Convert Tab test to spec.

2 files changed, 341 insertions, 318 deletions

diff --git a/Library/Homebrew/test/tab_spec.rb b/Library/Homebrew/test/tab_spec.rb
new file mode 100644
index 000000000..32a06a681
--- /dev/null
+++ b/Library/Homebrew/test/tab_spec.rb
@@ -0,0 +1,341 @@
+require "tab"
+require "formula"
+
+RSpec::Matchers.alias_matcher :have_option_with, :be_with
+
+describe Tab do
+  matcher :be_poured_from_bottle do
+    match do |actual|
+      actual.poured_from_bottle == true
+    end
+  end
+
+  matcher :be_built_as_bottle do
+    match do |actual|
+      actual.built_as_bottle == true
+    end
+  end
+
+  subject {
+    described_class.new(
+      "homebrew_version" => HOMEBREW_VERSION,
+      "used_options"         => used_options.as_flags,
+      "unused_options"       => unused_options.as_flags,
+      "built_as_bottle"      => false,
+      "poured_from_bottle"   => true,
+      "changed_files"        => [],
+      "time"                 => time,
+      "source_modified_time" => 0,
+      "HEAD"                 => TEST_SHA1,
+      "compiler"             => "clang",
+      "stdlib"               => "libcxx",
+      "runtime_dependencies" => [],
+      "source"               => {
+        "tap" => CoreTap.instance.to_s,
+        "path" => CoreTap.instance.path.to_s,
+        "spec" => "stable",
+        "versions" => {
+          "stable" => "0.10",
+          "devel" => "0.14",
+          "head" => "HEAD-1111111",
+        },
+      },
+    )
+  }
+  let(:time) { Time.now.to_i }
+  let(:unused_options) { Options.create(%w[--with-baz --without-qux]) }
+  let(:used_options) { Options.create(%w[--with-foo --without-bar]) }
+
+  let(:f) { formula { url "foo-1.0" } }
+  let(:f_tab_path) { f.prefix/"INSTALL_RECEIPT.json" }
+  let(:f_tab_content) { (TEST_FIXTURE_DIR/"receipt.json").read }
+
+  specify "defaults" do
+    tab = described_class.empty
+
+    expect(tab.homebrew_version).to eq(HOMEBREW_VERSION)
+    expect(tab.unused_options).to be_empty
+    expect(tab.used_options).to be_empty
+    expect(tab.changed_files).to be nil
+    expect(tab).not_to be_built_as_bottle
+    expect(tab).not_to be_poured_from_bottle
+    expect(tab).to be_stable
+    expect(tab).not_to be_devel
+    expect(tab).not_to be_head
+    expect(tab.tap).to be nil
+    expect(tab.time).to be nil
+    expect(tab.HEAD).to be nil
+    expect(tab.runtime_dependencies).to be_empty
+    expect(tab.stable_version).to be nil
+    expect(tab.devel_version).to be nil
+    expect(tab.head_version).to be nil
+    expect(tab.cxxstdlib.compiler).to eq(DevelopmentTools.default_compiler)
+    expect(tab.cxxstdlib.type).to be nil
+    expect(tab.source["path"]).to be nil
+  end
+
+  specify "#include?" do
+    expect(subject).to include("with-foo")
+    expect(subject).to include("without-bar")
+  end
+
+  specify "#with?" do
+    expect(subject).to have_option_with("foo")
+    expect(subject).to have_option_with("qux")
+    expect(subject).not_to have_option_with("bar")
+    expect(subject).not_to have_option_with("baz")
+  end
+
+  specify "#universal?" do
+    tab = described_class.new(used_options: %w[--universal])
+    expect(tab).to be_universal
+  end
+
+  specify "#parsed_homebrew_version" do
+    tab = described_class.new
+    expect(tab.parsed_homebrew_version).to be Version::NULL
+
+    tab = described_class.new(homebrew_version: "1.2.3")
+    expect(tab.parsed_homebrew_version).to eq("1.2.3")
