tests: Replace umodule with module everywhere.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

tests/extmod/re_groups.py

@@ -0,0 +1,30 @@
+# test match.groups()
+
+try:
+    import re
+except ImportError:
+    print("SKIP")
+    raise SystemExit
+
+try:
+    m = re.match(".", "a")
+    m.groups
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
+
+m = re.match(r"(([0-9]*)([a-z]*)[0-9]*)", "1234hello567")
+print(m.groups())
+
+m = re.match(r"([0-9]*)(([a-z]*)([0-9]*))", "1234hello567")
+print(m.groups())
+
+# optional group that matches
+print(re.match(r"(a)?b(c)", "abc").groups())
+
+# optional group that doesn't match
+print(re.match(r"(a)?b(c)", "bc").groups())
+
+# only a single match
+print(re.match(r"abc", "abc").groups())