Merge pull request #15504 from grafana/thresholds-sort-order

Fixing array direction, adding simple render test

packages/grafana-ui/src/components/Gauge/Gauge.test.tsx

@@ -84,9 +84,9 @@ describe('Get thresholds formatted', () => {
   it('should get the correct formatted values when thresholds are added', () => {
     const { instance } = setup({
       thresholds: [
-        { index: 2, value: 75, color: '#6ED0E0' },
-        { index: 1, value: 50, color: '#EAB839' },
         { index: 0, value: -Infinity, color: '#7EB26D' },
+        { index: 1, value: 50, color: '#EAB839' },
+        { index: 2, value: 75, color: '#6ED0E0' },
       ],
     });
 

packages/grafana-ui/src/components/Gauge/Gauge.tsx

@@ -98,16 +98,15 @@ export class Gauge extends PureComponent<Props> {
   getFormattedThresholds() {
     const { maxValue, minValue, thresholds, theme } = this.props;
 
-    const thresholdsSortedByIndex = [...thresholds].sort((t1, t2) => t1.index - t2.index);
-    const lastThreshold = thresholdsSortedByIndex[thresholdsSortedByIndex.length - 1];
+    const lastThreshold = thresholds[thresholds.length - 1];
 
     return [
-      ...thresholdsSortedByIndex.map(threshold => {
+      ...thresholds.map(threshold => {
         if (threshold.index === 0) {
           return { value: minValue, color: getColorFromHexRgbOrName(threshold.color, theme.type) };
         }
 
-        const previousThreshold = thresholdsSortedByIndex[threshold.index - 1];
+        const previousThreshold = thresholds[threshold.index - 1];
         return { value: threshold.value, color: getColorFromHexRgbOrName(previousThreshold.color, theme.type) };
       }),
       { value: maxValue, color: getColorFromHexRgbOrName(lastThreshold.color, theme.type) },

packages/grafana-ui/src/components/ThresholdsEditor/ThresholdsEditor.test.tsx

 import React, { ChangeEvent } from 'react';
-import { shallow } from 'enzyme';
-
+import { mount } from 'enzyme';
 import { ThresholdsEditor, Props } from './ThresholdsEditor';
 
-const setup = (propOverrides?: object) => {
+const setup = (propOverrides?: Partial<Props>) => {
   const props: Props = {
     onChange: jest.fn(),
     thresholds: [],
@@ -11,12 +10,26 @@ const setup = (propOverrides?: object) => {
 
   Object.assign(props, propOverrides);
 
-  return shallow(<ThresholdsEditor {...props} />).instance() as ThresholdsEditor;
+  const wrapper = mount(<ThresholdsEditor {...props} />);
+  const instance = wrapper.instance() as ThresholdsEditor;
+
+  return {
+    instance,
+    wrapper,
+  };
 };
 
+describe('Render', () => {
+  it('should render with base threshold', () => {
+    const { wrapper } = setup();
+
+    expect(wrapper).toMatchSnapshot();
+  });
+});
+
 describe('Initialization', () => {
   it('should add a base threshold if missing', () => {
-    const instance = setup();
+    const { instance } = setup();
 
     expect(instance.state.thresholds).toEqual([{ index: 0, value: -Infinity, color: '#7EB26D' }]);
   });
@@ -24,7 +37,7 @@ describe('Initialization', () => {
 
 describe('Add threshold', () => {
   it('should not add threshold at index 0', () => {
-    const instance = setup();
+    const { instance } = setup();
 
     instance.onAddThreshold(0);
 
@@ -32,32 +45,32 @@ describe('Add threshold', () => {
   });
 
   it('should add threshold', () => {
-    const instance = setup();
+    const { instance } = setup();
 
     instance.onAddThreshold(1);
 
     expect(instance.state.thresholds).toEqual([
-      { index: 1, value: 50, color: '#EAB839' },
       { index: 0, value: -Infinity, color: '#7EB26D' },
+      { index: 1, value: 50, color: '#EAB839' },
     ]);
   });
 
   it('should add another threshold above a first', () => {
-    const instance = setup({
+    const { instance } = setup({
       thresholds: [{ index: 0, value: -Infinity, color: '#7EB26D' }, { index: 1, value: 50, color: '#EAB839' }],
     });
 
     instance.onAddThreshold(2);
 
     expect(instance.state.thresholds).toEqual([
-      { index: 2, value: 75, color: '#6ED0E0' },
-      { index: 1, value: 50, color: '#EAB839' },
       { index: 0, value: -Infinity, color: '#7EB26D' },
+      { index: 1, value: 50, color: '#EAB839' },
+      { index: 2, value: 75, color: '#6ED0E0' },
     ]);
   });
 
   it('should add another threshold between first and second index', () => {
-    const instance = setup({
+    const { instance } = setup({
       thresholds: [
         { index: 0, value: -Infinity, color: '#7EB26D' },
         { index: 1, value: 50, color: '#EAB839' },
@@ -68,10 +81,10 @@ describe('Add threshold', () => {
     instance.onAddThreshold(2);
 
     expect(instance.state.thresholds).toEqual([
-      { index: 3, value: 75, color: '#6ED0E0' },
-      { index: 2, value: 62.5, color: '#EF843C' },
-      { index: 1, value: 50, color: '#EAB839' },
       { index: 0, value: -Infinity, color: '#7EB26D' },
+      { index: 1, value: 50, color: '#EAB839' },
+      { index: 2, value: 62.5, color: '#EF843C' },
+      { index: 3, value: 75, color: '#6ED0E0' },
     ]);
   });
 });
@@ -83,7 +96,7 @@ describe('Remove threshold', () => {
       { index: 1, value: 50, color: '#EAB839' },
       { index: 2, value: 75, color: '#6ED0E0' },
     ];
-    const instance = setup({ thresholds });
+    const { instance } = setup({ thresholds });
 
     instance.onRemoveThreshold(thresholds[0]);
 
