@@ -80,11 +80,11 @@
 	}
 }
 
 func TestStepCycle(t *testing.T) {
 	for i := 0; i < len(testData); i++ {
-		for j := 1; j < len(testData); j++ {
+		for j := 1; j < len(testData[i]); j++ {
 			if err := cycle(testData[i], j); err != nil {
 				t.Error("Error for testData[", i, "], step[", j, "] ", err)
 			}
 		}
 	}
@@ -113,10 +113,11 @@
 
 			_, err = compressor.Write(data[:step])
 			if err != nil {
 				return err
 			}
+
 			data = data[step:]
 		} else {
 			step = len(data)
 		}
 	}
@@ -138,12 +139,12 @@
 	delta := diff.Diff(diff.D{len(input), len(decompressed),
 		func(i, j int) bool { return input[i] == decompressed[j] }})
 
 	// Return a well-formated error if any differences are found
 	if len(delta.Added) > 0 || len(delta.Removed) > 0 {
-		return fmt.Errorf("Unexpected decompressed output %v\ninput:  (%d) %#x\ntrace:  (%d) %#x\noutput: (%d) %#x\n",
-			delta, len(input), input, len(trace), trace, len(decompressed), decompressed)
+		return fmt.Errorf("Unexpected decompressed output for step %d, delta %v\ninput:  (%d) %#x\ntrace:  (%d) %#x\noutput: (%d) %#x\n",
+			step, delta, len(input), input, len(trace), trace, len(decompressed), decompressed)
 	}
 
 	// All is good :)
 	return nil
 }