Convert Mach-O test to spec.

Library/Homebrew/test/os/mac/mach_spec.rb

+describe "Mach-O Pathname tests" do
+  specify "fat dylib" do
+    pn = dylib_path("fat")
+    expect(pn).to be_universal
+    expect(pn).not_to be_i386
+    expect(pn).not_to be_x86_64
+    expect(pn).not_to be_ppc7400
+    expect(pn).not_to be_ppc64
+    expect(pn).to be_dylib
+    expect(pn).not_to be_mach_o_executable
+    expect(pn).not_to be_text_executable
+    expect(pn.arch).to eq(:universal)
+  end
+
+  specify "i386 dylib" do
+    pn = dylib_path("i386")
+    expect(pn).not_to be_universal
+    expect(pn).to be_i386
+    expect(pn).not_to be_x86_64
+    expect(pn).not_to be_ppc7400
+    expect(pn).not_to be_ppc64
+    expect(pn).to be_dylib
+    expect(pn).not_to be_mach_o_executable
+    expect(pn).not_to be_text_executable
+    expect(pn).not_to be_mach_o_bundle
+  end
+
+  specify "x86_64 dylib" do
+    pn = dylib_path("x86_64")
+    expect(pn).not_to be_universal
+    expect(pn).not_to be_i386
+    expect(pn).to be_x86_64
+    expect(pn).not_to be_ppc7400
+    expect(pn).not_to be_ppc64
+    expect(pn).to be_dylib
+    expect(pn).not_to be_mach_o_executable
+    expect(pn).not_to be_text_executable
+    expect(pn).not_to be_mach_o_bundle
+  end
+
+  specify "Mach-O executable" do
+    pn = Pathname.new("#{TEST_FIXTURE_DIR}/mach/a.out")
+    expect(pn).to be_universal
+    expect(pn).not_to be_i386
+    expect(pn).not_to be_x86_64
+    expect(pn).not_to be_ppc7400
+    expect(pn).not_to be_ppc64
+    expect(pn).not_to be_dylib
+    expect(pn).to be_mach_o_executable
+    expect(pn).not_to be_text_executable
+    expect(pn).not_to be_mach_o_bundle
+  end
+
+  specify "fat bundle" do
+    pn = bundle_path("fat")
+    expect(pn).to be_universal
+    expect(pn).not_to be_i386
+    expect(pn).not_to be_x86_64
+    expect(pn).not_to be_ppc7400
+    expect(pn).not_to be_ppc64
+    expect(pn).not_to be_dylib
+    expect(pn).not_to be_mach_o_executable
+    expect(pn).not_to be_text_executable
+    expect(pn).to be_mach_o_bundle
+  end
+
+  specify "i386 bundle" do
+    pn = bundle_path("i386")
+    expect(pn).not_to be_universal
+    expect(pn).to be_i386
+    expect(pn).not_to be_x86_64
+    expect(pn).not_to be_ppc7400
+    expect(pn).not_to be_ppc64
+    expect(pn).not_to be_dylib
+    expect(pn).not_to be_mach_o_executable
+    expect(pn).not_to be_text_executable
+    expect(pn).to be_mach_o_bundle
+  end
+
+  specify "x86_64 bundle" do
+    pn = bundle_path("x86_64")
+    expect(pn).not_to be_universal
+    expect(pn).not_to be_i386
+    expect(pn).to be_x86_64
+    expect(pn).not_to be_ppc7400
+    expect(pn).not_to be_ppc64
+    expect(pn).not_to be_dylib
+    expect(pn).not_to be_mach_o_executable
+    expect(pn).not_to be_text_executable
+    expect(pn).to be_mach_o_bundle
+  end
+
+  specify "non-Mach-O" do
+    pn = Pathname.new("#{TEST_FIXTURE_DIR}/tarballs/testball-0.1.tbz")
+    expect(pn).not_to be_universal
+    expect(pn).not_to be_i386
+    expect(pn).not_to be_x86_64
+    expect(pn).not_to be_ppc7400
+    expect(pn).not_to be_ppc64
+    expect(pn).not_to be_dylib
+    expect(pn).not_to be_mach_o_executable
