add a test for reading files >4KB

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@53556 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/tests/textfile/textfiletest.cpp b/tests/textfile/textfiletest.cpp
index 821cd76fef39e2b2de8013f763dbe206027a6010..8b5717082f99b8a93836a151c8b7624f1a568ec9 100644 (file)
--- a/tests/textfile/textfiletest.cpp
+++ b/tests/textfile/textfiletest.cpp
@@ -22,6 +22,7 @@
 #ifndef WX_PRECOMP
 #endif // WX_PRECOMP
 
+#include "wx/ffile.h"
 #include "wx/textfile.h"
 
 // ----------------------------------------------------------------------------
@@ -46,6 +47,7 @@ private:
         CPPUNIT_TEST( ReadUTF8 );
         CPPUNIT_TEST( ReadUTF16 );
 #endif // wxUSE_UNICODE
+        CPPUNIT_TEST( ReadBig );
     CPPUNIT_TEST_SUITE_END();
 
     void ReadEmpty();
@@ -57,6 +59,7 @@ private:
     void ReadUTF8();
     void ReadUTF16();
 #endif // wxUSE_UNICODE
+    void ReadBig();
 
     // return the name of the test file we use
     static const char *GetTestFileName() { return "textfiletest.txt"; }
@@ -199,6 +202,29 @@ void TextFileTestCase::ReadUTF16()
 #endif // wxHAVE_U_ESCAPE
 }
 
+void TextFileTestCase::ReadBig()
+{
+    static const size_t NUM_LINES = 10000;
+
+    {
+        wxFFile f(GetTestFileName(), "w");
+        for ( size_t n = 0; n < NUM_LINES; n++ )
+        {
+            fprintf(f.fp(), "Line %lu\n", (unsigned long)n + 1);
+        }
+    }
+
+    wxTextFile f;
+    CPPUNIT_ASSERT( f.Open(GetTestFileName()) );
+
+    CPPUNIT_ASSERT_EQUAL( NUM_LINES, f.GetLineCount() );
+    CPPUNIT_ASSERT_EQUAL( wxString("Line 1"), f[0] );
+    CPPUNIT_ASSERT_EQUAL( wxString("Line 999"), f[998] );
+    CPPUNIT_ASSERT_EQUAL( wxString("Line 1000"), f[999] );
+    CPPUNIT_ASSERT_EQUAL( wxString::Format("Line %lu", (unsigned long)NUM_LINES),
+                          f[NUM_LINES - 1] );
+}
+
 #endif // wxUSE_UNICODE
 
 #endif // wxUSE_TEXTFILE