Add ndbm C module to supported list.

Author: freakboy3742

patch/Python/Setup.embedded

@@ -18,6 +18,7 @@ _collections _collectionsmodule.c
 _contextvars _contextvarsmodule.c
 _crypt _cryptmodule.c
 _csv _csv.c
+_dbm _dbmmodule.c -DHAVE_NDBM_H
 _datetime _datetimemodule.c
 _elementtree _elementtree.c \
     -I$(srcdir)/Modules/expat
@@ -108,7 +109,6 @@ zlib zlibmodule.c -I$(prefix)/include -lz
 #####################################################################
 #_curses _cursesmodule.c -lcurses -ltermcap
 #_curses_panel _curses_panel.c -lpanel -lncurses
-#_dbm _dbmmodule.c
 #_gdbm _gdbmmodule.c -I/usr/local/include -L/usr/local/lib -lgdbm
 #_tkinter _tkinter.c tkappinit.c -DWITH_APPINIT -I... -L...
 #nis nismodule.c -lnsl

tests/testbed/src/testbed/common.py

@@ -1,6 +1,8 @@
 ###########################################################################
 # Common tests
 ###########################################################################
+import os
+
 from .utils import assert_
 
 
@@ -26,6 +28,49 @@ def test_ctypes():
     absolute = full.absoluteURL
     assert_(absolute.description == "https://beeware.org/contributing")
 
+def test_dbm():
+    "The DBM module is accessible"
+    import dbm
+
+    cache_name = f'{os.path.dirname(__file__)}/dbm'
+    try:
+        with dbm.open(cache_name, 'c') as db:
+            db['hello'] = 'world'
+
+            assert_(db['hello'] == b'world')
+    finally:
+        os.remove(f'{cache_name}.db')
+
+
+def test_dbm_dumb():
+    "The dumb DBM module has been compiled and works"
+    from dbm import dumb as ddbm
+
+    cache_name = f'{os.path.dirname(__file__)}/ddbm'
+    try:
+        with ddbm.open(cache_name, 'c') as db:
+            db['hello'] = 'world'
+
+            assert_(db['hello'] == b'world')
+    finally:
+        os.remove(f'{cache_name}.bak')
+        os.remove(f'{cache_name}.dat')
+        os.remove(f'{cache_name}.dir')
+
+
+def test_dbm_ndbm():
+    "The ndbm DBM module has been compiled and works"
+    from dbm import ndbm
+
+    cache_name = f'{os.path.dirname(__file__)}/ndbm'
+    try:
+        with ndbm.open(cache_name, 'c') as db:
+            db['hello'] = 'world'
+
+            assert_(db['hello'] == b'world')
+    finally:
+        os.remove(f'{cache_name}.db')
+
 
 def test_decimal():
     "The decimal module works"