@@ -96,9 +109,7 @@ describe('Remove threshold', () => {
       { index: 1, value: 50, color: '#EAB839' },
       { index: 2, value: 75, color: '#6ED0E0' },
     ];
-    const instance = setup({
-      thresholds,
-    });
+    const { instance } = setup({ thresholds });
 
     instance.onRemoveThreshold(thresholds[1]);
 
@@ -116,7 +127,7 @@ describe('change threshold value', () => {
       { index: 1, value: 50, color: '#EAB839' },
       { index: 2, value: 75, color: '#6ED0E0' },
     ];
-    const instance = setup({ thresholds });
+    const { instance } = setup({ thresholds });
 
     const mockEvent = ({ target: { value: '12' } } as any) as ChangeEvent<HTMLInputElement>;
 
@@ -126,7 +137,7 @@ describe('change threshold value', () => {
   });
 
   it('should update value', () => {
-    const instance = setup();
+    const { instance } = setup();
     const thresholds = [
       { index: 0, value: -Infinity, color: '#7EB26D' },
       { index: 1, value: 50, color: '#EAB839' },
@@ -150,24 +161,24 @@ describe('change threshold value', () => {
 });
 
 describe('on blur threshold value', () => {
-  it('should resort rows and update indexes', () => {
-    const instance = setup();
+  it.only('should resort rows and update indexes', () => {
+    const { instance } = setup();
     const thresholds = [
       { index: 0, value: -Infinity, color: '#7EB26D' },
       { index: 1, value: 78, color: '#EAB839' },
       { index: 2, value: 75, color: '#6ED0E0' },
     ];
 
-    instance.state = {
+    instance.setState({
       thresholds,
-    };
+    });
 
     instance.onBlur();
 
     expect(instance.state.thresholds).toEqual([
-      { index: 2, value: 78, color: '#EAB839' },
-      { index: 1, value: 75, color: '#6ED0E0' },
       { index: 0, value: -Infinity, color: '#7EB26D' },
+      { index: 1, value: 75, color: '#6ED0E0' },
+      { index: 2, value: 78, color: '#EAB839' },
     ]);
   });
 });

packages/grafana-ui/src/components/ThresholdsEditor/ThresholdsEditor.tsx

 import React, { PureComponent, ChangeEvent } from 'react';
 import { Threshold } from '../../types';
-import { ColorPicker } from '../ColorPicker/ColorPicker';
-import { PanelOptionsGroup } from '../PanelOptionsGroup/PanelOptionsGroup';
+import { ColorPicker } from '..';
+import { PanelOptionsGroup } from '..';
 import { colors } from '../../utils';
 import { getColorFromHexRgbOrName, ThemeContext } from '@grafana/ui';
 
@@ -54,16 +54,16 @@ export class ThresholdsEditor extends PureComponent<Props, State> {
     const value = afterThresholdValue - (afterThresholdValue - beforeThresholdValue) / 2;
 
     // Set a color
-    const color = colors.filter(c => newThresholds.some(t => t.color === c) === false)[0];
+    const color = colors.filter(c => !newThresholds.some(t => t.color === c))[0];
 
     this.setState(
       {
         thresholds: this.sortThresholds([
           ...newThresholds,
           {
+            color,
             index,
             value: value as number,
-            color,
           },
         ]),
       },
@@ -137,10 +137,11 @@ export class ThresholdsEditor extends PureComponent<Props, State> {
   onBlur = () => {
     this.setState(prevState => {
       const sortThresholds = this.sortThresholds([...prevState.thresholds]);
-      let index = sortThresholds.length - 1;
+      let index = 0;
       sortThresholds.forEach(t => {
-        t.index = index--;
+        t.index = index++;
       });
+
       return { thresholds: sortThresholds };
     });
 
@@ -153,12 +154,13 @@ export class ThresholdsEditor extends PureComponent<Props, State> {
 
   sortThresholds = (thresholds: Threshold[]) => {
     return thresholds.sort((t1, t2) => {
-      return t2.value - t1.value;
+      return t1.value - t2.value;
     });
   };
 
   renderInput = (threshold: Threshold) => {
     const value = threshold.index === 0 ? 'Base' : threshold.value;
+
     return (
       <div className="thresholds-row-input-inner">
         <span className="thresholds-row-input-inner-arrow" />
@@ -190,14 +192,16 @@ export class ThresholdsEditor extends PureComponent<Props, State> {
 
   render() {
     const { thresholds } = this.state;
-
     return (
       <ThemeContext.Consumer>
         {theme => {
           return (
             <PanelOptionsGroup title="Thresholds">
               <div className="thresholds">
-                {thresholds.map((threshold, index) => {
+                {thresholds
+                  .slice(0)
+                  .reverse()
+                  .map((threshold, index) => {
                     return (
                       <div className="thresholds-row" key={`${threshold.index}-${index}`}>
                         <div

packages/grafana-ui/src/components/ThresholdsEditor/__snapshots__/ThresholdsEditor.test.tsx.snap

+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Render should render with base threshold 1`] = `
+<ContextConsumer>
+  <Component />
+</ContextConsumer>
+`;

public/app/features/dashboard/state/DashboardMigrator.ts

@@ -399,6 +399,12 @@ export class DashboardMigrator {
             prefix: panel.options.prefix,
             suffix: panel.options.suffix,
           };
+
+          // correct order
+          if (panel.options.thresholds) {
+            panel.options.thresholds.reverse();
+          }
+
           // this options prop was due to a bug
           delete panel.options.options;
           delete panel.options.unit;