From 942bb47e318029110e427c132355196360043ffd Mon Sep 17 00:00:00 2001
From: "Andy.Bloomfield" <andy.bloomfield@wtwco.com>
Date: Wed, 30 Apr 2025 14:14:45 +0100
Subject: [PATCH 1/2] fix(1532): When precision is not specified on "separator"
 mask error "toFixed() digits argument must be between 0 and 100"

Include additional logic to check if separatorPrecision is Infinity or not before checking if > 0
---
 projects/ngx-mask-lib/src/lib/ngx-mask.service.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/projects/ngx-mask-lib/src/lib/ngx-mask.service.ts b/projects/ngx-mask-lib/src/lib/ngx-mask.service.ts
index bd95795c..a4773491 100644
--- a/projects/ngx-mask-lib/src/lib/ngx-mask.service.ts
+++ b/projects/ngx-mask-lib/src/lib/ngx-mask.service.ts
@@ -801,7 +801,7 @@ export class NgxMaskService extends NgxMaskApplierService {
 
         if (
             separatorExpression.indexOf('2') > 0 ||
-            (this.leadZero && Number(separatorPrecision) > 0)
+            (this.leadZero && separatorPrecision != Infinity && Number(separatorPrecision) > 0)
         ) {
             if (this.decimalMarker === MaskExpression.COMMA && this.leadZero) {
                 value = value.replace(',', '.');

From 578c25e9f8a560078994c53e1e855d3bba917991 Mon Sep 17 00:00:00 2001
From: "Andy.Bloomfield" <andy.bloomfield@wtwco.com>
Date: Mon, 9 Jun 2025 17:10:06 +0100
Subject: [PATCH 2/2] New unit test for service change

---
 .../src/test/mask.service.spec.ts             | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 projects/ngx-mask-lib/src/test/mask.service.spec.ts

diff --git a/projects/ngx-mask-lib/src/test/mask.service.spec.ts b/projects/ngx-mask-lib/src/test/mask.service.spec.ts
new file mode 100644
index 00000000..50642bca
--- /dev/null
+++ b/projects/ngx-mask-lib/src/test/mask.service.spec.ts
@@ -0,0 +1,30 @@
+import { TestBed } from '@angular/core/testing';
+import {  NgxMaskService,provideNgxMask} from 'ngx-mask';
+
+describe('NgxMaskService', () => {
+  let service: NgxMaskService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [
+        provideNgxMask(),
+        NgxMaskService
+      ]
+    });
+    service = TestBed.inject(NgxMaskService);
+  });
+
+  it('should not call toFixed with "separator" precision and leadZero is true', () => {
+    const originalToFixed = Number.prototype.toFixed;
+    const spy = spyOn(Number.prototype, 'toFixed').and.callFake(function (this: Number, digits: number) {
+      if (!isFinite(digits)) {
+        fail(` toFixed() called with invalid precision: ${digits}`);
+      }
+      return originalToFixed.call(this, digits);
+    });
+    service.leadZero = true;
+    service._checkPrecision('separator', '123456.78');
+
+    expect(spy).not.toHaveBeenCalled();
+  });
+});