fix(axis): ordinal number ending fix for the weekly resolution

integration/tests/axis_stories.test.ts

@@ -33,16 +33,6 @@ describe('Axis stories', () => {
       'http://localhost:9001/?path=/story/area-chart--timeslip&globals=theme:light&knob-Minor%20grid%20lines=true&knob-Shift%20time=8.5&knob-Shorter%20X%20axis%20minor%20whiskers=true&knob-Stretch%20time=4.8&knob-Time%20zoom=120&knob-X%20axis%20minor%20whiskers=true&knob-showOverlappingLabels%20time%20axis=true&knob-showOverlappingTicks%20time%20axis=true',
     );
   });
-  it('should extend the domain on the right with one bin width with custom bin width', async () => {
-    await common.expectChartAtUrlToMatchScreenshot(
-      'http://localhost:9001/?path=/story/bar-chart--test-discover&globals=theme:light&knob-Minor%20grid%20lines=true&knob-Pan%20time=0&knob-Shift%20time=0&knob-Shorter%20X%20axis%20minor%20whiskers=true&knob-Stretch%20time=3.8&knob-Time%20zoom=120&knob-X%20axis%20minor%20whiskers=true&knob-layerCount=3&knob-showOverlappingLabels%20time%20axis=true&knob-showOverlappingTicks%20time%20axis=true&knob-use%20custom%20minInterval%20of%2030s=true&knob-use%20multilayer%20time%20axis=true',
-    );
-  });
-  it('should extend the domain on the right with one bin width without custom bin width', async () => {
-    await common.expectChartAtUrlToMatchScreenshot(
-      'http://localhost:9001/?path=/story/bar-chart--test-discover&globals=theme:light&knob-Minor%20grid%20lines=true&knob-Pan%20time=0&knob-Shift%20time=0&knob-Shorter%20X%20axis%20minor%20whiskers=true&knob-Stretch%20time=3.8&knob-Time%20zoom=120&knob-X%20axis%20minor%20whiskers=true&knob-layerCount=3&knob-showOverlappingLabels%20time%20axis=true&knob-showOverlappingTicks%20time%20axis=true&knob-use%20custom%20minInterval%20of%2030s=false&knob-use%20multilayer%20time%20axis=true',
-    );
-  });
   it('should not show a raster that is finer than the bin width (minInterval)', async () => {
     await common.expectChartAtUrlToMatchScreenshot(
       'http://localhost:9001/?path=/story/area-chart--timeslip&Bin%20width%20in%20ms%20(0:%20none%20specifed)=60000&Minor%20grid%20lines=on&Shift%20time=0&Stretch%20time=-0.4&Time%20zoom=2&globals=theme:light&knob-Bin%20width%20in%20ms%20(0:%20none%20specifed)=60000&knob-Minor%20grid%20lines=true&knob-Shift%20time=0&knob-Stretch%20time=-0.4&knob-Time%20zoom=2&knob-layerCount=3&layerCount=3',
@@ -58,6 +48,31 @@ describe('Axis stories', () => {
       'http://localhost:9001/?path=/story/area-chart--timeslip&globals=theme:light&knob-Bin width in ms (0: none specifed)=0&knob-Minor grid lines=true&knob-Shift time=8.5&knob-Shorter X axis minor whiskers=true&knob-Stretch time=6.8&knob-Time zoom=120&knob-X axis minor whiskers=true&knob-fallback placement=left-start&knob-layerCount=3&knob-placement=left&knob-placement offset=5&knob-showOverlappingLabels time axis=true&knob-showOverlappingTicks time axis=true&knob-stickTo=MousePosition&knob-Horizontal axis title=&knob-Top X axis=true',
     );
   });
+  it('uses proper english ending at a daily resolution, 30th....14th', async () => {
+    await common.expectChartAtUrlToMatchScreenshot(
+      'http://localhost:9001/?path=/story/area-chart--timeslip&globals=theme:light&knob-Bin width in ms (0: none specifed)=0&knob-Minor grid lines=true&knob-Shift time=-7.1&knob-Stretch time=6.6&knob-Time zoom=120&knob-layerCount=3&knob-Horizontal axis title=&knob-Top X axis=&knob-showOverlappingTicks time axis=&knob-showOverlappingLabels time axis=',
+    );
+  });
+  it('uses proper english ending at a daily resolution, 10th...25th', async () => {
+    await common.expectChartAtUrlToMatchScreenshot(
+      'http://localhost:9001/?path=/story/area-chart--timeslip&globals=theme:light&knob-Bin width in ms (0: none specifed)=0&knob-Minor grid lines=true&knob-Shift time=-9.8&knob-Stretch time=6.6&knob-Time zoom=120&knob-layerCount=3&knob-Horizontal axis title=&knob-Top X axis=&knob-showOverlappingTicks time axis=&knob-showOverlappingLabels time axis=',
+    );
+  });
+  it('uses proper english ending at a weekly resolution', async () => {
+    await common.expectChartAtUrlToMatchScreenshot(
+      'http://localhost:9001/?path=/story/area-chart--timeslip&globals=theme:light&knob-Bin width in ms (0: none specifed)=0&knob-Minor grid lines=true&knob-Shift time=-8.3&knob-Stretch time=10&knob-Time zoom=120&knob-layerCount=3&knob-Horizontal axis title=&knob-Top X axis=&knob-showOverlappingTicks time axis=&knob-showOverlappingLabels time axis=',
+    );
+  });
+  it('should extend the domain on the right with one bin width with custom bin width', async () => {
+    await common.expectChartAtUrlToMatchScreenshot(
+      'http://localhost:9001/?path=/story/bar-chart--test-discover&globals=theme:light&knob-Minor%20grid%20lines=true&knob-Pan%20time=0&knob-Shift%20time=0&knob-Shorter%20X%20axis%20minor%20whiskers=true&knob-Stretch%20time=3.8&knob-Time%20zoom=120&knob-X%20axis%20minor%20whiskers=true&knob-layerCount=3&knob-showOverlappingLabels%20time%20axis=true&knob-showOverlappingTicks%20time%20axis=true&knob-use%20custom%20minInterval%20of%2030s=true&knob-use%20multilayer%20time%20axis=true',
+    );
+  });
+  it('should extend the domain on the right with one bin width without custom bin width', async () => {
+    await common.expectChartAtUrlToMatchScreenshot(
+      'http://localhost:9001/?path=/story/bar-chart--test-discover&globals=theme:light&knob-Minor%20grid%20lines=true&knob-Pan%20time=0&knob-Shift%20time=0&knob-Shorter%20X%20axis%20minor%20whiskers=true&knob-Stretch%20time=3.8&knob-Time%20zoom=120&knob-X%20axis%20minor%20whiskers=true&knob-layerCount=3&knob-showOverlappingLabels%20time%20axis=true&knob-showOverlappingTicks%20time%20axis=true&knob-use%20custom%20minInterval%20of%2030s=false&knob-use%20multilayer%20time%20axis=true',
+    );
+  });
   it('renders multilayer time axis with a single point and an arbitrary non-degenerate domain', async () => {
     await common.expectChartAtUrlToMatchScreenshot(
       'http://localhost:9001/?path=/story/bar-chart--test-single-histogram-bar-chart&globals=theme:light&knob-non-round time domain start=true&knob-use multilayer time axis=true&knob-use lines instead of bars=true',

