test_canvas.rb in hexapdf-0.6.0

- old
+ new

@@ -85,10 +85,21 @@
     it "is serialized correctly when a block is used" do
       @canvas.save_graphics_state { }
       assert_operators(@canvas.contents, [[:save_graphics_state], [:restore_graphics_state]])
     end
 
+    it "saves needed font state information not stored in the graphics state" do
+      @canvas.save_graphics_state do
+        @canvas.font("Times", size: 12)
+        @canvas.save_graphics_state do
+          @canvas.font("Helvetica")
+        end
+        assert_equal("Times-Roman", @canvas.font.wrapped_font.font_name)
+      end
+      assert_nil(@canvas.font)
+    end
+
     it "fails if invoked while in an unsupported graphics objects" do
       assert_raises_in_graphics_object(:path, :clipping_path) { @canvas.save_graphics_state }
     end
   end
 
@@ -997,22 +1008,22 @@
 
   describe "font" do
     it "returns the set font" do
       assert_nil(@canvas.font)
       @canvas.font("Times", size: 10)
-      assert_same(@doc.fonts.load("Times"), @canvas.font)
+      assert_same(@doc.fonts.add("Times"), @canvas.font)
       @canvas.font(@canvas.font)
-      assert_same(@doc.fonts.load("Times"), @canvas.font)
+      assert_same(@doc.fonts.add("Times"), @canvas.font)
       @canvas.font("Helvetica", size: 10)
       assert_operators(@canvas.contents, [[:set_font_and_size, [:F1, 10]],
                                           [:set_leading, [12.0]],
                                           [:set_font_and_size, [:F2, 10]]])
     end
 
     it "sets the font and optionally the font size" do
       @canvas.font("Times", size: 12, variant: :italic)
-      assert_same(@doc.fonts.load("Times", variant: :italic), @canvas.font)
+      assert_same(@doc.fonts.add("Times", variant: :italic), @canvas.font)
       assert_equal(12, @canvas.font_size)
       @canvas.font("Helvetica")
       assert_equal(12, @canvas.font_size)
     end
   end
@@ -1064,10 +1075,15 @@
                                           [:set_font_and_size, [:F1, 10]],
                                           [:set_leading, [12]],
                                           [:show_text_with_positioning, [["Hal"]]],
                                          ])
     end
+
+    it "fails if no valid font is set" do
+      error = assert_raises(HexaPDF::Error) { @canvas.show_glyphs([]) }
+      assert_match(/if a font is set/, error.message)
+    end
   end
 
   describe "show_glyphs_only" do
     it "serializes correctly" do
       @canvas.font("Times", size: 20)
@@ -1079,10 +1095,15 @@
                                           [:set_leading, [24]],
                                           [:begin_text],
                                           [:show_text_with_positioning, [["Ha", -35, "l lo"]]],
                                          ])
     end
+
+    it "fails if no valid font is set" do
+      error = assert_raises(HexaPDF::Error) { @canvas.show_glyphs([]) }
+      assert_match(/if a font is set/, error.message)
+    end
   end
 
   describe "text" do
     it "sets the text cursor position if instructed" do
       @canvas.font("Times", size: 10)
@@ -1109,9 +1130,14 @@
                                           [:show_text_with_positioning, [["H"]]], [:move_text_next_line],
                                           [:show_text_with_positioning, [["H"]]], [:move_text_next_line],
                                           [:show_text_with_positioning, [["H"]]], [:move_text_next_line],
                                           [:show_text_with_positioning, [["H"]]],
                                          ])
+    end
+
+    it "fails if no valid font is set" do
+      error = assert_raises(HexaPDF::Error) { @canvas.show_glyphs([]) }
+      assert_match(/if a font is set/, error.message)
     end
   end
 
   describe "marked_content_point" do
     it "invokes the operator implementation" do