Convert CxxStdlib test to spec.

1 files changed, 68 insertions, 0 deletions

diff --git a/Library/Homebrew/test/cxxstdlib_spec.rb b/Library/Homebrew/test/cxxstdlib_spec.rb
new file mode 100644
index 000000000..dd2e4e1c6
--- /dev/null
+++ b/Library/Homebrew/test/cxxstdlib_spec.rb
@@ -0,0 +1,68 @@
+require "formula"
+require "cxxstdlib"
+
+describe CxxStdlib do
+  let(:clang) { CxxStdlib.create(:libstdcxx, :clang) }
+  let(:gcc) { CxxStdlib.create(:libstdcxx, :gcc) }
+  let(:gcc40) { CxxStdlib.create(:libstdcxx, :gcc_4_0) }
+  let(:gcc42) { CxxStdlib.create(:libstdcxx, :gcc_4_2) }
+  let(:gcc48) { CxxStdlib.create(:libstdcxx, "gcc-4.8") }
+  let(:gcc49) { CxxStdlib.create(:libstdcxx, "gcc-4.9") }
+  let(:lcxx) { CxxStdlib.create(:libcxx, :clang) }
+  let(:purec) { CxxStdlib.create(nil, :clang) }
+
+  describe "#compatible_with?" do
+    specify "Apple libstdcxx intercompatibility" do
+      expect(clang).to be_compatible_with(gcc)
+      expect(clang).to be_compatible_with(gcc42)
+    end
+
+    specify "compatibility with itself" do
+      expect(gcc).to be_compatible_with(gcc)
+      expect(gcc48).to be_compatible_with(gcc48)
+      expect(clang).to be_compatible_with(clang)
+    end
+
+    specify "Apple/GNU libstdcxx incompatibility" do
+      expect(clang).not_to be_compatible_with(gcc48)
+      expect(gcc48).not_to be_compatible_with(clang)
+    end
+
+    specify "GNU cross-version incompatibility" do
+      expect(gcc48).not_to be_compatible_with(gcc49)
+      expect(gcc49).not_to be_compatible_with(gcc48)
+    end
+
+    specify "libstdcxx and libcxx incompatibility" do
+      expect(clang).not_to be_compatible_with(lcxx)
+      expect(lcxx).not_to be_compatible_with(clang)
+    end
+
+    specify "compatibility for non-cxx software" do
+      expect(purec).to be_compatible_with(clang)
+      expect(clang).to be_compatible_with(purec)
+      expect(purec).to be_compatible_with(purec)
+      expect(purec).to be_compatible_with(gcc48)
+      expect(gcc48).to be_compatible_with(purec)
+    end
+  end
+
+  describe "#apple_compiler?" do
+    it "returns true for Apple compilers" do
+      expect(clang).to be_an_apple_compiler
+      expect(gcc).to be_an_apple_compiler
+      expect(gcc42).to be_an_apple_compiler
+    end
+
+    it "returns false for non-Apple compilers" do
+      expect(gcc48).not_to be_an_apple_compiler
+    end
+  end
+
+  describe "#type_string" do
+    specify "formatting" do
+      expect(clang.type_string).to eq("libstdc++")
+      expect(lcxx.type_string).to eq("libc++")
+    end
+  end
+end