# The MIT License
# Copyright © 2009 Magnus Bergmark
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

require File.dirname(__FILE__) + '/../../lib/git_remote_monitor'

describe GitRemoteMonitor::GitWrapper do
  
  before(:all) do
    # Shortcut :-D
    @wrapper = GitRemoteMonitor::GitWrapper
  end

  describe "fetch" do
    it "should know if a fetch didn't occur" do
      @wrapper.should_receive(:call_fetch).and_return "\n"
      @wrapper.fetch!.should == false
    end
    
    it "should know if a fetch occured" do
      @wrapper.should_receive(:call_fetch).and_return(
        "remote: Generating pack...\n" +
        "remote: Done counting 119 objects.\n" +
        "remote: Result has 90 objects.\n" +
        "remote: Deltifying 90 objects.\n" +
        "remote:  100% (90/90) done\n" +
        "remote: Total 90, written 90 (delta 55), reused 0 (delta 0)\n" +
        "Unpacking objects: 100% (90/90), done.\n" +
        "From git@foobar:baz\n" +
        "   e871819..110f4bc  master       -> origin/master\n"
      )
      
      @wrapper.fetch!.should == true
    end
    
  end
  
  describe "branch discovery" do
    before(:each) do
      @wrapper.stub!(:call_get_remote).and_return ""

      @wrapper.stub!(:call_get_local_branch).and_return " * master"
      @wrapper.stub!(:call_get_remote).with("master").and_return "upstream\n"
    end
    
    it "should find the current local branch" do
      @wrapper.local_branch.should == "master"
    end
    
    it "should find the current local branch, even if there are many branches" do
      @wrapper.stub!(:call_get_local_branch).and_return("  master\n* test\n  other")
      @wrapper.local_branch.should == "test"
    end
    
    it "should find the remote branch" do
      @wrapper.remote_branch.should == "upstream/master"
    end
    
    it "should return nil when no remote branch exists" do
      @wrapper.stub!(:call_get_local_branch).and_return "local"
      @wrapper.remote_branch.should be_nil
    end
  end


  describe "getting tracking information" do
    
    before(:each) do
      @wrapper.stub!(:call_get_tracking_info).and_return "         1 "
    end
    
    it "should be able to get the correct number of commits when nothing has changed" do
      @wrapper.get_tracking_info("me", "you").should == [0, 0]
    end
    
    it "should be able to get the correct number of commits when diverged" do
      @wrapper.should_receive(:call_get_tracking_info).and_return("           1 <\n          7 >")
      @wrapper.get_tracking_info("me", "you").should == [1, 7]
    end
    
    it "should be able to get the correct number of commits when remote is ahead" do
      @wrapper.should_receive(:call_get_tracking_info).and_return("          7 >")
      @wrapper.get_tracking_info("me", "you").should == [0, 7]
    end
    
    it "should be able to get the correct number of commits when remote is behind" do
      @wrapper.should_receive(:call_get_tracking_info).and_return("           1 <")
      @wrapper.get_tracking_info("me", "you").should == [1, 0]
    end
  end  
  
end