Tests: Moved issue-test #4536 to unit-tests.

highcharts · Jun 25, 2019 · da8c6da · da8c6da
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diff --git a/samples/issues/highcharts-4.1.8/4536-zoom-in-left-category/demo.details b/samples/issues/highcharts-4.1.8/4536-zoom-in-left-category/demo.details
diff --git a/samples/issues/highcharts-4.1.8/4536-zoom-in-left-category/demo.html b/samples/issues/highcharts-4.1.8/4536-zoom-in-left-category/demo.html
diff --git a/samples/issues/highcharts-4.1.8/4536-zoom-in-left-category/demo.js b/samples/issues/highcharts-4.1.8/4536-zoom-in-left-category/demo.js
diff --git a/samples/unit-tests/chart/zoomtype/demo.js b/samples/unit-tests/chart/zoomtype/demo.js
@@ -1,3 +1,57 @@
+QUnit.test("Zooming too tight on left category should show full category.(#4536)", function (assert) {
+    var chart = $('#container').highcharts({
+        chart: {
+            type: 'column'
+        },
+        xAxis: {
+            categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
+            minRange: 0.99
+        },
+
+        series: [{
+            data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
+        }, {
+            data: [144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4, 29.9, 71.5, 106.4, 129.2]
+        }, {
+            data: [144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4, 29.9, 71.5, 106.4, 129.2]
+        }]
+    }).highcharts();
+
+    assert.strictEqual(
+        chart.xAxis[0].min,
+        0,
+        "Starting min"
+    );
+    assert.strictEqual(
+        chart.xAxis[0].max,
+        11,
+        "Starting max"
+    );
+
+
+    chart.xAxis[0].setExtremes(0, 0.5);
+    assert.strictEqual(
+        chart.xAxis[0].min,
+        0,
+        "Ending min"
+    );
+    assert.strictEqual(
+        chart.xAxis[0].max,
+        0.99,
+        "Ending max"
+    );
+    assert.strictEqual(
+        typeof chart.xAxis[0].minPixelPadding,
+        'number',
+        "Category padding is a number"
+    );
+    assert.strictEqual(
+        chart.xAxis[0].minPixelPadding > 0,
+        true,
+        "Category padding is more than 0"
+    );
+});
+
 /* global TestController */
 QUnit.test('Zoom type', function (assert) {