+    expect(tab.parsed_homebrew_version).to be < "1.2.3-1-g12789abdf"
+    expect(tab.parsed_homebrew_version).to be_kind_of(Version)
+
+    tab.homebrew_version = "1.2.4-567-g12789abdf"
+    expect(tab.parsed_homebrew_version).to be > "1.2.4"
+    expect(tab.parsed_homebrew_version).to be > "1.2.4-566-g21789abdf"
+    expect(tab.parsed_homebrew_version).to be < "1.2.4-568-g01789abdf"
+
+    tab = described_class.new(homebrew_version: "2.0.0-134-gabcdefabc-dirty")
+    expect(tab.parsed_homebrew_version).to be > "2.0.0"
+    expect(tab.parsed_homebrew_version).to be > "2.0.0-133-g21789abdf"
+    expect(tab.parsed_homebrew_version).to be < "2.0.0-135-g01789abdf"
+  end
+
+  specify "#runtime_dependencies" do
+    tab = described_class.new
+    expect(tab.runtime_dependencies).to be nil
+
+    tab.homebrew_version = "1.1.6"
+    expect(tab.runtime_dependencies).to be nil
+
+    tab.runtime_dependencies = []
+    expect(tab.runtime_dependencies).not_to be nil
+
+    tab.homebrew_version = "1.1.5"
+    expect(tab.runtime_dependencies).to be nil
+
+    tab.homebrew_version = "1.1.7"
+    expect(tab.runtime_dependencies).not_to be nil
+
+    tab.homebrew_version = "1.1.10"
+    expect(tab.runtime_dependencies).not_to be nil
+
+    tab.runtime_dependencies = [{ "full_name" => "foo", "version" => "1.0" }]
+    expect(tab.runtime_dependencies).not_to be nil
+  end
+
+  specify "#cxxstdlib" do
+    expect(subject.cxxstdlib.compiler).to eq(:clang)
+    expect(subject.cxxstdlib.type).to eq(:libcxx)
+  end
+
+  specify "other attributes" do
+    expect(subject.HEAD).to eq(TEST_SHA1)
+    expect(subject.tap.name).to eq("homebrew/core")
+    expect(subject.time).to eq(time)
+    expect(subject).not_to be_built_as_bottle
+    expect(subject).to be_poured_from_bottle
+  end
+
+  describe "::from_file" do
+    it "parses a Tab from a file" do
+      path = Pathname.new("#{TEST_FIXTURE_DIR}/receipt.json")
+      tab = described_class.from_file(path)
+      source_path = "/usr/local/Library/Taps/homebrew/homebrew-core/Formula/foo.rb"
+      runtime_dependencies = [{ "full_name" => "foo", "version" => "1.0" }]
+      changed_files = %w[INSTALL_RECEIPT.json bin/foo]
+
+      expect(tab.used_options.sort).to eq(used_options.sort)
+      expect(tab.unused_options.sort).to eq(unused_options.sort)
+      expect(tab.changed_files).to eq(changed_files)
+      expect(tab).not_to be_built_as_bottle
+      expect(tab).to be_poured_from_bottle
+      expect(tab).to be_stable
+      expect(tab).not_to be_devel
+      expect(tab).not_to be_head
+      expect(tab.tap.name).to eq("homebrew/core")
+      expect(tab.spec).to eq(:stable)
+      expect(tab.time).to eq(Time.at(1_403_827_774).to_i)
+      expect(tab.HEAD).to eq(TEST_SHA1)
+      expect(tab.cxxstdlib.compiler).to eq(:clang)
+      expect(tab.cxxstdlib.type).to eq(:libcxx)
+      expect(tab.runtime_dependencies).to eq(runtime_dependencies)
+      expect(tab.stable_version.to_s).to eq("2.14")
+      expect(tab.devel_version.to_s).to eq("2.15")
+      expect(tab.head_version.to_s).to eq("HEAD-0000000")
+      expect(tab.source["path"]).to eq(source_path)
+    end
+
+    it "can parse an old Tab file" do
+      path = Pathname.new("#{TEST_FIXTURE_DIR}/receipt_old.json")
+      tab = described_class.from_file(path)
+
+      expect(tab.used_options.sort).to eq(used_options.sort)
+      expect(tab.unused_options.sort).to eq(unused_options.sort)
