Add in-tree mspec and ruby/spec

* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 154 insertions, 0 deletions

diff --git a/spec/mspec/spec/runner/actions/tagpurge_spec.rb b/spec/mspec/spec/runner/actions/tagpurge_spec.rb
new file mode 100644
index 0000000000..27ad2a1470
--- /dev/null
+++ b/spec/mspec/spec/runner/actions/tagpurge_spec.rb
@@ -0,0 +1,154 @@
+require File.dirname(__FILE__) + '/../../spec_helper'
+require 'mspec/runner/actions/tagpurge'
+require 'mspec/runner/mspec'
+require 'mspec/runner/example'
+require 'mspec/runner/tag'
+
+describe TagPurgeAction, "#start" do
+  before :each do
+    @stdout = $stdout
+    $stdout = IOStub.new
+  end
+
+  after :each do
+    $stdout = @stdout
+  end
+
+  it "prints a banner" do
+    action = TagPurgeAction.new
+    action.start
+    $stdout.should == "\nRemoving tags not matching any specs\n\n"
+  end
+end
+
+describe TagPurgeAction, "#load" do
+  before :each do
+    @t1 = SpecTag.new "fails:I fail"
+    @t2 = SpecTag.new "unstable:I'm unstable"
+  end
+
+  it "creates a MatchFilter for all tags" do
+    MSpec.should_receive(:read_tags).and_return([@t1, @t2])
+    MatchFilter.should_receive(:new).with(nil, "I fail", "I'm unstable")
+    TagPurgeAction.new.load
+  end
+end
+
+describe TagPurgeAction, "#after" do
+  before :each do
+    @state = double("ExampleState")
+    @state.stub(:description).and_return("str")
+
+    @action = TagPurgeAction.new
+  end
+
+  it "does not save the description if the filter does not match" do
+    @action.should_receive(:===).with("str").and_return(false)
+    @action.after @state
+    @action.matching.should == []
+  end
+
+  it "saves the description if the filter matches" do
+    @action.should_receive(:===).with("str").and_return(true)
+    @action.after @state
+    @action.matching.should == ["str"]
+  end
+end
+
+describe TagPurgeAction, "#unload" do
+  before :each do
+    @stdout = $stdout
+    $stdout = IOStub.new
+
+    @t1 = SpecTag.new "fails:I fail"
+    @t2 = SpecTag.new "unstable:I'm unstable"
+    @t3 = SpecTag.new "fails:I'm unstable"
+
+    MSpec.stub(:read_tags).and_return([@t1, @t2, @t3])
+    MSpec.stub(:write_tags)
+
+    @state = double("ExampleState")
+    @state.stub(:description).and_return("I'm unstable")
+
+    @action = TagPurgeAction.new
+    @action.load
+    @action.after @state
+  end
+
+  after :each do
+    $stdout = @stdout
+  end
+
+  it "does not rewrite any tags if there were no tags for the specs" do
+    MSpec.should_receive(:read_tags).and_return([])
+    MSpec.should_receive(:delete_tags)
+    MSpec.should_not_receive(:write_tags)
+
+    @action.load
+    @action.after @state
+    @action.unload
+
+    $stdout.should == ""
+  end
+
+  it "rewrites tags that were matched" do
+    MSpec.should_receive(:write_tags).with([@t2, @t3])
+    @action.unload
+  end
+
+  it "prints tags that were not matched" do
+    @action.unload
+    $stdout.should == "I fail\n"
+  end
+end
+
+describe TagPurgeAction, "#unload" do
+  before :each do
+    @stdout = $stdout
+    $stdout = IOStub.new
+
+    MSpec.stub(:read_tags).and_return([])
+
+    @state = double("ExampleState")
+    @state.stub(:description).and_return("I'm unstable")
+
+    @action = TagPurgeAction.new
+    @action.load
+    @action.after @state
+  end
+
+  after :each do
+    $stdout = @stdout
+  end
+
+  it "deletes the tag file if no tags were found" do
+    MSpec.should_not_receive(:write_tags)
+    MSpec.should_receive(:delete_tags)
+    @action.unload
+    $stdout.should == ""
+  end
+end
+
+describe TagPurgeAction, "#register" do
+  before :each do
+    MSpec.stub(:register)
+    @action = TagPurgeAction.new
+  end
+
+  it "registers itself with MSpec for the :unload event" do
+    MSpec.should_receive(:register).with(:unload, @action)
+    @action.register
+  end
+end
+
+describe TagPurgeAction, "#unregister" do
+  before :each do
+    MSpec.stub(:unregister)
+    @action = TagPurgeAction.new
+  end
+
+  it "unregisters itself with MSpec for the :unload event" do
+    MSpec.should_receive(:unregister).with(:unload, @action)
+    @action.unregister
+  end
+end