3 files changed, 29 insertions, 0 deletions
diff --git a/tests/core/test_wprintf.c b/tests/core/test_wprintf.c
new file mode 100644
index 00000000..e938bf69
--- /dev/null
+++ b/tests/core/test_wprintf.c
@@ -0,0 +1,15 @@
+#include <wchar.h>
+
+int main()
+{
+   wprintf (L"Characters: %lc %lc \n", L'a', 65);
+   wprintf (L"Decimals: %d %ld\n", 1977, 650000L);
+   wprintf (L"Preceding with blanks: %10d \n", 1977);
+   wprintf (L"Preceding with zeros: %010d \n", 1977);
+   wprintf (L"Some different radixes: %d %x %o %#x %#o \n", 100, 100, 100, 100, 100);
+   wprintf (L"floats: %4.2f %+.0e %E \n", 3.1416, 3.1416, 3.1416);
+   wprintf (L"Width trick: %*d \n", 5, 10);
+   wprintf (L"%ls \n", L"A wide string");
+   return 0;
+}
+
diff --git a/tests/core/test_wprintf.out b/tests/core/test_wprintf.out
new file mode 100644
index 00000000..f85abebb
--- /dev/null
+++ b/tests/core/test_wprintf.out
@@ -0,0 +1,8 @@
+Characters: a A 
+Decimals: 1977 650000
+Preceding with blanks:       1977 
+Preceding with zeros: 0000001977 
+Some different radixes: 100 64 144 0x64 0144 
+floats: 3.14 +3e+00 3.141600E+00 
+Width trick:    10 
+A wide string 
diff --git a/tests/test_core.py b/tests/test_core.py
index c89e785e..d7bebdc6 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -4090,6 +4090,12 @@ def process(filename):
     self.do_run(open(path_from_root('tests', 'utf32.cpp')).read(), 'OK.')
     self.do_run(open(path_from_root('tests', 'utf32.cpp')).read(), 'OK.', args=['-fshort-wchar'])
 
+  def test_wprintf(self):
+    if self.emcc_args is None: return self.skip('requires libcxx')
+    test_path = path_from_root('tests', 'core', 'test_wprintf')
+    src, output = (test_path + s for s in ('.c', '.out'))
+    self.do_run_from_file(src, output)
+
   def test_direct_string_constant_usage(self):
     if self.emcc_args is None: return self.skip('requires libcxx')