text: describe('Paragraph Behavior', function() {
      let container;
  
      let notoSerifFontBuffer = null;
      // This font is known to support kerning
      const notoSerifFontLoaded = fetch('/assets/NotoSerif-Regular.ttf').then(
          (response) => response.arrayBuffer()).then(
          (buffer) => {
              notoSerifFontBuffer = buffer;
          });
  
      let notoSerifBoldItalicFontBuffer = null;
      const notoSerifBoldItalicFontLoaded = fetch('/assets/NotoSerif-BoldItalic.ttf').then(
          (response) => response.arrayBuffer()).then(
          (buffer) => {
              notoSerifBoldItalicFontBuffer = buffer;
          });
  
      let emojiFontBuffer = null;
      const emojiFontLoaded = fetch('/assets/NotoColorEmoji.ttf').then(
          (response) => response.arrayBuffer()).then(
          (buffer) => {
              emojiFontBuffer = buffer;
          });
  
      beforeEach(async () => {
          await LoadCanvasKit;
          await notoSerifFontLoaded;
          await notoSerifBoldItalicFontLoaded;
          await emojiFontLoaded;
          container = document.createElement('div');
          container.innerHTML = `
              <canvas width=600 height=600 id=test></canvas>
              <canvas width=600 height=600 id=report></canvas>`;
          document.body.appendChild(container);
      });
  
      afterEach(() => {
          document.body.removeChild(container);
      });
  
      gm('paragraph_basic', (canvas) => {
          const paint = new CanvasKit.SkPaint();
  
          paint.setColor(CanvasKit.RED);
          paint.setStyle(CanvasKit.PaintStyle.Stroke);
  
          const fontMgr = CanvasKit.SkFontMgr.FromData(notoSerifFontBuffer);
          expect(fontMgr.countFamilies()).toEqual(1);
          expect(fontMgr.getFamilyName(0)).toEqual('Noto Serif');
  
          const wrapTo = 200;
  
          const paraStyle = new CanvasKit.ParagraphStyle({
              textStyle: {
                  color: CanvasKit.BLACK,
                  fontFamilies: ['Noto Serif'],
                  fontSize: 20,
              },
              textAlign: CanvasKit.TextAlign.Center,
              maxLines: 8,
              ellipsis: '.._.',
          });
  
          const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
          builder.addText('VAVAVAVAVAVAVA\nVAVA\n');
  
          const blueText = new CanvasKit.TextStyle({
              backgroundColor: CanvasKit.Color(234, 208, 232), // light pink
              color: CanvasKit.Color(48, 37, 199),
              fontFamilies: ['Noto Serif'],
              decoration: CanvasKit.LineThroughDecoration,
              decorationThickness: 1.5, // multiplier based on font size
              fontSize: 24,
          });
          builder.pushStyle(blueText)
          builder.addText(`Gosh I hope this wraps at some point, it is such a long line.`)
          builder.pop();
          builder.addText(` I'm done with the blue now. `)
          builder.addText(`Now I hope we should stop before we get 8 lines tall. `);
          const paragraph = builder.build();
  
          paragraph.layout(wrapTo);
  
          expect(paragraph.didExceedMaxLines()).toBeTruthy();
          expect(paragraph.getAlphabeticBaseline()).toBeCloseTo(21.377, 3);
          expect(paragraph.getHeight()).toEqual(240);
          expect(paragraph.getIdeographicBaseline()).toBeCloseTo(27.236, 3);
          expect(paragraph.getLongestLine()).toBeCloseTo(193.820, 3);
          expect(paragraph.getMaxIntrinsicWidth()).toBeCloseTo(1444.250, 3);
          expect(paragraph.getMaxWidth()).toEqual(200);
          expect(paragraph.getMinIntrinsicWidth()).toBeCloseTo(172.360, 3);
          expect(paragraph.getWordBoundary(8)).toEqual({
              start: 0,
              end: 14,
          });
          expect(paragraph.getWordBoundary(25)).toEqual({
              start: 25,
              end: 26,
          });
  
          canvas.drawRect(CanvasKit.LTRBRect(10, 10, wrapTo+10, 230), paint);
          canvas.drawParagraph(paragraph, 10, 10);
  
          paint.delete();
          fontMgr.delete();
          paragraph.delete();
          builder.delete();
      });
  