packages/charts/src/chart_types/xy_chart/axes/timeslip/rasters.ts

@@ -86,15 +86,32 @@ const hourFormat: Partial<ConstructorParameters<typeof Intl.DateTimeFormat>[1]>
   hour12: false,
 };
 
+const englishOrdinalEndings = {
+  zero: 'th',
+  one: 'st',
+  two: 'nd',
+  few: 'rd',
+  many: 'th',
+  other: 'th',
+};
+const englishPluralRules = new Intl.PluralRules('en-US', { type: 'ordinal' });
+const englishOrdinalEnding = (signedNumber: number) => englishOrdinalEndings[englishPluralRules.select(signedNumber)];
+
 /** @internal */
 export const rasters = ({ minimumTickPixelDistance, locale }: RasterConfig, timeZone: string) => {
-  const minorDayFormat = new Intl.DateTimeFormat(locale, { day: 'numeric', timeZone }).format;
+  const minorDayBaseFormat = new Intl.DateTimeFormat(locale, { day: 'numeric', timeZone }).format;
+  const minorDayFormat = (d: number) => {
+    const numberString = minorDayBaseFormat(d);
+    const number = Number.parseInt(numberString, 10);
+    return locale.substr(0, 2) === 'en' ? `${numberString}${englishOrdinalEnding(number)}` : numberString;
+  };
   const detailedDayFormat = new Intl.DateTimeFormat(locale, {
     year: 'numeric',
     month: 'short',
     day: 'numeric',
     timeZone,
   }).format;
+
   const detailedHourFormatBase = new Intl.DateTimeFormat(locale, {
     year: 'numeric',
     month: 'short',
@@ -231,21 +248,7 @@ export const rasters = ({ minimumTickPixelDistance, locale }: RasterConfig, time
       }
     },
     detailedLabelFormat: detailedDayFormat,
-    minorTickLabelFormat: (d) => {
-      const numberString = minorDayFormat(d);
-      const number = Number.parseInt(numberString, 10);
-      return locale.substr(0, 2) === 'en'
-        ? `${numberString}${
-            number === 1 || number === 21 || number === 31
-              ? 'st'
-              : number === 2 || number === 22
-              ? 'nd'
-              : number === 3 || number === 23
-              ? 'rd'
-              : 'th'
-          }`
-        : numberString;
-    },
+    minorTickLabelFormat: minorDayFormat,
     minimumPixelsPerSecond: NaN,
     approxWidthInMs: NaN,
   };
@@ -268,7 +271,7 @@ export const rasters = ({ minimumTickPixelDistance, locale }: RasterConfig, time
         }
       }
     },
-    minorTickLabelFormat: (d) => `${minorDayFormat(d)}th`,
+    minorTickLabelFormat: minorDayFormat,
     detailedLabelFormat: detailedDayFormat,
     minimumPixelsPerSecond: NaN,
     approxWidthInMs: NaN,

storybook/parameters.ts

@@ -84,7 +84,7 @@ export const storybookParameters: Parameters = {
         // See integration/jest_puppeteer.config.js#L19-L22
         name: 'VRT Viewport',
         styles: {
-          width: '800px',
+          width: '785px',
           height: '600px',
         },
       },