1 files changed, 111 insertions, 0 deletions
diff --git a/spec/javascripts/monitoring/graph/legend_spec.js b/spec/javascripts/monitoring/graph/legend_spec.js
new file mode 100644
index 00000000000..e877832dffd
--- /dev/null
+++ b/spec/javascripts/monitoring/graph/legend_spec.js
@@ -0,0 +1,111 @@
+import Vue from 'vue';
+import GraphLegend from '~/monitoring/components/graph/legend.vue';
+import measurements from '~/monitoring/utils/measurements';
+
+const createComponent = (propsData) => {
+  const Component = Vue.extend(GraphLegend);
+
+  return new Component({
+    propsData,
+  }).$mount();
+};
+
+function getTextFromNode(component, selector) {
+  return component.$el.querySelector(selector).firstChild.nodeValue.trim();
+}
+
+describe('GraphLegend', () => {
+  describe('Computed props', () => {
+    it('textTransform', () => {
+      const component = createComponent({
+        graphWidth: 500,
+        graphHeight: 300,
+        margin: measurements.large.margin,
+        measurements: measurements.large,
+        areaColorRgb: '#f0f0f0',
+        legendTitle: 'Title',
+        yAxisLabel: 'Values',
+        metricUsage: 'Value',
+      });
+
+      expect(component.textTransform).toContain('translate(15, 120) rotate(-90)');
+    });
+
+    it('xPosition', () => {
+      const component = createComponent({
+        graphWidth: 500,
+        graphHeight: 300,
+        margin: measurements.large.margin,
+        measurements: measurements.large,
+        areaColorRgb: '#f0f0f0',
+        legendTitle: 'Title',
+        yAxisLabel: 'Values',
+        metricUsage: 'Value',
+      });
+
+      expect(component.xPosition).toEqual(180);
+    });
+
+    it('yPosition', () => {
+      const component = createComponent({
+        graphWidth: 500,
+        graphHeight: 300,
+        margin: measurements.large.margin,
+        measurements: measurements.large,
+        areaColorRgb: '#f0f0f0',
+        legendTitle: 'Title',
+        yAxisLabel: 'Values',
+        metricUsage: 'Value',
+      });
+
+      expect(component.yPosition).toEqual(240);
+    });
+
+    it('rectTransform', () => {
+      const component = createComponent({
+        graphWidth: 500,
+        graphHeight: 300,
+        margin: measurements.large.margin,
+        measurements: measurements.large,
+        areaColorRgb: '#f0f0f0',
+        legendTitle: 'Title',
+        yAxisLabel: 'Values',
+        metricUsage: 'Value',
+      });
+
+      expect(component.rectTransform).toContain('translate(0, 120) rotate(-90)');
+    });
+  });
+
+  it('has 2 rect-axis-text rect svg elements', () => {
+    const component = createComponent({
+      graphWidth: 500,
+      graphHeight: 300,
+      margin: measurements.large.margin,
+      measurements: measurements.large,
+      areaColorRgb: '#f0f0f0',
+      legendTitle: 'Title',
+      yAxisLabel: 'Values',
+      metricUsage: 'Value',
+    });
+
+    expect(component.$el.querySelectorAll('.rect-axis-text').length).toEqual(2);
+  });
+
+  it('contains text to signal the usage, title and time', () => {
+    const component = createComponent({
+      graphWidth: 500,
+      graphHeight: 300,
+      margin: measurements.large.margin,
+      measurements: measurements.large,
+      areaColorRgb: '#f0f0f0',
+      legendTitle: 'Title',
+      yAxisLabel: 'Values',
+      metricUsage: 'Value',
+    });
+
+    expect(getTextFromNode(component, '.text-metric-title')).toEqual(component.legendTitle);
+    expect(getTextFromNode(component, '.text-metric-usage')).toEqual(component.metricUsage);
+    expect(getTextFromNode(component, '.label-axis-text')).toEqual(component.yAxisLabel);
+  });
+});