Create tests for fix mapbox#2419

test/unit/ui/handler/drag_pan.test.js

@@ -0,0 +1,42 @@
+'use strict';
+
+const test = require('mapbox-gl-js-test').test;
+const util = require('../../../../src/util/util');
+const window = require('../../../../src/util/window');
+const Map = require('../../../../src/ui/map');
+const DOM = require('../../../../src/util/dom');
+const simulate = require('mapbox-gl-js-test/simulate_interaction');
+
+function createMap(options) {
+    return new Map(util.extend({
+        container: DOM.create('div', '', window.document.body),
+        style: {
+            "version": 8,
+            "sources": {},
+            "layers": []
+        }
+    }, options));
+}
+
+test('DragPanHandler stops dragging in response to dragPan.disable() mid-drag', (t) => {
+    const map = createMap();
+
+    const dragstart = t.spy();
+    const drag      = t.spy();
+    const dragend   = t.spy();
+
+    map.on('dragstart', dragstart);
+    map.on('drag',      drag);
+    map.on('dragend',   dragend);
+
+    simulate.mousedown(map.getCanvas());
+    simulate.mousemove(map.getCanvas());
+    t.ok(dragstart.calledOnce);
+    t.ok(drag.calledOnce);
+
+    map.dragPan.disable();
+    t.ok(dragend.calledOnce);
+
+    map.remove();
+    t.end();
+});