Add test for #size

Author: m-o-e

shard.yml

@@ -1,5 +1,5 @@
 name: rucksack
-version: 1.0.3
+version: 1.0.4
 description: Attach static files to your compiled crystal binary and access them at runtime.
 
 authors:

src/rucksack.cr

@@ -159,14 +159,14 @@ class Rucksack
 
     def checksum : Slice(UInt8)
       c = Checksummer.new
-      File.open(@path) do |fd|
+      ::File.open(@path) do |fd|
         IO.copy(fd, c)
       end
       c.digest
     end
 
     def size : UInt64
-      File.size(@path)
+      ::File.size(@path)
     end
   end
 

test/test.cr

@@ -17,7 +17,13 @@ checksums.each do |file, checksum|
   rucksack(file).read(c)
   if checksum != c.digest
     puts
-    puts "ERROR: #{file}"
+    puts "ERROR: Checksum mismatch #{file}"
+    exit 1
+  end
+
+  if rucksack(file).size != File.size(file)
+    puts
+    puts "ERROR: Size mismatch #{file}"
     exit 1
   end
 end