1 files changed, 31 insertions, 0 deletions
diff --git a/spec/ruby/core/encoding/invalid_byte_sequence_error/incomplete_input_spec.rb b/spec/ruby/core/encoding/invalid_byte_sequence_error/incomplete_input_spec.rb
new file mode 100644
index 0000000000..c79a6663e2
--- /dev/null
+++ b/spec/ruby/core/encoding/invalid_byte_sequence_error/incomplete_input_spec.rb
@@ -0,0 +1,31 @@
+# -*- encoding: binary -*-
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+with_feature :encoding do
+  describe "Encoding::InvalidByteSequenceError#incomplete_input?" do
+
+    it "returns nil by default" do
+      Encoding::InvalidByteSequenceError.new.incomplete_input?.should be_nil
+    end
+
+    it "returns true if #primitive_convert returned :incomplete_input for the same data" do
+      ec = Encoding::Converter.new("EUC-JP", "ISO-8859-1")
+      ec.primitive_convert("\xA1",'').should == :incomplete_input
+      begin
+        ec.convert("\xA1")
+      rescue Encoding::InvalidByteSequenceError => e
+        e.incomplete_input?.should be_true
+      end
+    end
+
+    it "returns false if #primitive_convert returned :invalid_byte_sequence for the same data" do
+      ec = Encoding::Converter.new("ascii", "utf-8")
+      ec.primitive_convert("\xfffffffff",'').should == :invalid_byte_sequence
+      begin
+        ec.convert("\xfffffffff")
+      rescue Encoding::InvalidByteSequenceError => e
+        e.incomplete_input?.should be_false
+      end
+    end
+  end
+end