From 596142429b0754535da32a7a72ac82e7d7df7787 Mon Sep 17 00:00:00 2001
From: Tom Black <blacktm@gmail.com>
Date: Sat, 3 Jun 2017 20:37:42 -0400
Subject: Check if font file exists

---
 lib/ruby2d/text.rb | 6 ++++++
 test/text_spec.rb  | 5 +++++
 2 files changed, 11 insertions(+)

diff --git a/lib/ruby2d/text.rb b/lib/ruby2d/text.rb
index f9d46a2..c9f5bb2 100644
--- a/lib/ruby2d/text.rb
+++ b/lib/ruby2d/text.rb
@@ -18,6 +18,12 @@ module Ruby2D
 
       @font = opts[:font]
 
+      unless RUBY_ENGINE == 'opal'
+        unless File.exists? @font
+          raise Error, "Cannot find font file `#{@font}`"
+        end
+      end
+
       self.color = opts[:color] || 'white'
       ext_text_init
       add
diff --git a/test/text_spec.rb b/test/text_spec.rb
index d2b8430..a787380 100644
--- a/test/text_spec.rb
+++ b/test/text_spec.rb
@@ -1,6 +1,11 @@
 require 'ruby2d'
 
 RSpec.describe Ruby2D::Text do
+  describe '#new' do
+    it "raises exception if font file doesn't exist" do
+      expect { Text.new(font: 'bad_font.ttf') }.to raise_error(Ruby2D::Error)
+    end
+  end
 
   describe '#text=' do
     it 'maps Time to string' do
-- 
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