From f6338da8d0a2b2fb788dbd2f369dd704b85451e7 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Thu, 4 Aug 2016 22:38:18 -0400
Subject: [PATCH] add PieceTable::Cursor::operator*(), add unit test

---
 src/core/PieceTable.h   | 6 ++++++
 test/src/test_Buffer.cc | 8 ++++++++
 2 files changed, 14 insertions(+)

diff --git a/src/core/PieceTable.h b/src/core/PieceTable.h
index 5782c45..b279d5c 100644
--- a/src/core/PieceTable.h
+++ b/src/core/PieceTable.h
@@ -63,6 +63,12 @@ public:
 
         /** Virtual column (0 based). */
         uint32_t column;
+
+        uint32_t operator*() const
+        {
+            /* TODO: Use Encoding */
+            return piece->start[offset];
+        }
     };
 
     PieceTable(const uint8_t * file_buffer, unsigned long file_buffer_size);
diff --git a/test/src/test_Buffer.cc b/test/src/test_Buffer.cc
index 11757f3..3aedb48 100644
--- a/test/src/test_Buffer.cc
+++ b/test/src/test_Buffer.cc
@@ -21,3 +21,11 @@ TEST(BufferTest, writes_an_identical_file_to_what_is_loaded_if_no_changes_were_p
         TestSupport::compare_files(e, "test/tmp/f");
     }
 }
+
+TEST(BufferTest, allows_navigating_using_cursors)
+{
+    Buffer b;
+    ASSERT_TRUE(b.load_from_file("test/files/line_endings/lf_format.txt"));
+    std::shared_ptr<PieceTable::Cursor> cursor = b.piece_table->add_cursor();
+    EXPECT_EQ((uint32_t)'H', **cursor);
+}