brew/Library/Homebrew/test/test_compiler_selector.rb
2013-06-12 17:25:29 -05:00

91 lines
1.8 KiB
Ruby

require 'testing_env'
require 'compilers'
class CompilerSelectorTests < Test::Unit::TestCase
class Double
def initialize
@failures = []
end
def <<(cc)
@failures << cc
end
def fails_with?(cc)
return false if cc.nil?
@failures.include?(cc.name)
end
end
def setup
MacOS.stubs(:gcc_4_0_build_version).returns(nil)
MacOS.stubs(:gcc_build_version).returns(5666)
MacOS.stubs(:llvm_build_version).returns(2336)
MacOS.stubs(:clang_build_version).returns(425)
@f = Double.new
@cc = :clang
end
def actual_cc
CompilerSelector.new(@f).compiler
end
def test_all_compiler_failures
@f << :clang << :llvm << :gcc
assert_raise(CompilerSelectionError) { actual_cc }
end
def test_no_compiler_failures
assert_equal @cc, actual_cc
end
def test_fails_with_clang
@f << :clang
assert_equal :llvm, actual_cc
end
def test_fails_with_llvm
@f << :llvm
assert_equal :clang, actual_cc
end
def test_fails_with_gcc
@f << :gcc
assert_equal :clang, actual_cc
end
def test_mixed_failures_1
@f << :clang << :llvm
assert_equal :gcc, actual_cc
end
def test_mixed_failures_2
@f << :gcc << :clang
assert_equal :llvm, actual_cc
end
def test_mixed_failures_3
@f << :llvm << :gcc
assert_equal :clang, actual_cc
end
def test_older_clang_precedence
MacOS.stubs(:clang_build_version).returns(211)
@f << :gcc
assert_equal :llvm, actual_cc
end
def test_missing_gcc
MacOS.stubs(:gcc_build_version).returns(nil)
@f << :clang << :llvm
assert_raise(CompilerSelectionError) { actual_cc }
end
def test_missing_llvm_and_gcc
MacOS.stubs(:gcc_build_version).returns(nil)
MacOS.stubs(:llvm_build_version).returns(nil)
@f << :clang
assert_raise(CompilerSelectionError) { actual_cc }
end
end