1 files changed, 51 insertions, 0 deletions
diff --git a/spec/ruby/library/zlib/gzipreader/each_char_spec.rb b/spec/ruby/library/zlib/gzipreader/each_char_spec.rb
new file mode 100644
index 0000000000..de6396da7e
--- /dev/null
+++ b/spec/ruby/library/zlib/gzipreader/each_char_spec.rb
@@ -0,0 +1,51 @@
+require_relative '../../../spec_helper'
+require 'stringio'
+require 'zlib'
+
+describe "Zlib::GzipReader#each_char" do
+
+  before :each do
+    @data = '12345abcde'
+    @zip = [31, 139, 8, 0, 44, 220, 209, 71, 0, 3, 51, 52, 50, 54, 49, 77,
+            76, 74, 78, 73, 5, 0, 157, 5, 0, 36, 10, 0, 0, 0].pack('C*')
+
+    @io = StringIO.new @zip
+    ScratchPad.clear
+  end
+
+  it "calls the given block for each char in the stream, passing the char as an argument" do
+    gz = Zlib::GzipReader.new @io
+
+    ScratchPad.record []
+    gz.each_char { |b| ScratchPad << b }
+
+    ScratchPad.recorded.should == ["1", "2", "3", "4", "5", "a", "b", "c", "d", "e"]
+  end
+
+  it "returns an enumerator, which yields each char in the stream, when no block is passed" do
+    gz = Zlib::GzipReader.new @io
+    enum = gz.each_char
+
+    ScratchPad.record []
+    while true
+      begin
+        ScratchPad << enum.next
+      rescue StopIteration
+        break
+      end
+    end
+
+    ScratchPad.recorded.should == ["1", "2", "3", "4", "5", "a", "b", "c", "d", "e"]
+  end
+
+  it "increments position before calling the block" do
+    gz = Zlib::GzipReader.new @io
+
+    i = 1
+    gz.each_char do |ignore|
+      gz.pos.should == i
+      i += 1
+    end
+  end
+
+end