Introduce integration tests for 'font-weight' font-selection

DEVSIX-5145

Author: Kate Ivanova

layout/src/test/java/com/itextpdf/layout/FontSelectorTest.java

@@ -48,6 +48,7 @@ This file is part of the iText (R) project.
 import com.itextpdf.io.font.constants.StandardFonts;
 import com.itextpdf.kernel.colors.ColorConstants;
 import com.itextpdf.kernel.font.PdfFont;
+import com.itextpdf.kernel.font.PdfFontFactory;
 import com.itextpdf.kernel.pdf.PdfDocument;
 import com.itextpdf.kernel.pdf.PdfWriter;
 import com.itextpdf.kernel.utils.CompareTool;
@@ -594,6 +595,135 @@ public void openSansFontSetExtraBoldTest01() {
         checkSelector(set.getFonts(), "Open Sans ExtraBold", "Times-Bold", "Times-Bold", "Times-BoldItalic", "Times-BoldItalic");
     }
 
+    @Test
+    //TODO: DEVSIX-4147 (update cmp-file after the issue will be resolved)
+    public void openSansFontWeightBoldRenderingTest() throws Exception {
+        String outFileName = destinationFolder + "openSansFontWeightBoldRendering.pdf";
+        String cmpFileName = sourceFolder + "cmp_openSansFontWeightBoldRendering.pdf";
+
+        PdfDocument pdfDoc = new PdfDocument(new PdfWriter(outFileName));
+        Document doc = new Document(pdfDoc);
+
+        FontProvider sel = new FontProvider();
+        sel.getFontSet().addFont(fontsFolder + "Open_Sans/" + "OpenSans-Bold.ttf");
+        sel.getFontSet().addFont(fontsFolder + "Open_Sans/" + "OpenSans-ExtraBold.ttf");
+        sel.getFontSet().addFont(fontsFolder + "Open_Sans/" + "OpenSans-SemiBold.ttf");
+        doc.setFontProvider(sel);
+
+        Div div = new Div().setFontFamily("OpenSans");
+
+        Paragraph paragraph1 = new Paragraph("Hello, OpenSansExtraBold! ");
+        paragraph1.setProperty(Property.FONT_WEIGHT, "800");
+
+        Paragraph paragraph2 = new Paragraph(new Text("Hello, OpenSansBold! "));
+        paragraph2.setProperty(Property.FONT_WEIGHT, "700");
+
+        Paragraph paragraph3 = new Paragraph(new Text("Hello, OpenSansSemiBold!"));
+        paragraph3.setProperty(Property.FONT_WEIGHT, "600");
+
+        div
+                .add(paragraph1)
+                .add(paragraph2)
+                .add(paragraph3);
+        doc.add(div);
+
+        doc.close();
+
+        Assert.assertNull(new CompareTool().compareByContent(outFileName, cmpFileName, destinationFolder));
+    }
+
+    @Test
+    //TODO: DEVSIX-4147 (update cmp-file after the issue will be resolved)
+    public void openSansFontWeightNotBoldRenderingTest() throws Exception {
+        String outFileName = destinationFolder + "openSansFontWeightNotBoldRendering.pdf";
+        String cmpFileName = sourceFolder + "cmp_openSansFontWeightNotBoldRendering.pdf";
+
+        PdfDocument pdfDoc = new PdfDocument(new PdfWriter(outFileName));
+        Document doc = new Document(pdfDoc);
+
+        FontProvider sel = new FontProvider();
+        sel.getFontSet().addFont(fontsFolder + "Open_Sans/" + "OpenSans-Regular.ttf");
+        sel.getFontSet().addFont(fontsFolder + "Open_Sans/" + "OpenSans-Light.ttf");
+        doc.setFontProvider(sel);
+
+        Div div = new Div().setFontFamily("OpenSans");
+
+        Paragraph paragraph1 = new Paragraph("Hello, OpenSansRegular! ");
+        paragraph1.setProperty(Property.FONT_WEIGHT, "400");
+
+        Paragraph paragraph2 = new Paragraph(new Text("Hello, OpenSansLight! "));
+        paragraph2.setProperty(Property.FONT_WEIGHT, "300");
+
+        div
+                .add(paragraph1)
+                .add(paragraph2);
+        doc.add(div);
+
+        doc.close();
+
+        Assert.assertNull(new CompareTool().compareByContent(outFileName, cmpFileName, destinationFolder));
+    }
+
+    @Test
+    public void openSansOutOfBoldFontWeightTest() {
+        String openSansFolder = "Open_Sans/";
+
+        FontSet set = new FontSet();
+        set.addFont(fontsFolder + openSansFolder + "OpenSans-Bold.ttf");
+        set.addFont(fontsFolder + openSansFolder + "OpenSans-ExtraBold.ttf");
+
+        List<String> fontFamilies = new ArrayList<>();
+        fontFamilies.add("OpenSans");
+
+        FontCharacteristics fc = new FontCharacteristics();
+        fc.setFontWeight((short) 400);
+
+        Assert.assertEquals("OpenSans-Bold", new FontSelector(set.getFonts(), fontFamilies, fc).bestMatch().getDescriptor().getFontName());
+    }
+
+    @Test
+    public void openSansOutOfMixedFontWeightTest() {
+        String openSansFolder = "Open_Sans/";
+
+        FontSet set = new FontSet();
+        set.addFont(fontsFolder + openSansFolder + "OpenSans-Light.ttf");
+        set.addFont(fontsFolder + openSansFolder + "OpenSans-SemiBold.ttf");
+
+        List<String> fontFamilies = new ArrayList<>();
+        fontFamilies.add("OpenSans");
+
+        FontCharacteristics fc = new FontCharacteristics();
+        fc.setFontWeight((short) 100);
+
+        Assert.assertEquals("OpenSans-Light",
+                new FontSelector(set.getFonts(), fontFamilies, fc).bestMatch().getDescriptor().getFontName());
+
+        fc = new FontCharacteristics();
+        fc.setFontWeight((short) 600);
+
+        Assert.assertEquals("OpenSans-SemiBold",
+                new FontSelector(set.getFonts(), fontFamilies, fc).bestMatch().getDescriptor().getFontName());
+    }
+
+    @Test
+    // TODO: DEVSIX-2120 Currently light and regular fonts have the same score. When fixed update assertion to "OpenSans-Regular"
+    public void openSansOutOfNotBoldFontWeightTest() {
+        String openSansFolder = "Open_Sans/";
+
+        FontSet set = new FontSet();
+        set.addFont(fontsFolder + openSansFolder + "OpenSans-Light.ttf");
+        set.addFont(fontsFolder + openSansFolder + "OpenSans-Regular.ttf");
+
+        List<String> fontFamilies = new ArrayList<>();
+        fontFamilies.add("OpenSans");
+
+        FontCharacteristics fc = new FontCharacteristics();
+        fc.setFontWeight((short) 700);
+
+        Assert.assertEquals("OpenSans-Light",
+                new FontSelector(set.getFonts(), fontFamilies, fc).bestMatch().getDescriptor().getFontName());
+    }
+
     private void checkSelector(Collection<FontInfo> fontInfoCollection, String fontFamily,
                                String expectedNormal, String expectedBold, String expectedItalic, String expectedBoldItalic) {
         List<String> fontFamilies = new ArrayList<>();