1 files changed, 148 insertions, 0 deletions
diff --git a/Library/Homebrew/test/options_spec.rb b/Library/Homebrew/test/options_spec.rb
new file mode 100644
index 000000000..a05bb139e
--- /dev/null
+++ b/Library/Homebrew/test/options_spec.rb
@@ -0,0 +1,148 @@
+require "options"
+
+describe Option do
+  subject { described_class.new("foo") }
+
+  specify "#to_s" do
+    expect(subject.to_s).to eq("--foo")
+  end
+
+  specify "equality" do
+    foo = Option.new("foo")
+    bar = Option.new("bar")
+    expect(subject).to eq(foo)
+    expect(subject).not_to eq(bar)
+    expect(subject).to eql(foo)
+    expect(subject).not_to eql(bar)
+  end
+
+  specify "#description" do
+    expect(subject.description).to be_empty
+    expect(Option.new("foo", "foo").description).to eq("foo")
+  end
+
+  specify "#inspect" do
+    expect(subject.inspect).to eq("#<Option: \"--foo\">")
+  end
+end
+
+describe DeprecatedOption do
+  subject { described_class.new("foo", "bar") }
+
+  specify "#old" do
+    expect(subject.old).to eq("foo")
+  end
+
+  specify "#old_flag" do
+    expect(subject.old_flag).to eq("--foo")
+  end
+
+  specify "#current" do
+    expect(subject.current).to eq("bar")
+  end
+
+  specify "#current_flag" do
+    expect(subject.current_flag).to eq("--bar")
+  end
+
+  specify "equality" do
+    foobar = DeprecatedOption.new("foo", "bar")
+    boofar = DeprecatedOption.new("boo", "far")
+    expect(foobar).to eq(subject)
+    expect(subject).to eq(foobar)
+    expect(boofar).not_to eq(subject)
+    expect(subject).not_to eq(boofar)
+  end
+end
+
+describe Options do
+  it "removes duplicate options" do
+    subject << Option.new("foo")
+    subject << Option.new("foo")
+    expect(subject).to include("--foo")
+    expect(subject.count).to eq(1)
+  end
+
+  it "preserves  existing member when adding a duplicate" do
+    a = Option.new("foo", "bar")
+    b = Option.new("foo", "qux")
+    subject << a << b
+    expect(subject.count).to eq(1)
+    expect(subject.first).to be(a)
+    expect(subject.first.description).to eq(a.description)
+  end
+
+  specify "#include?" do
+    subject << Option.new("foo")
+    expect(subject).to include("--foo")
+    expect(subject).to include("foo")
+    expect(subject).to include(Option.new("foo"))
+  end
+
+  describe "#+" do
+    it "returns options" do
+      expect(subject + Options.new).to be_an_instance_of(Options)
+    end
+  end
+
+  describe "#-" do
+    it "returns options" do
+      expect(subject - Options.new).to be_an_instance_of(Options)
+    end
+  end
+
+  specify "#&" do
+    foo, bar, baz = %w[foo bar baz].map { |o| Option.new(o) }
+    options = Options.new << foo << bar
+    subject << foo << baz
+    expect((subject & options).to_a).to eq([foo])
+  end
+
+  specify "#|" do
+    foo, bar, baz = %w[foo bar baz].map { |o| Option.new(o) }
+    options = Options.new << foo << bar
+    subject << foo << baz
+    expect((subject | options).sort).to eq([foo, bar, baz].sort)
+  end
+
+  specify "#*" do
+    subject << Option.new("aa") << Option.new("bb") << Option.new("cc")
+    expect((subject * "XX").split("XX").sort).to eq(%w[--aa --bb --cc])
+  end
+
+  describe "<<" do
+    it "returns itself" do
+      expect(subject << Option.new("foo")).to be subject
+    end
+  end
+
+  specify "#as_flags" do
+    subject << Option.new("foo")
+    expect(subject.as_flags).to eq(%w[--foo])
+  end
+
+  specify "#to_a" do
+    option = Option.new("foo")
+    subject << option
+    expect(subject.to_a).to eq([option])
+  end
+
+  specify "#to_ary" do
+    option = Option.new("foo")
+    subject << option
+    expect(subject.to_ary).to eq([option])
+  end
+
+  specify "::create_with_array" do
+    array = %w[--foo --bar]
+    option1 = Option.new("foo")
+    option2 = Option.new("bar")
+    expect(Options.create(array).sort).to eq([option1, option2].sort)
+  end
+
+  specify "#inspect" do
+    expect(subject.inspect).to eq("#<Options: []>")
+    subject << Option.new("foo")
+    expect(subject.inspect).to eq("#<Options: [#<Option: \"--foo\">]>")
+  end
+end