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require 'testing_env'
require 'compilers'
class CompilerSelectorTests < Homebrew::TestCase
class Double
attr_reader :name
def initialize
@failures = []
@name = "double"
end
def <<(cc)
@failures << cc
end
def fails_with?(cc)
return false if cc.nil?
@failures.include?(cc.name)
end
end
class CompilerVersions
attr_accessor :gcc_4_0_build_version, :gcc_build_version,
:llvm_build_version, :clang_build_version
def initialize(versions={})
{
:gcc_4_0_build_version => nil,
:gcc_build_version => 5666,
:llvm_build_version => 2336,
:clang_build_version => 425,
}.merge(versions).each { |k, v| instance_variable_set("@#{k}", v) }
end
def non_apple_gcc_version(name)
name == "gcc-4.8" ? "4.8.1" : nil
end
end
def setup
@f = Double.new
@cc = :clang
@versions = CompilerVersions.new
end
def actual_cc
CompilerSelector.new(@f, @versions).compiler
end
def test_all_compiler_failures
@f << :clang << :llvm << :gcc << 'gcc-4.8'
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 << :llvm
assert_equal :gcc, actual_cc
end
def test_mixed_failures_2
@f << :gcc << :clang << 'gcc-4.8'
assert_equal :llvm, actual_cc
end
def test_mixed_failures_3
@f << :llvm << :gcc
assert_equal :clang, actual_cc
end
def test_mixed_failures_4
@f << :clang << "gcc-4.8"
assert_equal :gcc, actual_cc
end
def test_older_clang_precedence
@versions = CompilerVersions.new(:clang_build_version => 211)
@f << :gcc << 'gcc-4.8'
assert_equal :llvm, actual_cc
end
def test_llvm_precedence
@f << :clang << :gcc
assert_equal :llvm, actual_cc
end
def test_missing_gcc
@versions = CompilerVersions.new( :gcc_build_version => nil)
@f << :clang << :llvm << 'gcc-4.8'
assert_raises(CompilerSelectionError) { actual_cc }
end
def test_missing_llvm_and_gcc
@versions = CompilerVersions.new(
:gcc_build_version => nil,
:llvm_build_version => nil
)
@f << :clang << 'gcc-4.8'
assert_raises(CompilerSelectionError) { actual_cc }
end
end
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