tests: reorganize compiler selection tests

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

3 files changed, 145 insertions, 73 deletions

diff --git a/Library/Homebrew/test/test_compilers.rb b/Library/Homebrew/test/test_compilers.rb
new file mode 100644
index 000000000..7ad6f2df7
--- /dev/null
+++ b/Library/Homebrew/test/test_compilers.rb
@@ -0,0 +1,143 @@
+require 'testing_env'
+
+require 'extend/ARGV' # needs to be after test/unit to avoid conflict with OptionsParser
+ARGV.extend(HomebrewArgvExtension)
+
+require 'extend/ENV'
+ENV.extend(HomebrewEnvExtension)
+
+require 'test/testball'
+
+module CompilerTestsEnvExtension
+  def unset_use_cc
+    vars = %w{HOMEBREW_USE_CLANG HOMEBREW_USE_LLVM HOMEBREW_USE_GCC}
+    vars.each { |v| ENV.delete(v) }
+  end
+end
+ENV.extend(CompilerTestsEnvExtension)
+
+class CompilerTests < Test::Unit::TestCase
+  def test_llvm_failure
+    ENV.unset_use_cc
+    f = TestLLVMFailure.new
+    cs = CompilerSelector.new(f)
+
+    assert !(f.fails_with? :clang)
+    assert f.fails_with? :llvm
+    assert !(f.fails_with? :gcc)
+
+    cs.select_compiler
+
+    assert_equal case MacOS.clang_build_version
+      when 0..210 then :gcc
+      else :clang
+      end, ENV.compiler
+
+    ENV.send MacOS.default_compiler
+  end
+
+  def test_all_compiler_failures
+    ENV.unset_use_cc
+    f = TestAllCompilerFailures.new
+    cs = CompilerSelector.new(f)
+
+    assert f.fails_with? :clang
+    assert f.fails_with? :llvm
+    assert f.fails_with? :gcc
+
+    cs.select_compiler
+
+    assert_equal MacOS.default_compiler, ENV.compiler
+
+    ENV.send MacOS.default_compiler
+  end
+
+  def test_no_compiler_failures
+    ENV.unset_use_cc
+    f = TestNoCompilerFailures.new
+    cs = CompilerSelector.new(f)
+
+    assert !(f.fails_with? :clang)
+    assert !(f.fails_with? :llvm)
+    assert case MacOS.gcc_42_build_version
+      when 0 then f.fails_with? :gcc
+      else !(f.fails_with? :gcc)
+      end
+
+    cs.select_compiler
+
+    assert_equal MacOS.default_compiler, ENV.compiler
+
+    ENV.send MacOS.default_compiler
+  end
+
+  def test_mixed_compiler_failures
+    ENV.unset_use_cc
+    f = TestMixedCompilerFailures.new
+    cs = CompilerSelector.new(f)
+
+    assert f.fails_with? :clang
+    assert !(f.fails_with? :llvm)
+    assert f.fails_with? :gcc
+
+    cs.select_compiler
+
+    assert_equal :llvm, ENV.compiler
+
+    ENV.send MacOS.default_compiler
+  end
+
+  def test_more_mixed_compiler_failures
+    ENV.unset_use_cc
+    f = TestMoreMixedCompilerFailures.new
+    cs = CompilerSelector.new(f)
+
+    assert !(f.fails_with? :clang)
+    assert f.fails_with? :llvm
+    assert f.fails_with? :gcc
+
+    cs.select_compiler
+
+    assert_equal :clang, ENV.compiler
+
+    ENV.send MacOS.default_compiler
+  end
+
+  def test_even_more_mixed_compiler_failures
+    ENV.unset_use_cc
+    f = TestEvenMoreMixedCompilerFailures.new
+    cs = CompilerSelector.new(f)
+
+    assert f.fails_with? :clang
+    assert f.fails_with? :llvm
+    assert case MacOS.gcc_42_build_version
+      when 0 then f.fails_with? :gcc
+      else !(f.fails_with? :gcc)
+      end
+
+    cs.select_compiler
+
+    assert_equal case MacOS.clang_build_version
+      when 0..210 then :gcc
+      else :clang
+      end, ENV.compiler
+
+    ENV.send MacOS.default_compiler
+  end
+
+  def test_block_with_no_build_compiler_failures
+    ENV.unset_use_cc
+    f = TestBlockWithoutBuildCompilerFailure.new
+    cs = CompilerSelector.new(f)
+
+    assert f.fails_with? :clang
+    assert !(f.fails_with? :llvm)
+    assert !(f.fails_with? :gcc)
+
+    cs.select_compiler
+
+    assert_equal MacOS.default_compiler, ENV.compiler
+
+    ENV.send MacOS.default_compiler
+  end
+end
diff --git a/Library/Homebrew/test/test_formula.rb b/Library/Homebrew/test/test_formula.rb
index 3144afaa9..b49b06757 100644
--- a/Library/Homebrew/test/test_formula.rb
+++ b/Library/Homebrew/test/test_formula.rb
@@ -8,8 +8,6 @@ ENV.extend(HomebrewEnvExtension)
 
 require 'test/testball'
 
