Added additional tests for control chars.

Issue #42

test/functional/src/test_gh42_01.c

@@ -0,0 +1,25 @@
+/*****************************************************************************
+ * Test cases for libxlsxwriter.
+ *
+ * Test to compare output against Excel files.
+ *
+ * Copyright 2014-2015, John McNamara, jmcnamara@cpan.org
+ *
+ */
+
+#include "xlsxwriter.h"
+
+int main() {
+
+    lxw_workbook  *workbook  = new_workbook("test_gh42_01.xlsx");
+    lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);
+
+    char string[] = {0xe5, 0x9b, 0xbe, 0x14, 0xe5, 0x9b, 0xbe, 0x00};
+
+    worksheet_write_string(worksheet, 0, 0, string, NULL);
+
+    workbook_close(workbook);
+
+    return 0;
+}
+

test/functional/src/test_gh42_02.c

@@ -0,0 +1,25 @@
+/*****************************************************************************
+ * Test cases for libxlsxwriter.
+ *
+ * Test to compare output against Excel files.
+ *
+ * Copyright 2014-2015, John McNamara, jmcnamara@cpan.org
+ *
+ */
+
+#include "xlsxwriter.h"
+
+int main() {
+
+    lxw_workbook  *workbook  = new_workbook("test_gh42_02.xlsx");
+    lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);
+
+    char string[] = {0xe5, 0x9b, 0xbe, 0x20, 0xe5, 0x9b, 0xbe, 0x00};
+
+    worksheet_write_string(worksheet, 0, 0, string, NULL);
+
+    workbook_close(workbook);
+
+    return 0;
+}
+

test/functional/test_misc.py

@@ -26,3 +26,9 @@ class TestCompareXLSXFiles(base_test_class.XLSXBaseTest):
 
     def test_shared_strings01(self):
         self.run_exe_test('test_shared_strings01')
+
+    def test_gh42_01(self):
+        self.run_exe_test('test_gh42_01')
+
+    def test_gh42_02(self):
+        self.run_exe_test('test_gh42_02')