1 files changed, 51 insertions, 0 deletions
diff --git a/spec/ruby/shared/file/identical.rb b/spec/ruby/shared/file/identical.rb
new file mode 100644
index 0000000000..628abd4f48
--- /dev/null
+++ b/spec/ruby/shared/file/identical.rb
@@ -0,0 +1,51 @@
+describe :file_identical, shared: true do
+  before :each do
+    @file1 = tmp('file_identical.txt')
+    @file2 = tmp('file_identical2.txt')
+    @link  = tmp('file_identical.lnk')
+    @non_exist = 'non_exist'
+
+    touch(@file1) { |f| f.puts "file1" }
+    touch(@file2) { |f| f.puts "file2" }
+
+    rm_r @link
+    begin
+      File.link(@file1, @link)
+    rescue Errno::EACCES
+      File.symlink(@file1, @link)
+    end
+  end
+
+  after :each do
+    rm_r @link, @file1, @file2
+  end
+
+  it "returns true for a file and its link" do
+    @object.send(@method, @file1, @link).should == true
+  end
+
+  it "returns false if any of the files doesn't exist" do
+    @object.send(@method, @file1, @non_exist).should == false
+    @object.send(@method, @non_exist, @file1).should == false
+    @object.send(@method, @non_exist, @non_exist).should == false
+  end
+
+  it "accepts an object that has a #to_path method" do
+    @object.send(@method, mock_to_path(@file1), mock_to_path(@link)).should == true
+  end
+
+  it "raises an ArgumentError if not passed two arguments" do
+    -> { @object.send(@method, @file1, @file2, @link) }.should.raise(ArgumentError)
+    -> { @object.send(@method, @file1) }.should.raise(ArgumentError)
+  end
+
+  it "raises a TypeError if not passed String types" do
+    -> { @object.send(@method, 1,1) }.should.raise(TypeError)
+  end
+
+  it "returns true if both named files are identical" do
+    @object.send(@method, @file1, @file1).should == true
+    @object.send(@method, @link, @link).should == true
+    @object.send(@method, @file1, @file2).should == false
+  end
+end