-require 'hardware'
-
 class AbstractDownloadStrategy
   attr_reader :url
 end
@@ -68,74 +66,4 @@ class FormulaTests < Test::Unit::TestCase
       assert_equal downloader.url, "file:///#{TEST_FOLDER}/tarballs/testball-0.1.tbz"
     end
   end
-
-  def test_compiler_selection
-    %W{HOMEBREW_USE_CLANG HOMEBEW_USE_LLVM HOMEBREW_USE_GCC}.each { |e| ENV.delete(e) }
-
-    f = TestAllCompilerFailures.new
-    assert f.fails_with? :clang
-    assert f.fails_with? :llvm
-    assert f.fails_with? :gcc
-    cs = CompilerSelector.new(f)
-    cs.select_compiler
-    assert_equal MacOS.default_compiler, ENV.compiler
-    ENV.send MacOS.default_compiler
-
-    f = TestNoCompilerFailures.new
-    assert !(f.fails_with? :clang)
-    assert !(f.fails_with? :llvm)
-    assert !(f.fails_with? :gcc)
-    cs = CompilerSelector.new(f)
-    cs.select_compiler
-    assert_equal MacOS.default_compiler, ENV.compiler
-    ENV.send MacOS.default_compiler
-
-    f = TestLLVMFailure.new
-    assert !(f.fails_with? :clang)
-    assert f.fails_with? :llvm
-    assert !(f.fails_with? :gcc)
-    cs = CompilerSelector.new(f)
-    cs.select_compiler
-    assert_equal case MacOS.clang_build_version
-    when 0..210 then :gcc
-    else :clang
-    end, ENV.compiler
-    ENV.send MacOS.default_compiler
-
-    f = TestMixedCompilerFailures.new
-    assert f.fails_with? :clang
-    assert !(f.fails_with? :llvm)
-    assert f.fails_with? :gcc
-    cs = CompilerSelector.new(f)
-    cs.select_compiler
-    assert_equal :llvm, ENV.compiler
-    ENV.send MacOS.default_compiler
-
-    f = TestMoreMixedCompilerFailures.new
-    assert !(f.fails_with? :clang)
-    assert f.fails_with? :llvm
-    assert f.fails_with? :gcc
-    cs = CompilerSelector.new(f)
-    cs.select_compiler
-    assert_equal :clang, ENV.compiler
-    ENV.send MacOS.default_compiler
-
-    f = TestEvenMoreMixedCompilerFailures.new
-    assert f.fails_with? :clang
-    assert f.fails_with? :llvm
-    assert !(f.fails_with? :gcc)
-    cs = CompilerSelector.new(f)
-    cs.select_compiler
-    assert_equal :clang, ENV.compiler
-    ENV.send MacOS.default_compiler
-
-    f = TestBlockWithoutBuildCompilerFailure.new
-    assert f.fails_with? :clang
-    assert !(f.fails_with? :llvm)
-    assert !(f.fails_with? :gcc)
-    cs = CompilerSelector.new(f)
-    cs.select_compiler
-    assert_equal MacOS.default_compiler, ENV.compiler
-    ENV.send MacOS.default_compiler
-  end
 end
diff --git a/Library/Homebrew/test/tests b/Library/Homebrew/test/tests
index adbc600ec..c7e2689f2 100755
--- a/Library/Homebrew/test/tests
+++ b/Library/Homebrew/test/tests
@@ -8,6 +8,7 @@ EXIT=0
 /usr/bin/ruby test_formula.rb $* || EXIT=1
 /usr/bin/ruby test_versions.rb $* || EXIT=1
 /usr/bin/ruby test_checksums.rb $* || EXIT=1
+/usr/bin/ruby test_compilers.rb $* || EXIT=1
 /usr/bin/ruby test_inreplace.rb $* || EXIT=1
 /usr/bin/ruby test_hardware.rb $* || EXIT=1
 /usr/bin/ruby test_formula_install.rb $* || EXIT=1
@@ -20,4 +21,4 @@ EXIT=0
 /usr/bin/ruby test_updater.rb $* || EXIT=1
 /usr/bin/ruby test_string.rb $* || EXIT=1
 
-exit $EXIT
\ No newline at end of file
+exit $EXIT