          // loosely based on SkParagraph_GetRectsForRangeParagraph test in c++ code.
      gm('paragraph_rects', (canvas) => {
          const fontMgr = CanvasKit.SkFontMgr.FromData(notoSerifFontBuffer);
  
          const wrapTo = 550;
          const hStyle = CanvasKit.RectHeightStyle.Max;
          const wStyle = CanvasKit.RectWidthStyle.Tight;
  
          const paraStyle = new CanvasKit.ParagraphStyle({
              textStyle: {
                  color: CanvasKit.BLACK,
                  fontFamilies: ['Noto Serif'],
                  fontSize: 50,
              },
              textAlign: CanvasKit.TextAlign.Left,
              maxLines: 10,
          });
          const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
          builder.addText('12345,  \"67890\" 12345 67890 12345 67890 12345 67890 12345 67890 12345 67890 12345');
          const paragraph = builder.build();
  
          paragraph.layout(wrapTo);
  
          const ranges = [
              {
                  start: 0,
                  end: 0,
                  expectedNum: 0,
              },
              {
                  start: 0,
                  end: 1,
                  expectedNum: 1,
                  color: CanvasKit.Color(200, 0, 200),
              },
              {
                  start: 2,
                  end: 8,
                  expectedNum: 1,
                  color: CanvasKit.Color(255, 0, 0),
              },
              {
                  start: 8,
                  end: 21,
                  expectedNum: 1,
                  color: CanvasKit.Color(0, 255, 0),
              },
              {
                  start: 30,
                  end: 100,
                  expectedNum: 4,
                  color: CanvasKit.Color(0, 0, 255),
              },
              {
                  start: 19,
                  end: 22,
                  expectedNum: 1,
                  color: CanvasKit.Color(0, 200, 200),
              }
          ];
          // Move it down a bit so we can see the rects that go above 0,0
          canvas.translate(10, 10);
          canvas.drawParagraph(paragraph, 0, 0);
  
          for (const test of ranges) {
              let rects = paragraph.getRectsForRange(test.start, test.end, hStyle, wStyle);
              expect(Array.isArray(rects)).toEqual(true);
              expect(rects.length).toEqual(test.expectedNum);
  
              for (const rect of rects) {
                  expect(rect.direction.value).toEqual(CanvasKit.TextDirection.LTR.value);
                  const p = new CanvasKit.SkPaint();
                  p.setColor(test.color);
                  p.setStyle(CanvasKit.PaintStyle.Stroke);
                  canvas.drawRect(rect, p);
                  p.delete();
              }
          }
  
          fontMgr.delete();
          paragraph.delete();
          builder.delete();
      });
  
      gm('paragraph_emoji', (canvas) => {
          const fontMgr = CanvasKit.SkFontMgr.FromData([notoSerifFontBuffer, emojiFontBuffer]);
          expect(fontMgr.countFamilies()).toEqual(2);
          expect(fontMgr.getFamilyName(0)).toEqual('Noto Serif');
          expect(fontMgr.getFamilyName(1)).toEqual('Noto Color Emoji');
  
          const wrapTo = 450;
  
          const paraStyle = new CanvasKit.ParagraphStyle({
              textStyle: {
                  color: CanvasKit.BLACK,
                  // Put text first, otherwise the "emoji space" is used and that looks bad.
                  fontFamilies: ['Noto Serif', 'Noto Color Emoji'],
                  fontSize: 30,
              },
              textAlign: CanvasKit.TextAlign.Left,
              maxLines: 10,
          });
  
          const textStyle = new CanvasKit.TextStyle({
              color: CanvasKit.BLACK,
              // The number 4 matches an emoji and looks strange w/o this additional style.
              fontFamilies: ['Noto Serif'],
              fontSize: 30,
          });
  
