From dbc2cd346b880607e1b12ae6f14150c47f469b28 Mon Sep 17 00:00:00 2001
From: rppig42 <48581046+rppig42@users.noreply.github.com>
Date: Fri, 17 Apr 2020 19:36:37 +0800
Subject: [PATCH] fix(module:popover): fix programmatically changing not
 trigger ngModelChange (#5053)

Co-authored-by: SamYum <rppig42@gmail.com>
---
 components/tooltip/base.ts         | 1 +
 components/tooltip/tooltip.spec.ts | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/components/tooltip/base.ts b/components/tooltip/base.ts
index f0979092265..43169a98cb6 100644
--- a/components/tooltip/base.ts
+++ b/components/tooltip/base.ts
@@ -352,6 +352,7 @@ export abstract class NzTooltipBaseComponent implements OnDestroy {
     const visible = toBoolean(value);
     if (this._visible !== visible) {
       this._visible = visible;
+      this.nzVisibleChange.next(visible);
     }
   }
 
diff --git a/components/tooltip/tooltip.spec.ts b/components/tooltip/tooltip.spec.ts
index 5ee12fc9134..9e10e659b98 100644
--- a/components/tooltip/tooltip.spec.ts
+++ b/components/tooltip/tooltip.spec.ts
@@ -117,12 +117,12 @@ describe('nz-tooltip', () => {
       component.visible = true;
       waitingForTooltipToggling();
       expect(overlayContainerElement.textContent).toContain(title);
-      expect(component.visibilityTogglingCount).toBe(0);
+      expect(component.visibilityTogglingCount).toBe(1);
 
       component.visible = false;
       waitingForTooltipToggling();
       expect(overlayContainerElement.textContent).not.toContain(title);
-      expect(component.visibilityTogglingCount).toBe(0);
+      expect(component.visibilityTogglingCount).toBe(2);
     }));
   });