+    expect(pn).not_to be_text_executable
+    expect(pn).not_to be_mach_o_bundle
+    expect(pn.arch).to eq(:dunno)
+  end
+end
+
+describe ArchitectureListExtension do
+  let(:archs) { [:i386, :x86_64, :ppc7400, :ppc64].extend(described_class) }
+
+  specify "universal checks" do
+    expect(archs).to be_universal
+    expect(archs).to be_intel_universal
+    expect(archs).to be_ppc_universal
+    expect(archs).to be_cross_universal
+    expect(archs).to be_fat
+
+    non_universal = [:i386].extend(described_class)
+    expect(non_universal).not_to be_universal
+
+    intel_only = [:i386, :x86_64].extend(described_class)
+    expect(intel_only).to be_universal
+    expect(intel_only).not_to be_ppc_universal
+    expect(intel_only).not_to be_cross_universal
+
+    ppc_only = [:ppc970, :ppc64].extend(described_class)
+    expect(ppc_only).to be_universal
+    expect(ppc_only).not_to be_intel_universal
+    expect(ppc_only).not_to be_cross_universal
+
+    cross = [:ppc7400, :i386].extend(described_class)
+    expect(cross).to be_universal
+    expect(cross).not_to be_intel_universal
+    expect(cross).not_to be_ppc_universal
+  end
+
+  specify "messaging flags" do
+    archs.remove_ppc!
+    expect(archs.length).to eq(2)
+    expect(archs.as_arch_flags).to match(/-arch i386/)
+    expect(archs.as_arch_flags).to match(/-arch x86_64/)
+  end
+
+  specify "architecture flags" do
+    pn = dylib_path("fat")
+    expect(pn.archs).to be_intel_universal
+    expect(pn.archs.as_arch_flags).to eq("-arch x86_64 -arch i386")
+    expect(pn.archs.as_cmake_arch_flags).to eq("x86_64;i386")
+  end
+end
+
+describe "text executables" do
+  let(:pn) { HOMEBREW_PREFIX/"an_executable" }
+
+  after(:each) { pn.unlink }
+
+  specify "simple shebang" do
+    pn.write "#!/bin/sh"
+    expect(pn).not_to be_universal
+    expect(pn).not_to be_i386
+    expect(pn).not_to be_x86_64
+    expect(pn).not_to be_ppc7400
+    expect(pn).not_to be_ppc64
+    expect(pn).not_to be_dylib
+    expect(pn).not_to be_mach_o_executable
+    expect(pn).to be_text_executable
+    expect(pn.archs).to eq([])
+    expect(pn.arch).to eq(:dunno)
+  end
+
+  specify "shebang with options" do
+    pn.write "#! /usr/bin/perl -w"
+    expect(pn).not_to be_universal
+    expect(pn).not_to be_i386
+    expect(pn).not_to be_x86_64
+    expect(pn).not_to be_ppc7400
+    expect(pn).not_to be_ppc64
+    expect(pn).not_to be_dylib
+    expect(pn).not_to be_mach_o_executable
+    expect(pn).to be_text_executable
+    expect(pn.archs).to eq([])
+    expect(pn.arch).to eq(:dunno)
+  end
+
+  specify "malformed shebang" do
+    pn.write " #!"
+    expect(pn).not_to be_universal
+    expect(pn).not_to be_i386
+    expect(pn).not_to be_x86_64
+    expect(pn).not_to be_ppc7400
+    expect(pn).not_to be_ppc64
+    expect(pn).not_to be_dylib
+    expect(pn).not_to be_mach_o_executable
+    expect(pn).not_to be_text_executable
+    expect(pn.archs).to eq([])
+    expect(pn.arch).to eq(:dunno)
+  end
+end

Library/Homebrew/test/os/mac/mach_test.rb

-require "testing_env"
-
-class MachOPathnameTests < Homebrew::TestCase
-  def test_fat_dylib
-    pn = dylib_path("fat")
-    assert_predicate pn, :universal?
