test: add more unit tests

src/data/utils.spec.js

@@ -1,8 +1,24 @@
-import { formatAPITime } from './utils';
+import { formatAPITime, parseAPITime } from './utils';
 
 describe('formatAPITime', () => {
   test('matches api format', () => {
     const d = new Date(2020, 1, 2);
     expect(formatAPITime(d)).toBe('20200202');
   });
 });
+
+describe('parseAPITime', () => {
+  test('default', () => {
+    const d = new Date(2020, 1, 2);
+    expect(parseAPITime(20200202).valueOf()).toBe(d.valueOf());
+  });
+  test('round trip', () => {
+    const d = new Date(2020, 5, 8);
+    expect(parseAPITime(formatAPITime(d)).valueOf()).toBe(d.valueOf());
+  });
+  test('strip to date', () => {
+    const d = new Date(2020, 5, 8, 5, 2);
+    const day = new Date(2020, 5, 8);
+    expect(parseAPITime(formatAPITime(d)).valueOf()).toBe(day.valueOf());
+  });
+});

src/maps/index.js

@@ -6,8 +6,8 @@ import countyRaw from './processed/county.csv.js';
 // import neighborhoodRaw from './processed/swpa/neighborhood.csv.js';
 // import zipRaw from './processed/swpa/zip.csv.js';
 // import swpaFilterInfo from './processed/swpa/filterInfo.json';
-import { levelMegaCounty } from '../stores/constants';
 
+const levelMegaCountyId = 'mega-county';
 /**
  * @typedef {object} NameInfo
  * @property {string} name name for param
@@ -47,7 +47,7 @@ const megaCountyInfo = stateInfo.map((info) => ({
   name: `Rest of ${info.name}`,
   displayName: `Rest of ${info.displayName}`,
   population: null,
-  level: levelMegaCounty.id,
+  level: levelMegaCountyId,
   lat: null,
   long: null,
 }));
@@ -61,7 +61,7 @@ export const bounds = boundsInfo;
 export function loadSources(additionalProperties = {}) {
   // mark to be loaded as fast as possible
   return import(/* webpackPreload: true */ './geo').then((r) =>
-    r.default(stateInfo, countyInfo, msaInfo, levelMegaCounty.id, additionalProperties),
+    r.default(stateInfo, countyInfo, msaInfo, levelMegaCountyId, additionalProperties),
   );
 }
 

src/stores/colorScales.js

@@ -80,7 +80,7 @@ const lookup = {
   interpolateYlOrBr,
 };
 
-const DEFAULT_COLOR_SCALE = interpolateYlOrRd;
+export const DEFAULT_COLOR_SCALE = interpolateYlOrRd;
 
 export function resolveColorScale(colorScale) {
   if (!colorScale) {

src/stores/colorScales.spec.js

@@ -0,0 +1,20 @@
+import { resolveColorScale, DEFAULT_COLOR_SCALE } from './colorScales';
+import { interpolateBlues } from 'd3-scale-chromatic';
+
+describe('colorScales', () => {
+  test('default', () => {
+    expect(typeof resolveColorScale()).toBe('function');
+    expect(typeof resolveColorScale()(0.5)).toBe('string');
+    expect(resolveColorScale()).toBe(DEFAULT_COLOR_SCALE);
+  });
+  test('named', () => {
+    expect(resolveColorScale('interpolateBlues')).toBe(interpolateBlues);
+  });
+  test('invalid name', () => {
+    expect(resolveColorScale('interpolateBluesX')).toBe(DEFAULT_COLOR_SCALE);
+  });
+  test('function', () => {
+    const v = () => 'red';
+    expect(resolveColorScale(v)).toBe(v);
+  });
+});

src/stores/constants.js

@@ -1,4 +1,5 @@
-import { formatAPITime, isCasesSignal, isDeathSignal, isPropSignal, isCountSignal } from '../data';
+import { isCasesSignal, isDeathSignal, isPropSignal, isCountSignal } from '../data/signals';
+import { formatAPITime } from '../data/utils';
 import { format } from 'd3-format';
 import descriptions from './descriptions.generated.json';
 import '!file-loader?name=descriptions.raw.txt!./descriptions.raw.txt';

src/stores/constants.spec.js

@@ -0,0 +1,29 @@
+/// <reference types="jest" />
+import { defaultSensorId, EPIDATA_CASES_OR_DEATH_VALUES, getLevelInfo, sensorList } from './constants';
+
+describe('defaultSensorId', () => {
+  test('matches', () => {
+    expect(defaultSensorId).toBe('doctor-visits');
+  });
+});
+
+describe('sensorList', () => {
+  test.each(sensorList.map((d) => [d]))('has structure %s', (sensor) => {
+    expect(typeof sensor.key).toBe('string');
+    expect(typeof sensor.name).toBe('string');
+    if (sensor.isCasesOrDeath) {
+      expect(Object.keys(sensor.casesOrDeathSignals)).toEqual(EPIDATA_CASES_OR_DEATH_VALUES);
+    }
+  });
+});
+
+describe('getLevelInfo', () => {
+  test('existing', () => {
+    expect(getLevelInfo('county').id).toBe('county');
+    expect(getLevelInfo('county').label).toBe('County');
+  });
+  test('invalid', () => {
+    expect(getLevelInfo('test').id).toBe('test');
+    expect(getLevelInfo('test').label).toBe('TEST');
+  });
+});

src/util.spec.js

@@ -0,0 +1,33 @@
+import { getTextColorBasedOnBackground, zip } from './util';
+import { rgb } from 'd3-color';
+
+describe('getTextColorBasedOnBackground', () => {
+  test('white text on black bg', () => {
+    expect(rgb(getTextColorBasedOnBackground('black')).formatHex()).toBe('#ffffff');
+  });
+  test('black text on dark grey bg', () => {
+    expect(rgb(getTextColorBasedOnBackground('darkgrey')).formatHex()).toBe('#000000');
+  });
+  test('black text on white bg', () => {
+    expect(rgb(getTextColorBasedOnBackground('white')).formatHex()).toBe('#000000');
+  });
+});
+
+describe('zip', () => {
+  test('simple', () => {
+    expect(zip([0, 1, 2], [1, 2, 4])).toEqual([
+      [0, 1],
+      [1, 2],
+      [2, 4],
+    ]);
+    expect(zip([0, 1, 2], [1, 2])).toEqual([
+      [0, 1],
+      [1, 2],
+      [2, undefined],
+    ]);
+    expect(zip([0, 1], [1, 2, 3])).toEqual([
+      [0, 1],
+      [1, 2],
+    ]);
+  });
+});