+      expect(tab).not_to be_built_as_bottle
+      expect(tab).to be_poured_from_bottle
+      expect(tab).to be_stable
+      expect(tab).not_to be_devel
+      expect(tab).not_to be_head
+      expect(tab.tap.name).to eq("homebrew/core")
+      expect(tab.spec).to eq(:stable)
+      expect(tab.time).to eq(Time.at(1_403_827_774).to_i)
+      expect(tab.HEAD).to eq(TEST_SHA1)
+      expect(tab.cxxstdlib.compiler).to eq(:clang)
+      expect(tab.cxxstdlib.type).to eq(:libcxx)
+      expect(tab.runtime_dependencies).to be nil
+    end
+  end
+
+  describe "::create" do
+    it "creates a Tab" do
+      f = formula do
+        url "foo-1.0"
+        depends_on "bar"
+        depends_on "user/repo/from_tap"
+        depends_on "baz" => :build
+      end
+
+      tap = Tap.new("user", "repo")
+      from_tap = formula("from_tap", path: tap.path/"Formula/from_tap.rb") do
+        url "from_tap-1.0"
+      end
+      stub_formula_loader from_tap
+
+      stub_formula_loader formula("bar") { url "bar-2.0" }
+      stub_formula_loader formula("baz") { url "baz-3.0" }
+
+      compiler = DevelopmentTools.default_compiler
+      stdlib = :libcxx
+      tab = described_class.create(f, compiler, stdlib)
+
+      runtime_dependencies = [
+        { "full_name" => "bar", "version" => "2.0" },
+        { "full_name" => "user/repo/from_tap", "version" => "1.0" },
+      ]
+
+      expect(tab.runtime_dependencies).to eq(runtime_dependencies)
+      expect(tab.source["path"]).to eq(f.path.to_s)
+    end
+
+    it "can create a Tab from an alias" do
+      alias_path = CoreTap.instance.alias_dir/"bar"
+      f = formula(alias_path: alias_path) { url "foo-1.0" }
+      compiler = DevelopmentTools.default_compiler
+      stdlib = :libcxx
+      tab = described_class.create(f, compiler, stdlib)
+
+      expect(tab.source["path"]).to eq(f.alias_path.to_s)
+    end
+  end
+
+  describe "::for_keg" do
+    subject { described_class.for_keg(f.prefix) }
+
+    it "creates a Tab for a given Keg" do
+      f.prefix.mkpath
+      f_tab_path.write f_tab_content
+
+      expect(subject.tabfile).to eq(f_tab_path)
+    end
+
+    it "can create a Tab for a non-existant Keg" do
+      f.prefix.mkpath
+
+      expect(subject.tabfile).to be nil
+    end
+  end
+
+  describe "::for_formula" do
+    it "creates a Tab for a given Formula" do
+      tab = described_class.for_formula(f)
+      expect(tab.source["path"]).to eq(f.path.to_s)
+    end
+
+    it "can create a Tab for for a Formula from an alias" do
+      alias_path = CoreTap.instance.alias_dir/"bar"
+      f = formula(alias_path: alias_path) { url "foo-1.0" }
+
+      tab = described_class.for_formula(f)
+      expect(tab.source["path"]).to eq(alias_path.to_s)
+    end
+
+    it "creates a Tab for a given Formula" do
+      f.prefix.mkpath
+      f_tab_path.write f_tab_content
+
+      tab = described_class.for_formula(f)
+      expect(tab.tabfile).to eq(f_tab_path)
+    end
+
+    it "can create a Tab for a non-existant Formula" do
+      f.prefix.mkpath
+
+      tab = described_class.for_formula(f)
+      expect(tab.tabfile).to be nil
+    end
+
+    it "can create a Tab for a Formula with multiple Kegs" do
+      f.prefix.mkpath
+      f_tab_path.write f_tab_content
+
+      f2 = formula { url "foo-2.0" }
+      f2.prefix.mkpath
+
+      expect(f2.rack).to eq(f.rack)
+      expect(f.installed_prefixes.length).to eq(2)
+
+      tab = described_class.for_formula(f)