          const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
          builder.pushStyle(textStyle);
          builder.addText('4 flags on following line:\n');
          builder.pop();
          builder.addText(`🏳️‍🌈 🇮🇹 🇱🇷 🇺🇸\n`);
          builder.addText('Rainbow Italy Liberia USA\n\n');
          builder.addText('Emoji below should wrap:\n');
          builder.addText(`🍕🍔🍟🥝🍱🕶🎩👩‍👩‍👦👩‍👩‍👧‍👧👩‍👩‍👦👩‍👩‍👧‍👧👩‍👩‍👦👩‍👩‍👧‍👧👩‍👩‍👦👩‍👩‍👧‍👧👩‍👩‍👦👩‍👩‍👧‍👧👩‍👩‍👦👩‍👩‍👧‍👧👩‍👩‍👦👩‍👩‍👧‍👧`);
          const paragraph = builder.build();
  
          paragraph.layout(wrapTo);
  
          canvas.drawParagraph(paragraph, 10, 10);
  
          const paint = new CanvasKit.SkPaint();
          paint.setColor(CanvasKit.RED);
          paint.setStyle(CanvasKit.PaintStyle.Stroke);
          canvas.drawRect(CanvasKit.LTRBRect(10, 10, wrapTo+10, wrapTo+10), paint);
  
          fontMgr.delete();
          paint.delete();
          builder.delete();
          paragraph.delete();
      });
  
      gm('paragraph_hits', (canvas) => {
          const fontMgr = CanvasKit.SkFontMgr.FromData([notoSerifFontBuffer]);
  
          const wrapTo = 300;
  
          const paraStyle = new CanvasKit.ParagraphStyle({
              textStyle: {
                  color: CanvasKit.BLACK,
                  fontFamilies: ['Noto Serif'],
                  fontSize: 50,
              },
              textAlign: CanvasKit.TextAlign.Left,
              maxLines: 10,
          });
          const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
          builder.addText('UNCOPYRIGHTABLE');
          const paragraph = builder.build();
  
          paragraph.layout(wrapTo);
  
          canvas.translate(10, 10);
          canvas.drawParagraph(paragraph, 0, 0);
  
          const paint = new CanvasKit.SkPaint();
  
          paint.setColor(CanvasKit.Color(255, 0, 0));
          paint.setStyle(CanvasKit.PaintStyle.Fill);
          canvas.drawCircle(20, 30, 3, paint);
  
          paint.setColor(CanvasKit.Color(0, 0, 255));
          canvas.drawCircle(80, 90, 3, paint);
  
          paint.setColor(CanvasKit.Color(0, 255, 0));
          canvas.drawCircle(280, 2, 3, paint);
  
          let posU = paragraph.getGlyphPositionAtCoordinate(20, 30);
          expect(posU).toEqual({
              pos: 1,
              affinity: CanvasKit.Affinity.Upstream
          });
          let posA = paragraph.getGlyphPositionAtCoordinate(80, 90);
          expect(posA).toEqual({
              pos: 11,
              affinity: CanvasKit.Affinity.Downstream
          });
          let posG = paragraph.getGlyphPositionAtCoordinate(280, 2);
          expect(posG).toEqual({
              pos: 9,
              affinity: CanvasKit.Affinity.Upstream
          });
  
          builder.delete();
          paragraph.delete();
          paint.delete();
          fontMgr.delete();
      });
  
      gm('paragraph_styles', (canvas) => {
          const paint = new CanvasKit.SkPaint();
  
          paint.setColor(CanvasKit.RED);
          paint.setStyle(CanvasKit.PaintStyle.Stroke);
  
          const fontMgr = CanvasKit.SkFontMgr.FromData(notoSerifFontBuffer, notoSerifBoldItalicFontBuffer);
  
          const wrapTo = 250;
  
          const paraStyle = new CanvasKit.ParagraphStyle({
              textStyle: {
                  fontFamilies: ['Noto Serif'],
                  fontSize: 20,
                  fontStyle: {
                      weight: CanvasKit.FontWeight.Light,
                  }
              },
              textDirection: CanvasKit.TextDirection.RTL,
              disableHinting: true,
          });
  
          const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
          builder.addText('Default text\n');
  
          const boldItalic = new CanvasKit.TextStyle({
              color: CanvasKit.RED,
              fontFamilies: ['Noto Serif'],
              fontSize: 20,
              fontStyle: {
                  weight: CanvasKit.FontWeight.Bold,
                  width: CanvasKit.FontWidth.Expanded,
                  slant: CanvasKit.FontSlant.Italic,
              }
          });
          builder.pushStyle(boldItalic);
          builder.addText(`Bold, Expanded, Italic\n`);
          builder.pop();
          builder.addText(`back to normal`);
          const paragraph = builder.build();
  
