fix(module:input-number): value out of range when hold shift key (#8936)

Author: HyperLife1119

components/input-number/input-number.component.spec.ts

@@ -99,15 +99,34 @@ describe('Input number', () => {
     expect(component.value).toBe(0);
   });
 
-  it('should be update value through the handler with hold shift key', () => {
-    upStepByHandler({ shiftKey: true });
-    expect(component.value).toBe(10);
-    upStepByHandler({ shiftKey: true });
-    expect(component.value).toBe(20);
-    downStepByHandler({ shiftKey: true });
-    expect(component.value).toBe(10);
-    downStepByHandler({ shiftKey: true });
-    expect(component.value).toBe(0);
+  describe('should be update value through the handler with hold shift key', () => {
+    it('normal', () => {
+      upStepByHandler({ shiftKey: true });
+      expect(component.value).toBe(10);
+      upStepByHandler({ shiftKey: true });
+      expect(component.value).toBe(20);
+
+      downStepByHandler({ shiftKey: true });
+      expect(component.value).toBe(10);
+      downStepByHandler({ shiftKey: true });
+      expect(component.value).toBe(0);
+    });
+
+    it('with min & max', () => {
+      component.min = -5;
+      component.max = 5;
+      fixture.detectChanges();
+
+      for (let index = 0; index < 10; index++) {
+        upStepByHandler({ shiftKey: true });
+      }
+      expect(component.value).toBe(component.max);
+
+      for (let index = 0; index < 10; index++) {
+        downStepByHandler({ shiftKey: true });
+      }
+      expect(component.value).toBe(component.min);
+    });
   });
 
   it('should be update value through user typing', () => {

components/input-number/input-number.component.ts

@@ -368,7 +368,7 @@ export class NzInputNumberComponent implements OnInit, ControlValueAccessor {
     const places = getDecimalPlaces(step);
     const multiple = Math.pow(10, places);
     // Convert floating point numbers to integers to avoid floating point math errors
-    this.setValue((Math.round((this.value() || 0) * multiple) + Math.round(step * multiple)) / multiple);
+    this.setValue((Math.round((this.value() || 0) * multiple) + Math.round(step * multiple)) / multiple, true);
 
     this.nzOnStep.emit({
       type: up ? 'up' : 'down',