+      expect(tab.tabfile).to eq(f_tab_path)
+    end
+
+    it "can create a Tab for a Formula with an outdated Kegs" do
+      f_tab_path.write f_tab_content
+
+      f2 = formula { url "foo-2.0" }
+
+      expect(f2.rack).to eq(f.rack)
+      expect(f.installed_prefixes.length).to eq(1)
+
+      tab = described_class.for_formula(f)
+      expect(tab.tabfile).to eq(f_tab_path)
+    end
+  end
+
+  specify "#to_json" do
+    tab = described_class.new(JSON.parse(subject.to_json))
+    expect(tab.used_options.sort).to eq(subject.used_options.sort)
+    expect(tab.unused_options.sort).to eq(subject.unused_options.sort)
+    expect(tab.built_as_bottle).to eq(subject.built_as_bottle)
+    expect(tab.poured_from_bottle).to eq(subject.poured_from_bottle)
+    expect(tab.changed_files).to eq(subject.changed_files)
+    expect(tab.tap).to eq(subject.tap)
+    expect(tab.spec).to eq(subject.spec)
+    expect(tab.time).to eq(subject.time)
+    expect(tab.HEAD).to eq(subject.HEAD)
+    expect(tab.compiler).to eq(subject.compiler)
+    expect(tab.stdlib).to eq(subject.stdlib)
+    expect(tab.runtime_dependencies).to eq(subject.runtime_dependencies)
+    expect(tab.stable_version).to eq(subject.stable_version)
+    expect(tab.devel_version).to eq(subject.devel_version)
+    expect(tab.head_version).to eq(subject.head_version)
+    expect(tab.source["path"]).to eq(subject.source["path"])
+  end
+
+  specify "::remap_deprecated_options" do
+    deprecated_options = [DeprecatedOption.new("with-foo", "with-foo-new")]
+    remapped_options = described_class.remap_deprecated_options(deprecated_options, subject.used_options)
+    expect(remapped_options).to include(Option.new("without-bar"))
+    expect(remapped_options).to include(Option.new("with-foo-new"))
+  end
+end
diff --git a/Library/Homebrew/test/tab_test.rb b/Library/Homebrew/test/tab_test.rb
deleted file mode 100644
index 08d45ee90..000000000
--- a/Library/Homebrew/test/tab_test.rb
+++ /dev/null
@@ -1,318 +0,0 @@
-require "testing_env"
-require "tab"
-require "formula"
-
-class TabTests < Homebrew::TestCase
-  def setup
-    super
-
-    @time = Time.now.to_i
-    @used = Options.create(%w[--with-foo --without-bar])
-    @unused = Options.create(%w[--with-baz --without-qux])
-
-    @tab = Tab.new(
-      "homebrew_version" => HOMEBREW_VERSION,
-      "used_options"         => @used.as_flags,
-      "unused_options"       => @unused.as_flags,
-      "built_as_bottle"      => false,
-      "poured_from_bottle"   => true,
-      "changed_files"        => [],
-      "time"                 => @time,
-      "source_modified_time" => 0,
-      "HEAD"                 => TEST_SHA1,
-      "compiler"             => "clang",
-      "stdlib"               => "libcxx",
-      "runtime_dependencies" => [],
-      "source"               => {
-        "tap" => CoreTap.instance.to_s,
-        "path" => CoreTap.instance.path.to_s,
-        "spec" => "stable",
-        "versions" => {
-          "stable" => "0.10",
-          "devel" => "0.14",
-          "head" => "HEAD-1111111",
-        },
-      },
-    )
-  end
-
-  def test_defaults
-    tab = Tab.empty
-
-    assert_equal HOMEBREW_VERSION, tab.homebrew_version
-    assert_empty tab.unused_options
-    assert_empty tab.used_options
-    assert_nil tab.changed_files
-    refute_predicate tab, :built_as_bottle
-    refute_predicate tab, :poured_from_bottle
-    assert_predicate tab, :stable?