          paragraph.layout(wrapTo);
  
          canvas.clear(CanvasKit.Color(250, 250, 250));
          canvas.drawRect(CanvasKit.LTRBRect(10, 10, wrapTo+10, wrapTo+10), paint);
          canvas.drawParagraph(paragraph, 10, 10);
  
          paint.delete();
          paragraph.delete();
          builder.delete();
          fontMgr.delete();
      });
  
      it('should not crash if we omit font family on pushed textStyle', () => {
          const surface = CanvasKit.MakeCanvasSurface('test');
          expect(surface).toBeTruthy('Could not make surface');
  
          const canvas = surface.getCanvas();
          const paint = new CanvasKit.SkPaint();
  
          paint.setColor(CanvasKit.RED);
          paint.setStyle(CanvasKit.PaintStyle.Stroke);
  
          const fontMgr = CanvasKit.SkFontMgr.FromData(notoSerifFontBuffer, notoSerifBoldItalicFontBuffer);
  
          const wrapTo = 250;
  
          const paraStyle = new CanvasKit.ParagraphStyle({
              textStyle: {
                  fontFamilies: ['Noto Serif'],
                  fontSize: 20,
              },
              textDirection: CanvasKit.TextDirection.RTL,
              disableHinting: true,
          });
  
          const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
          builder.addText('Default text\n');
  
          const boldItalic = new CanvasKit.TextStyle({
              fontStyle: {
                  weight: CanvasKit.FontWeight.Bold,
                  slant: CanvasKit.FontSlant.Italic,
              }
          });
          builder.pushStyle(boldItalic)
          builder.addText(`Bold, Italic\n`); // doesn't show up, but we don't crash
          builder.pop();
          builder.addText(`back to normal`);
          const paragraph = builder.build();
  
          paragraph.layout(wrapTo);
  
          canvas.clear(CanvasKit.Color(250, 250, 250));
          canvas.drawRect(CanvasKit.LTRBRect(10, 10, wrapTo+10, wrapTo+10), paint);
          canvas.drawParagraph(paragraph, 10, 10);
  
          surface.flush();
  
          paragraph.delete();
          builder.delete();
          paint.delete();
          fontMgr.delete();
      });
  
      it('should not crash if we omit font family on paragraph style', () => {
          const surface = CanvasKit.MakeCanvasSurface('test');
          expect(surface).toBeTruthy('Could not make surface')
  
          const canvas = surface.getCanvas();
          const paint = new CanvasKit.SkPaint();
  
          paint.setColor(CanvasKit.RED);
          paint.setStyle(CanvasKit.PaintStyle.Stroke);
  
          const fontMgr = CanvasKit.SkFontMgr.FromData(notoSerifFontBuffer, notoSerifBoldItalicFontBuffer);
  
          const wrapTo = 250;
  
          const paraStyle = new CanvasKit.ParagraphStyle({
              textStyle: {
                  fontSize: 20,
              },
              textDirection: CanvasKit.TextDirection.RTL,
              disableHinting: true,
          });
  
          const builder = CanvasKit.ParagraphBuilder.Make(paraStyle, fontMgr);
          builder.addText('Default text\n');
  
          const boldItalic = new CanvasKit.TextStyle({
              fontStyle: {
                  weight: CanvasKit.FontWeight.Bold,
                  slant: CanvasKit.FontSlant.Italic,
              }
          });
          builder.pushStyle(boldItalic)
          builder.addText(`Bold, Italic\n`);
          builder.pop();
          builder.addText(`back to normal`);
          const paragraph = builder.build();
  
          paragraph.layout(wrapTo);
  
          canvas.clear(CanvasKit.Color(250, 250, 250));
          canvas.drawRect(CanvasKit.LTRBRect(10, 10, wrapTo+10, wrapTo+10), paint);
          canvas.drawParagraph(paragraph, 10, 10);
  
          surface.flush();
  
          paragraph.delete();
          paint.delete();
          fontMgr.delete();
          builder.delete();
      });
  });
  