diff options
| -rw-r--r-- | Library/Homebrew/hardware.rb | 12 | ||||
| -rw-r--r-- | Library/Homebrew/test/hardware_spec.rb | 47 |
2 files changed, 59 insertions, 0 deletions
diff --git a/Library/Homebrew/hardware.rb b/Library/Homebrew/hardware.rb index fe07aee9d..997598def 100644 --- a/Library/Homebrew/hardware.rb +++ b/Library/Homebrew/hardware.rb @@ -80,6 +80,18 @@ module Hardware def feature?(name) features.include?(name) end + + def can_run?(arch) + if is_32_bit? + arch_32_bit == arch + elsif intel? + [:i386, :x86_64].include? arch + elsif ppc? + [:ppc, :ppc64].include? arch + else + false + end + end end end diff --git a/Library/Homebrew/test/hardware_spec.rb b/Library/Homebrew/test/hardware_spec.rb index c5f8daf4e..de8d77e68 100644 --- a/Library/Homebrew/test/hardware_spec.rb +++ b/Library/Homebrew/test/hardware_spec.rb @@ -36,5 +36,52 @@ module Hardware ).to include(described_class.family) end end + + describe "::can_run?" do + it "reports that Intel machines can run Intel executables" do + allow(Hardware::CPU).to receive(:type).and_return :intel + allow(Hardware::CPU).to receive(:bits).and_return 64 + expect(Hardware::CPU.can_run?(:i386)).to be true + expect(Hardware::CPU.can_run?(:x86_64)).to be true + end + + it "reports that PowerPC machines can run PowerPC executables" do + allow(Hardware::CPU).to receive(:type).and_return :ppc + allow(Hardware::CPU).to receive(:bits).and_return 64 + expect(Hardware::CPU.can_run?(:ppc)).to be true + expect(Hardware::CPU.can_run?(:ppc64)).to be true + end + + it "reports that 32-bit Intel machines can't run x86_64 executables" do + allow(Hardware::CPU).to receive(:type).and_return :intel + allow(Hardware::CPU).to receive(:bits).and_return 32 + expect(Hardware::CPU.can_run?(:x86_64)).to be false + end + + it "reports that 32-bit PowerPC machines can't run ppc64 executables" do + allow(Hardware::CPU).to receive(:type).and_return :ppc + allow(Hardware::CPU).to receive(:bits).and_return 32 + expect(Hardware::CPU.can_run?(:ppc64)).to be false + end + + it "identifies that Intel and PowerPC machines can't run each others' executables" do + allow(Hardware::CPU).to receive(:type).and_return :ppc + expect(Hardware::CPU.can_run?(:i386)).to be false + expect(Hardware::CPU.can_run?(:x86_64)).to be false + + allow(Hardware::CPU).to receive(:type).and_return :intel + expect(Hardware::CPU.can_run?(:ppc)).to be false + expect(Hardware::CPU.can_run?(:ppc64)).to be false + end + + it "returns false for unknown CPU types" do + allow(Hardware::CPU).to receive(:type).and_return :dunno + expect(Hardware::CPU.can_run?(:i386)).to be false + end + + it "returns false for unknown arches" do + expect(Hardware::CPU.can_run?(:blah)).to be false + end + end end end |