-    refute_predicate tab, :devel?
-    refute_predicate tab, :head?
-    assert_nil tab.tap
-    assert_nil tab.time
-    assert_nil tab.HEAD
-    assert_empty tab.runtime_dependencies
-    assert_nil tab.stable_version
-    assert_nil tab.devel_version
-    assert_nil tab.head_version
-    assert_equal DevelopmentTools.default_compiler, tab.cxxstdlib.compiler
-    assert_nil tab.cxxstdlib.type
-    assert_nil tab.source["path"]
-  end
-
-  def test_include?
-    assert_includes @tab, "with-foo"
-    assert_includes @tab, "without-bar"
-  end
-
-  def test_with?
-    assert @tab.with?("foo")
-    assert @tab.with?("qux")
-    refute @tab.with?("bar")
-    refute @tab.with?("baz")
-  end
-
-  def test_universal?
-    tab = Tab.new(used_options: %w[--universal])
-    assert_predicate tab, :universal?
-  end
-
-  def test_parsed_homebrew_version
-    tab = Tab.new
-    assert_same Version::NULL, tab.parsed_homebrew_version
-
-    tab = Tab.new(homebrew_version: "1.2.3")
-    assert_equal "1.2.3", tab.parsed_homebrew_version
-    assert tab.parsed_homebrew_version < "1.2.3-1-g12789abdf"
-    assert_kind_of Version, tab.parsed_homebrew_version
-
-    tab.homebrew_version = "1.2.4-567-g12789abdf"
-    assert tab.parsed_homebrew_version > "1.2.4"
-    assert tab.parsed_homebrew_version > "1.2.4-566-g21789abdf"
-    assert tab.parsed_homebrew_version < "1.2.4-568-g01789abdf"
-
-    tab = Tab.new(homebrew_version: "2.0.0-134-gabcdefabc-dirty")
-    assert tab.parsed_homebrew_version > "2.0.0"
-    assert tab.parsed_homebrew_version > "2.0.0-133-g21789abdf"
-    assert tab.parsed_homebrew_version < "2.0.0-135-g01789abdf"
-  end
-
-  def test_runtime_dependencies
-    tab = Tab.new
-    assert_nil tab.runtime_dependencies
-
-    tab.homebrew_version = "1.1.6"
-    assert_nil tab.runtime_dependencies
-
-    tab.runtime_dependencies = []
-    refute_nil tab.runtime_dependencies
-
-    tab.homebrew_version = "1.1.5"
-    assert_nil tab.runtime_dependencies
-
-    tab.homebrew_version = "1.1.7"
-    refute_nil tab.runtime_dependencies
-
-    tab.homebrew_version = "1.1.10"
-    refute_nil tab.runtime_dependencies
-
-    tab.runtime_dependencies = [{ "full_name" => "foo", "version" => "1.0" }]
-    refute_nil tab.runtime_dependencies
-  end
-
-  def test_cxxstdlib
-    assert_equal :clang, @tab.cxxstdlib.compiler
-    assert_equal :libcxx, @tab.cxxstdlib.type
-  end
-
-  def test_other_attributes
-    assert_equal TEST_SHA1, @tab.HEAD
-    assert_equal "homebrew/core", @tab.tap.name
-    assert_equal @time, @tab.time
-    refute_predicate @tab, :built_as_bottle
-    assert_predicate @tab, :poured_from_bottle
-  end
-
-  def test_from_old_version_file
-    path = Pathname.new("#{TEST_FIXTURE_DIR}/receipt_old.json")
-    tab = Tab.from_file(path)
-
-    assert_equal @used.sort, tab.used_options.sort
-    assert_equal @unused.sort, tab.unused_options.sort
-    refute_predicate tab, :built_as_bottle
-    assert_predicate tab, :poured_from_bottle
-    assert_predicate tab, :stable?
