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require 'testing_env'
require 'compilers'
require 'software_spec'
class CompilerSelectorTests < Homebrew::TestCase
class Double < SoftwareSpec
def <<(cc)
fails_with(cc)
self
end
end
class CompilerVersions
attr_accessor :gcc_4_0_build_version, :gcc_build_version,
:llvm_build_version, :clang_build_version
def initialize
@gcc_4_0_build_version = nil
@gcc_build_version = 5666
@llvm_build_version = 2336
@clang_build_version = 425
end
def non_apple_gcc_version(name)
case name
when "gcc-4.8" then "4.8.1"
when "gcc-4.7" then "4.7.1"
end
end
end
def setup
@f = Double.new
@cc = :clang
@versions = CompilerVersions.new
@selector = CompilerSelector.new(
@f, @versions, [:clang, :gcc, :llvm, :gnu]
)
end
def actual_cc
@selector.compiler
end
def test_all_compiler_failures
@f << :clang << :llvm << :gcc << { :gcc => "4.8" } << { :gcc => "4.7" }
assert_raises(CompilerSelectionError) { actual_cc }
end
def test_no_compiler_failures
assert_equal @cc, actual_cc
end
def test_fails_with_clang
@f << :clang
assert_equal :gcc, 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_fails_with_non_apple_gcc
@f << { :gcc => "4.8" }
assert_equal :clang, actual_cc
end
def test_mixed_failures_1
@f << :clang << :gcc
assert_equal :llvm, actual_cc
end
def test_mixed_failures_2
@f << :clang << :llvm
assert_equal :gcc, actual_cc
end
def test_mixed_failures_3
@f << :gcc << :llvm
assert_equal :clang, actual_cc
end
def test_mixed_failures_4
@f << :clang << { :gcc => "4.8" }
assert_equal :gcc, actual_cc
end
def test_mixed_failures_5
@f << :clang << :gcc << :llvm << { :gcc => "4.8" }
assert_equal "gcc-4.7", actual_cc
end
def test_llvm_precedence
@f << :clang << :gcc
assert_equal :llvm, actual_cc
end
def test_missing_gcc
@versions.gcc_build_version = nil
@f << :clang << :llvm << { :gcc => "4.8" } << { :gcc => "4.7" }
assert_raises(CompilerSelectionError) { actual_cc }
end
def test_missing_llvm_and_gcc
@versions.gcc_build_version = @versions.llvm_build_version = nil
@f << :clang << { :gcc => "4.8" } << { :gcc => "4.7" }
assert_raises(CompilerSelectionError) { actual_cc }
end
end
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