wrap tests in 187 protection too

spec/hunk_spec.rb

@@ -4,54 +4,56 @@
 
 describe "Diff::LCS::Hunk" do
 
-  let(:old_data) { ["Tu avec carté {count} itém has".encode('UTF-16LE')] }
-  let(:new_data) { ["Tu avec carte {count} item has".encode('UTF-16LE')] }
-  let(:peices)   { Diff::LCS.diff old_data, new_data }
-  let(:hunk)     { Diff::LCS::Hunk.new(old_data, new_data, peices[0], 3, 0) }
+  if String.method_defined?(:encoding)
 
-  it 'should be able to produce a unified diff from the two peices' do
-    expected =
+    let(:old_data) { ["Tu avec carté {count} itém has".encode('UTF-16LE')] }
+    let(:new_data) { ["Tu avec carte {count} item has".encode('UTF-16LE')] }
+    let(:peices)   { Diff::LCS.diff old_data, new_data }
+    let(:hunk)     { Diff::LCS::Hunk.new(old_data, new_data, peices[0], 3, 0) }
+
+    it 'should be able to produce a unified diff from the two peices' do
+      expected =
 (<<-EOD.encode('UTF-16LE').chomp)
 @@ -1,2 +1,2 @@
 Tu avec carté {count} itém has
 +Tu avec carte {count} item has
 EOD
-    expect(hunk.diff(:unified).to_s == expected).to eql true
-  end
+      expect(hunk.diff(:unified).to_s == expected).to eql true
+    end
 
-  it 'should be able to produce a context diff from the two peices' do
-    expected =
+    it 'should be able to produce a context diff from the two peices' do
+      expected =
 (<<-EOD.encode('UTF-16LE').chomp)
 ***************
 *** 1,2 ****
 Tu avec carté {count} itém has
 --- 1,2 ----
 Tu avec carte {count} item has
 EOD
-    expect(hunk.diff(:context).to_s == expected).to eql true
-  end
+      expect(hunk.diff(:context).to_s == expected).to eql true
+    end
 
-  it 'should be able to produce an old diff from the two peices' do
-    expected =
+    it 'should be able to produce an old diff from the two peices' do
+      expected =
 (<<-EOD.encode('UTF-16LE').chomp)
 1,2c1,2
 < Tu avec carté {count} itém has
 ---
 > Tu avec carte {count} item has
 
 EOD
-    expect(hunk.diff(:old).to_s == expected).to eql true
-  end
+      expect(hunk.diff(:old).to_s == expected).to eql true
+    end
 
-  it 'should be able to produce a reverse ed diff from the two peices' do
-    expected =
+    it 'should be able to produce a reverse ed diff from the two peices' do
+      expected =
 (<<-EOD.encode('UTF-16LE').chomp)
 c1,2
 Tu avec carte {count} item has
 .
 
 EOD
-    expect(hunk.diff(:reverse_ed).to_s == expected).to eql true
+      expect(hunk.diff(:reverse_ed).to_s == expected).to eql true
+    end
   end
-
 end