-    refute_predicate tab, :devel?
-    refute_predicate tab, :head?
-    assert_equal "homebrew/core", tab.tap.name
-    assert_equal :stable, tab.spec
-    refute_nil tab.time
-    assert_equal TEST_SHA1, tab.HEAD
-    assert_equal :clang, tab.cxxstdlib.compiler
-    assert_equal :libcxx, tab.cxxstdlib.type
-    assert_nil tab.runtime_dependencies
-  end
-
-  def test_from_file
-    path = Pathname.new("#{TEST_FIXTURE_DIR}/receipt.json")
-    tab = Tab.from_file(path)
-    source_path = "/usr/local/Library/Taps/homebrew/homebrew-core/Formula/foo.rb"
-    runtime_dependencies = [{ "full_name" => "foo", "version" => "1.0" }]
-    changed_files = %w[INSTALL_RECEIPT.json bin/foo]
-
-    assert_equal @used.sort, tab.used_options.sort
-    assert_equal @unused.sort, tab.unused_options.sort
-    assert_equal changed_files, tab.changed_files
-    refute_predicate tab, :built_as_bottle
-    assert_predicate tab, :poured_from_bottle
-    assert_predicate tab, :stable?
-    refute_predicate tab, :devel?
-    refute_predicate tab, :head?
-    assert_equal "homebrew/core", tab.tap.name
-    assert_equal :stable, tab.spec
-    refute_nil tab.time
-    assert_equal TEST_SHA1, tab.HEAD
-    assert_equal :clang, tab.cxxstdlib.compiler
-    assert_equal :libcxx, tab.cxxstdlib.type
-    assert_equal runtime_dependencies, tab.runtime_dependencies
-    assert_equal "2.14", tab.stable_version.to_s
-    assert_equal "2.15", tab.devel_version.to_s
-    assert_equal "HEAD-0000000", tab.head_version.to_s
-    assert_equal source_path, tab.source["path"]
-  end
-
-  def test_create
-    f = formula do
-      url "foo-1.0"
-      depends_on "bar"
-      depends_on "user/repo/from_tap"
-      depends_on "baz" => :build
-    end
-
-    tap = Tap.new("user", "repo")
-    from_tap = formula("from_tap", tap.path/"Formula/from_tap.rb") do
-      url "from_tap-1.0"
-    end
-    stub_formula_loader from_tap
-
-    stub_formula_loader formula("bar") { url "bar-2.0" }
-    stub_formula_loader formula("baz") { url "baz-3.0" }
-
-    compiler = DevelopmentTools.default_compiler
-    stdlib = :libcxx
-    tab = Tab.create(f, compiler, stdlib)
-
-    runtime_dependencies = [
-      { "full_name" => "bar", "version" => "2.0" },
-      { "full_name" => "user/repo/from_tap", "version" => "1.0" },
-    ]
-
-    assert_equal runtime_dependencies, tab.runtime_dependencies
-    assert_equal f.path.to_s, tab.source["path"]
-  end
-
-  def test_create_from_alias
-    alias_path = CoreTap.instance.alias_dir/"bar"
-    f = formula(alias_path: alias_path) { url "foo-1.0" }
-    compiler = DevelopmentTools.default_compiler
-    stdlib = :libcxx
-    tab = Tab.create(f, compiler, stdlib)
-
-    assert_equal f.alias_path.to_s, tab.source["path"]
-  end
-
-  def test_for_formula
-    f = formula { url "foo-1.0" }
