support ruby32 syntax

lib/rspec_api_documentation/writers/append_json_writer.rb

@@ -5,7 +5,7 @@ module Writers
     class AppendJsonWriter < JsonWriter
       def write
         index_file = docs_dir.join("index.json")
-        if File.exists?(index_file) && (output = File.read(index_file)).length >= 2
+        if File.exist?(index_file) && (output = File.read(index_file)).length >= 2
           existing_index_hash = JSON.parse(output)
         end
         File.open(index_file, "w+") do |f|

spec/api_documentation_spec.rb

@@ -19,7 +19,7 @@
       subject.clear_docs
 
       expect(File.directory?(configuration.docs_dir)).to be_truthy
-      expect(File.exists?(test_file)).to be_falsey
+      expect(File.exist?(test_file)).to be_falsey
     end
   end
 

spec/writers/html_writer_spec.rb

@@ -27,7 +27,7 @@
 
         writer.write
         index_file = File.join(configuration.docs_dir, "index.html")
-        expect(File.exists?(index_file)).to be_truthy
+        expect(File.exist?(index_file)).to be_truthy
       end
     end
   end

spec/writers/json_iodocs_writer_spec.rb

@@ -25,7 +25,7 @@
     it "should write the index" do
       writer.write
       index_file = File.join(configuration.docs_dir, "apiconfig.json")
-      expect(File.exists?(index_file)).to be_truthy
+      expect(File.exist?(index_file)).to be_truthy
     end
   end
 end

spec/writers/json_writer_spec.rb

@@ -24,7 +24,7 @@
     it "should write the index" do
       writer.write
       index_file = File.join(configuration.docs_dir, "index.json")
-      expect(File.exists?(index_file)).to be_truthy
+      expect(File.exist?(index_file)).to be_truthy
     end
   end
 end

spec/writers/markdown_writer_spec.rb

@@ -27,7 +27,7 @@
 
         writer.write
         index_file = File.join(configuration.docs_dir, "index.md")
-        expect(File.exists?(index_file)).to be_truthy
+        expect(File.exist?(index_file)).to be_truthy
       end
     end
   end

spec/writers/slate_writer_spec.rb

@@ -27,7 +27,7 @@
 
         writer.write
         index_file = File.join(configuration.docs_dir, "index.html.md")
-        expect(File.exists?(index_file)).to be_truthy
+        expect(File.exist?(index_file)).to be_truthy
       end
     end
   end

spec/writers/textile_writer_spec.rb

@@ -27,7 +27,7 @@
 
         writer.write
         index_file = File.join(configuration.docs_dir, "index.textile")
-        expect(File.exists?(index_file)).to be_truthy
+        expect(File.exist?(index_file)).to be_truthy
       end
     end
   end