Started tests for IBuffer class

diff --git a/tests/test_ibuffer.cpp b/tests/test_ibuffer.cpp
new file mode 100644 (file)
index 0000000..b22daf1
--- /dev/null
+++ b/tests/test_ibuffer.cpp
@@ -0,0 +1,128 @@
+// Unit Test Framework Includes
+#include "UnitTest++.h"
+
+// Supporting Includes
+#include <iostream>
+
+// File To Test
+#include "ibuffer.h"
+
+using namespace UnitTest;
+
+//-----------------------------------------------------------------------------
+// Helper Functions and Classes
+//-----------------------------------------------------------------------------
+class TestIBuffer : public IBuffer
+{
+    public:
+        unsigned int cur_size;
+        unsigned int times_size_called;
+        unsigned int times_clear_called;
+        unsigned int times_load_called;
+
+        TestIBuffer() : cur_size(0),
+                        times_size_called(0),
+                        times_clear_called(0),
+                        times_load_called(0) {}
+
+        unsigned int size() {
+            times_size_called++;
+            return cur_size;
+        }
+
+        void clear() {
+            times_clear_called++;
+            cur_size = 0;
+        }
+
+        void load() {
+            times_load_called++;
+            cur_size++;
+        }
+};
+//-----------------------------------------------------------------------------
+// Begin Unit Tests
+//-----------------------------------------------------------------------------
+namespace {
+    //-------------------------------------------------------------------------
+    // Test consume() method
+    //-------------------------------------------------------------------------
+    TEST(Verify_consume_clears_the_current_buffer_when_not_marked_and_synced)
+    {
+        TestIBuffer buffer;
+        buffer.cur_size = 1;
+
+        CHECK( 0 == buffer.times_size_called );
+        CHECK( 0 == buffer.times_clear_called );
+        CHECK( 0 == buffer.location() );
+        buffer.consume();
+        CHECK( 1 == buffer.cur_size );
+        CHECK( 0 == buffer.location() );
+        CHECK( 3 == buffer.times_size_called );
+        CHECK( 1 == buffer.times_clear_called );
+    }
+
+    TEST(Verify_consume_advances_the_index_when_the_buffer_is_out_of_sync)
+    {
+        TestIBuffer buffer;
+        buffer.cur_size = 2;
+
+        CHECK( 0 == buffer.times_size_called );
+        CHECK( 0 == buffer.times_clear_called );
+        CHECK( 0 == buffer.location() );
+        buffer.consume();
+        CHECK( 2 == buffer.cur_size );
+        CHECK( 1 == buffer.location() );
+        CHECK( 3 == buffer.times_size_called );
+        CHECK( 0 == buffer.times_clear_called );
+    }
+
+    TEST(Verify_consume_does_not_consume_when_marked)
+    {
+        TestIBuffer buffer;
+        buffer.cur_size = 1;
+        buffer.mark();
+
+        CHECK( 0 == buffer.times_size_called );
+        CHECK( 0 == buffer.times_clear_called );
+        CHECK( 0 == buffer.location() );
+        buffer.consume();
+        CHECK( 2 == buffer.cur_size );
+        CHECK( 1 == buffer.location() );
+        CHECK( 3 == buffer.times_size_called );
+        CHECK( 0 == buffer.times_clear_called );
+    }
+
+    //--------------------
+    // TODO: Check if this test is needed.
+    //--------------------
+    //TEST(Verify_consume_handles_a_call_when_not_initialized)
+    //{
+    //    TestIBuffer buffer;
+
+    //    CHECK( 0 == buffer.times_size_called );
+    //    CHECK( 0 == buffer.times_clear_called );
+    //    CHECK( 0 == buffer.location() );
+    //    buffer.consume();
+    //    CHECK( 2 == buffer.cur_size );
+    //    CHECK( 1 == buffer.location() );
+    //    CHECK( 3 == buffer.times_size_called );
+    //    CHECK( 0 == buffer.times_clear_called );
+    //}
+
+    //-------------------------------------------------------------------------
+    // Test sync() method
+    //-------------------------------------------------------------------------
+    TEST(Verify_sync_loads_input_to_desired_index_and_sets_the_current_index)
+    {
+        TestIBuffer buffer;
+    }
+
+    //-------------------------------------------------------------------------
+    // Test fill() method
+    //-------------------------------------------------------------------------
+    TEST(Verify_fill_loads_buffer_to_desired_index)
+    {
+        TestIBuffer buffer;
+    }
+}