300
Subject: [PATCH] fix(NumberInput): add rounding calculation result to step
 precision

---
 .../lab/NumberInput/__tests__/NumberInput.test.tsx    |  2 +-
 src/components/lab/NumberInput/utils.ts               | 11 +++++++++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/components/lab/NumberInput/__tests__/NumberInput.test.tsx b/src/components/lab/NumberInput/__tests__/NumberInput.test.tsx
index b4f9399bc3..859360ba67 100644
--- a/src/components/lab/NumberInput/__tests__/NumberInput.test.tsx
+++ b/src/components/lab/NumberInput/__tests__/NumberInput.test.tsx
@@ -113,7 +113,7 @@ describe('NumberInput input', () => {
 
         it('removes redundant zeros on blur', async () => {
             const handleUpdate = jest.fn();
-            render(<NumberInput allowDecimal onUpdate={handleUpdate} />);
+            render(<NumberInput allowDecimal step={0.1} onUpdate={handleUpdate} />);
             const input = getInput();
             input.focus();
             fireEvent.change(getInput(), {target: {value: '00001.10000'}});
diff --git a/src/components/lab/NumberInput/utils.ts b/src/components/lab/NumberInput/utils.ts
index a0d58375c6..d8afacf30d 100644
--- a/src/components/lab/NumberInput/utils.ts
+++ b/src/components/lab/NumberInput/utils.ts
@@ -119,7 +119,8 @@ export function clampToNearestStepValue({
 }) {
     const base = originalMin || 0;
     const min = originalMin ?? Number.MIN_SAFE_INTEGER;
-    let clampedValue = value;
+    let clampedValue = toFixedNumber(value, step);
+
     if (clampedValue > max) {
         clampedValue = max;
     } else if (clampedValue < min) {
@@ -150,7 +151,8 @@ export function clampToNearestStepValue({
             return greaterPossibleValue;
         }
     }
-    return clampedValue;
+
+    return toFixedNumber(clampedValue, step);
 }
 
 export function updateCursorPosition(
@@ -201,3 +203,8 @@ export function areStringRepresentationOfNumbersEqual(v1: string, v2: string) {
     }
     return false;
 }
+
+function toFixedNumber(value: number, baseStep: number): number {
+    const stepDecimalDigits = baseStep.toString().split('.')[1]?.length || 0;
+    return parseFloat(value.toFixed(stepDecimalDigits));
+}