add testcase for gdimagestring

tests/CMakeLists.txt

@@ -60,6 +60,7 @@ if (BUILD_TEST)
 		gdimagescale
 		gdimagescatterex
 		gdimagesetpixel
+		gdimagestring
 		gdimagestringft
 		gdimagestringftex
 		gdimagetruecolortopalette

tests/Makefile.am

@@ -56,6 +56,7 @@ include gdimagerotate/Makemodule.am
 include gdimagescale/Makemodule.am
 include gdimagescatterex/Makemodule.am
 include gdimagesetpixel/Makemodule.am
+include gdimagestring/Makemodule.am
 include gdimagestringft/Makemodule.am
 include gdimagestringftex/Makemodule.am
 include gdimagetruecolortopalette/Makemodule.am

tests/gdimagestring/.gitignore

@@ -0,0 +1 @@
+/gdimagestring

tests/gdimagestring/CMakeLists.txt

@@ -0,0 +1,7 @@
+IF(PNG_FOUND)
+LIST(APPEND TESTS_FILES
+	gdimagestring
+)
+ENDIF(PNG_FOUND)
+
+ADD_GD_TESTS()

tests/gdimagestring/Makemodule.am

@@ -0,0 +1,8 @@
+if HAVE_LIBPNG
+libgd_test_programs += \
+	gdimagestring/gdimagestring
+endif
+
+EXTRA_DIST += \
+	gdimagestring/CMakeLists.txt \
+	gdimagestring/gdimagestring_exp.png

tests/gdimagestring/gdimagestring.c

@@ -0,0 +1,34 @@
+/**
+ * Base test for gdImageString()
+ */
+#include <gd.h>
+#include <gdfontl.h>
+#include "gdtest.h"
+#include <string.h>
+
+int main()
+{
+	/* Declare the image */
+	gdImagePtr im = NULL;
+	char *s = "Hello gd";
+	int foreground = 0;
+	int error = 0;
+	gdFontPtr fontptr = gdFontGetLarge();
+
+	im = gdImageCreate(100, 50);
+	gdImageColorAllocate(im, 202, 202, 0);
+	foreground = gdImageColorAllocate(im, 22, 4, 238);
+
+	gdImageString(im, fontptr,
+			im->sx / 2 - (strlen(s) * fontptr->w / 2),
+			im->sy / 2 - fontptr->h / 2,
+			(unsigned char*)s, foreground);
+
+	if (!gdAssertImageEqualsToFile("gdimagestring/gdimagestring_exp.png", im))
+		error= 1;
+
+	/* Destroy the image in memory. */
+	gdImageDestroy(im);
+
+	return error;
+}