-    refute_predicate pn, :i386?
-    refute_predicate pn, :x86_64?
-    refute_predicate pn, :ppc7400?
-    refute_predicate pn, :ppc64?
-    assert_predicate pn, :dylib?
-    refute_predicate pn, :mach_o_executable?
-    refute_predicate pn, :text_executable?
-    assert_equal :universal, pn.arch
-  end
-
-  def test_i386_dylib
-    pn = dylib_path("i386")
-    refute_predicate pn, :universal?
-    assert_predicate pn, :i386?
-    refute_predicate pn, :x86_64?
-    refute_predicate pn, :ppc7400?
-    refute_predicate pn, :ppc64?
-    assert_predicate pn, :dylib?
-    refute_predicate pn, :mach_o_executable?
-    refute_predicate pn, :text_executable?
-    refute_predicate pn, :mach_o_bundle?
-  end
-
-  def test_x86_64_dylib
-    pn = dylib_path("x86_64")
-    refute_predicate pn, :universal?
-    refute_predicate pn, :i386?
-    assert_predicate pn, :x86_64?
-    refute_predicate pn, :ppc7400?
-    refute_predicate pn, :ppc64?
-    assert_predicate pn, :dylib?
-    refute_predicate pn, :mach_o_executable?
-    refute_predicate pn, :text_executable?
-    refute_predicate pn, :mach_o_bundle?
-  end
-
-  def test_mach_o_executable
-    pn = Pathname.new("#{TEST_FIXTURE_DIR}/mach/a.out")
-    assert_predicate pn, :universal?
-    refute_predicate pn, :i386?
-    refute_predicate pn, :x86_64?
-    refute_predicate pn, :ppc7400?
-    refute_predicate pn, :ppc64?
-    refute_predicate pn, :dylib?
-    assert_predicate pn, :mach_o_executable?
-    refute_predicate pn, :text_executable?
-    refute_predicate pn, :mach_o_bundle?
-  end
-
-  def test_fat_bundle
-    pn = bundle_path("fat")
-    assert_predicate pn, :universal?
-    refute_predicate pn, :i386?
-    refute_predicate pn, :x86_64?
-    refute_predicate pn, :ppc7400?
-    refute_predicate pn, :ppc64?
-    refute_predicate pn, :dylib?
-    refute_predicate pn, :mach_o_executable?
-    refute_predicate pn, :text_executable?
-    assert_predicate pn, :mach_o_bundle?
-  end
-
-  def test_i386_bundle
-    pn = bundle_path("i386")
-    refute_predicate pn, :universal?
-    assert_predicate pn, :i386?
-    refute_predicate pn, :x86_64?
-    refute_predicate pn, :ppc7400?
-    refute_predicate pn, :ppc64?
-    refute_predicate pn, :dylib?
-    refute_predicate pn, :mach_o_executable?
-    refute_predicate pn, :text_executable?
-    assert_predicate pn, :mach_o_bundle?
-  end
-
-  def test_x86_64_bundle
-    pn = bundle_path("x86_64")
-    refute_predicate pn, :universal?
-    refute_predicate pn, :i386?
-    assert_predicate pn, :x86_64?
-    refute_predicate pn, :ppc7400?
-    refute_predicate pn, :ppc64?
-    refute_predicate pn, :dylib?
-    refute_predicate pn, :mach_o_executable?
-    refute_predicate pn, :text_executable?
-    assert_predicate pn, :mach_o_bundle?
-  end
-
-  def test_non_mach_o
-    pn = Pathname.new("#{TEST_FIXTURE_DIR}/tarballs/testball-0.1.tbz")
-    refute_predicate pn, :universal?
-    refute_predicate pn, :i386?
-    refute_predicate pn, :x86_64?
-    refute_predicate pn, :ppc7400?
-    refute_predicate pn, :ppc64?
-    refute_predicate pn, :dylib?
-    refute_predicate pn, :mach_o_executable?
-    refute_predicate pn, :text_executable?
