Add bold TTF test font

@@ -15,13 +15,16 @@
  DART_SRC=$(shell find . -name '*.dart')
  CLNG_SRC=$(shell find printing/ios -name '*.java' -o -name '*.m' -o -name '*.h') $(shell find printing/android -name '*.java' -o -name '*.m' -o -name '*.h')
  SWFT_SRC=$(shell find . -name '*.swift')
- FONTS=pdf/open-sans.ttf pdf/roboto.ttf pdf/noto-sans.ttf pdf/genyomintw.ttf
+ FONTS=pdf/open-sans.ttf pdf/open-sans-bold.ttf pdf/roboto.ttf pdf/noto-sans.ttf pdf/genyomintw.ttf
 
 all: $(FONTS) format
 
 pdf/open-sans.ttf:
 	curl -L "https://github.com/google/fonts/raw/master/apache/opensans/OpenSans-Regular.ttf" > $@
 
+pdf/open-sans-bold.ttf:
+	curl -L "https://github.com/google/fonts/raw/master/apache/opensans/OpenSans-Bold.ttf" > $@
+
 pdf/roboto.ttf:
 	curl -L "https://github.com/google/fonts/raw/master/apache/robotomono/RobotoMono-Regular.ttf" > $@
 

@@ -68,6 +68,7 @@ void main() {
     const String s = 'Hello Lukáča ';
 
     printTextTtf(g, s, File('open-sans.ttf'), 30.0 + 30.0 * top++);
+    printTextTtf(g, s, File('open-sans-bold.ttf'), 30.0 + 30.0 * top++);
     printTextTtf(g, s, File('roboto.ttf'), 30.0 + 30.0 * top++);
     printTextTtf(g, s, File('noto-sans.ttf'), 30.0 + 30.0 * top++);
     printTextTtf(g, '你好 檯號 ', File('genyomintw.ttf'), 30.0 + 30.0 * top++);

@@ -16,6 +16,7 @@
 
 import 'dart:convert';
 import 'dart:io';
+import 'dart:typed_data';
 
 import 'package:pdf/pdf.dart';
 import 'package:pdf/widgets.dart';
@@ -25,7 +26,16 @@ void main() {
   test('Pdf Widgets', () {
     Document.debug = true;
 
-    final Document pdf = Document(title: 'Widgets Test');
+    final Uint8List defaultFont = File('open-sans.ttf').readAsBytesSync();
+    final Uint8List defaultFontBold =
+        File('open-sans-bold.ttf').readAsBytesSync();
+
+    final Document pdf = Document(
+        title: 'Widgets Test',
+        theme: Theme.withFont(
+          Font.ttf(defaultFont.buffer.asByteData()),
+          Font.ttf(defaultFontBold.buffer.asByteData()),
+        ));
 
     final TextStyle symbol = TextStyle(font: Font.zapfDingbats());