1 files changed, 56 insertions, 0 deletions
diff --git a/spec/ruby/core/encoding/locale_charmap_spec.rb b/spec/ruby/core/encoding/locale_charmap_spec.rb
new file mode 100644
index 0000000000..0d77bf227b
--- /dev/null
+++ b/spec/ruby/core/encoding/locale_charmap_spec.rb
@@ -0,0 +1,56 @@
+require_relative '../../spec_helper'
+
+describe "Encoding.locale_charmap" do
+  it "returns a String" do
+    Encoding.locale_charmap.should.instance_of?(String)
+  end
+
+  describe "when setting LC_ALL=C" do
+    before :each do
+      @old_lc_all = ENV['LC_ALL']
+    end
+
+    after :each do
+      ENV['LC_ALL'] = @old_lc_all
+    end
+
+    # FIXME: Get this working on Windows
+    platform_is :linux do
+      platform_is_not :android do
+        it "returns a value based on the LC_ALL environment variable" do
+          ENV['LC_ALL'] = 'C'
+          ruby_exe("print Encoding.locale_charmap").should == 'ANSI_X3.4-1968'
+        end
+      end
+    end
+
+    platform_is :freebsd, :openbsd, :darwin do
+      it "returns a value based on the LC_ALL environment variable" do
+        ENV['LC_ALL'] = 'C'
+        ruby_exe("print Encoding.locale_charmap").should == 'US-ASCII'
+      end
+    end
+
+    platform_is :netbsd do
+      it "returns a value based on the LC_ALL environment variable" do
+        ENV['LC_ALL'] = 'C'
+        ruby_exe("print Encoding.locale_charmap").should == '646'
+      end
+    end
+
+    platform_is :android do
+      it "always returns UTF-8" do
+        ENV['LC_ALL'] = 'C'
+        ruby_exe("print Encoding.locale_charmap").should == 'UTF-8'
+      end
+    end
+
+    platform_is :bsd, :darwin, :linux do
+      it "is unaffected by assigning to ENV['LC_ALL'] in the same process" do
+        old_charmap = Encoding.locale_charmap
+        ENV['LC_ALL'] = 'C'
+        Encoding.locale_charmap.should == old_charmap
+      end
+    end
+  end
+end