Added more tests for image descriptions.

test/functional/src/test_image52.c

@@ -0,0 +1,22 @@
+/*****************************************************************************
+ * Test cases for libxlsxwriter.
+ *
+ * Test to compare output against Excel files.
+ *
+ * Copyright 2014-2020, John McNamara, jmcnamara@cpan.org
+ *
+ */
+
+#include "xlsxwriter.h"
+
+int main() {
+
+    lxw_workbook  *workbook  = workbook_new("test_image52.xlsx");
+    lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);
+
+    lxw_image_options options = {.description = "This is some alternative text"};
+
+    worksheet_insert_image_opt(worksheet, CELL("E9"), "images/red.png", &options);
+
+    return workbook_close(workbook);
+}

test/functional/src/test_image53.c

@@ -0,0 +1,22 @@
+/*****************************************************************************
+ * Test cases for libxlsxwriter.
+ *
+ * Test to compare output against Excel files.
+ *
+ * Copyright 2014-2020, John McNamara, jmcnamara@cpan.org
+ *
+ */
+
+#include "xlsxwriter.h"
+
+int main() {
+
+    lxw_workbook  *workbook  = workbook_new("test_image53.xlsx");
+    lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);
+
+    lxw_image_options options = {.description = ""};
+
+    worksheet_insert_image_opt(worksheet, CELL("E9"), "images/red.png", &options);
+
+    return workbook_close(workbook);
+}

test/functional/test_image.py

@@ -127,6 +127,7 @@ class TestCompareXLSXFiles(base_test_class.XLSXBaseTest):
     def test_image47(self):
         self.run_exe_test('test_image47')
 
+    # Some of the following tests require MD5 hash support to remove duplicate images.
     @pytest.mark.skipif(os.environ.get('USE_NO_MD5'), reason="compiled without MD5 support")
     def test_image48(self):
         self.run_exe_test('test_image48')
@@ -143,6 +144,12 @@ class TestCompareXLSXFiles(base_test_class.XLSXBaseTest):
     def test_image51(self):
         self.run_exe_test('test_image51')
 
+    def test_image52(self):
+        self.run_exe_test('test_image52')
+
+    def test_image53(self):
+        self.run_exe_test('test_image53')
+
     # Test in-memory image handling.
     def test_image81(self):
         self.run_exe_test('test_image81', 'image01.xlsx')