-    refute_predicate pn, :mach_o_bundle?
-    assert_equal :dunno, pn.arch
-  end
-end
-
-class ArchitectureListExtensionTests < MachOPathnameTests
-  def setup
-    super
-    @archs = [:i386, :x86_64, :ppc7400, :ppc64].extend(ArchitectureListExtension)
-  end
-
-  def test_architecture_list_extension_universal_checks
-    assert_predicate @archs, :universal?
-    assert_predicate @archs, :intel_universal?
-    assert_predicate @archs, :ppc_universal?
-    assert_predicate @archs, :cross_universal?
-    assert_predicate @archs, :fat?
-
-    non_universal = [:i386].extend ArchitectureListExtension
-    refute_predicate non_universal, :universal?
-
-    intel_only = [:i386, :x86_64].extend ArchitectureListExtension
-    assert_predicate intel_only, :universal?
-    refute_predicate intel_only, :ppc_universal?
-    refute_predicate intel_only, :cross_universal?
-
-    ppc_only = [:ppc970, :ppc64].extend ArchitectureListExtension
-    assert_predicate ppc_only, :universal?
-    refute_predicate ppc_only, :intel_universal?
-    refute_predicate ppc_only, :cross_universal?
-
-    cross = [:ppc7400, :i386].extend ArchitectureListExtension
-    assert_predicate cross, :universal?
-    refute_predicate cross, :intel_universal?
-    refute_predicate cross, :ppc_universal?
-  end
-
-  def test_architecture_list_extension_massaging_flags
-    @archs.remove_ppc!
-    assert_equal 2, @archs.length
-    assert_match(/-arch i386/, @archs.as_arch_flags)
-    assert_match(/-arch x86_64/, @archs.as_arch_flags)
-  end
-
-  def test_architecture_list_arch_flags_methods
-    pn = dylib_path("fat")
-    assert_predicate pn.archs, :intel_universal?
-    assert_equal "-arch x86_64 -arch i386", pn.archs.as_arch_flags
-    assert_equal "x86_64;i386", pn.archs.as_cmake_arch_flags
-  end
-end
-
-class TextExecutableTests < Homebrew::TestCase
-  attr_reader :pn
-
-  def setup
-    super
-    @pn = HOMEBREW_PREFIX.join("an_executable")
-  end
-
-  def teardown
-    HOMEBREW_PREFIX.join("an_executable").unlink
-    super
-  end
-
-  def test_simple_shebang
-    pn.write "#!/bin/sh"
-    refute_predicate pn, :universal?
-    refute_predicate pn, :i386?
-    refute_predicate pn, :x86_64?
-    refute_predicate pn, :ppc7400?
-    refute_predicate pn, :ppc64?
-    refute_predicate pn, :dylib?
-    refute_predicate pn, :mach_o_executable?
-    assert_predicate pn, :text_executable?
-    assert_equal [], pn.archs
-    assert_equal :dunno, pn.arch
-  end
-
-  def test_shebang_with_options
-    pn.write "#! /usr/bin/perl -w"
-    refute_predicate pn, :universal?
-    refute_predicate pn, :i386?
-    refute_predicate pn, :x86_64?
-    refute_predicate pn, :ppc7400?
-    refute_predicate pn, :ppc64?
-    refute_predicate pn, :dylib?
-    refute_predicate pn, :mach_o_executable?
-    assert_predicate pn, :text_executable?
-    assert_equal [], pn.archs
-    assert_equal :dunno, pn.arch
-  end
-
-  def test_malformed_shebang
-    pn.write " #!"
-    refute_predicate pn, :universal?
-    refute_predicate pn, :i386?
-    refute_predicate pn, :x86_64?
-    refute_predicate pn, :ppc7400?
-    refute_predicate pn, :ppc64?
-    refute_predicate pn, :dylib?
-    refute_predicate pn, :mach_o_executable?
-    refute_predicate pn, :text_executable?
-    assert_equal [], pn.archs
-    assert_equal :dunno, pn.arch
-  end
-end