-    tab = Tab.for_formula(f)
-
-    assert_equal f.path.to_s, tab.source["path"]
-  end
-
-  def test_for_formula_from_alias
-    alias_path = CoreTap.instance.alias_dir/"bar"
-    f = formula(alias_path: alias_path) { url "foo-1.0" }
-    tab = Tab.for_formula(f)
-
-    assert_equal alias_path.to_s, tab.source["path"]
-  end
-
-  def test_to_json
-    tab = Tab.new(JSON.parse(@tab.to_json))
-    assert_equal @tab.used_options.sort, tab.used_options.sort
-    assert_equal @tab.unused_options.sort, tab.unused_options.sort
-    assert_equal @tab.built_as_bottle, tab.built_as_bottle
-    assert_equal @tab.poured_from_bottle, tab.poured_from_bottle
-    assert_equal @tab.changed_files, tab.changed_files
-    assert_equal @tab.tap, tab.tap
-    assert_equal @tab.spec, tab.spec
-    assert_equal @tab.time, tab.time
-    assert_equal @tab.HEAD, tab.HEAD
-    assert_equal @tab.compiler, tab.compiler
-    assert_equal @tab.stdlib, tab.stdlib
-    assert_equal @tab.runtime_dependencies, tab.runtime_dependencies
-    assert_equal @tab.stable_version, tab.stable_version
-    assert_equal @tab.devel_version, tab.devel_version
-    assert_equal @tab.head_version, tab.head_version
-    assert_equal @tab.source["path"], tab.source["path"]
-  end
-
-  def test_remap_deprecated_options
-    deprecated_options = [DeprecatedOption.new("with-foo", "with-foo-new")]
-    remapped_options = Tab.remap_deprecated_options(deprecated_options, @tab.used_options)
-    assert_includes remapped_options, Option.new("without-bar")
-    assert_includes remapped_options, Option.new("with-foo-new")
-  end
-end
-
-class TabLoadingTests < Homebrew::TestCase
-  def setup
-    super
-    @f = formula { url "foo-1.0" }
-    @f.prefix.mkpath
-    @path = @f.prefix.join(Tab::FILENAME)
-    @path.write TEST_FIXTURE_DIR.join("receipt.json").read
-  end
-
-  def test_for_keg
-    tab = Tab.for_keg(@f.prefix)
-    assert_equal @path, tab.tabfile
-  end
-
-  def test_for_keg_nonexistent_path
-    @path.unlink
-    tab = Tab.for_keg(@f.prefix)
-    assert_nil tab.tabfile
-  end
-
-  def test_for_formula
-    tab = Tab.for_formula(@f)
-    assert_equal @path, tab.tabfile
-  end
-
-  def test_for_formula_nonexistent_path
-    @path.unlink
-    tab = Tab.for_formula(@f)
-    assert_nil tab.tabfile
-  end
-
-  def test_for_formula_multiple_kegs
-    f2 = formula { url "foo-2.0" }
-    f2.prefix.mkpath
-
-    assert_equal @f.rack, f2.rack
-    assert_equal 2, @f.installed_prefixes.length
-
-    tab = Tab.for_formula(@f)
-    assert_equal @path, tab.tabfile
-  end
-
-  def test_for_formula_outdated_keg
-    f2 = formula { url "foo-2.0" }
-
-    assert_equal @f.rack, f2.rack
-    assert_equal 1, @f.installed_prefixes.length
-
-    tab = Tab.for_formula(f2)
-    assert_equal @path, tab.tabfile
-  end
-end