micropython: add micropython component

components/language/micropython/tests/extmod/vfs_posix.py

@@ -0,0 +1,89 @@
+# Test for VfsPosix
+
+try:
+    import uos
+
+    uos.VfsPosix
+except (ImportError, AttributeError):
+    print("SKIP")
+    raise SystemExit
+
+# We need a directory for testing that doesn't already exist.
+# Skip the test if it does exist.
+temp_dir = "micropy_test_dir"
+try:
+    uos.stat(temp_dir)
+    print("SKIP")
+    raise SystemExit
+except OSError:
+    pass
+
+# getcwd and chdir
+curdir = uos.getcwd()
+uos.chdir("/")
+print(uos.getcwd())
+uos.chdir(curdir)
+print(uos.getcwd() == curdir)
+
+# stat
+print(type(uos.stat("/")))
+
+# listdir and ilistdir
+print(type(uos.listdir("/")))
+
+# mkdir
+uos.mkdir(temp_dir)
+
+# file create
+f = open(temp_dir + "/test", "w")
+f.write("hello")
+f.close()
+
+# close on a closed file should succeed
+f.close()
+
+# construct a file object using the type constructor, with a raw fileno
+f = type(f)(2)
+print(f)
+
+# file read
+f = open(temp_dir + "/test", "r")
+print(f.read())
+f.close()
+
+# rename
+uos.rename(temp_dir + "/test", temp_dir + "/test2")
+print(uos.listdir(temp_dir))
+
+# construct new VfsPosix with path argument
+vfs = uos.VfsPosix(temp_dir)
+print(list(i[0] for i in vfs.ilistdir(".")))
+
+# stat, statvfs (statvfs may not exist)
+print(type(vfs.stat(".")))
+if hasattr(vfs, "statvfs"):
+    assert type(vfs.statvfs(".")) is tuple
+
+# check types of ilistdir with str/bytes arguments
+print(type(list(vfs.ilistdir("."))[0][0]))
+print(type(list(vfs.ilistdir(b"."))[0][0]))
+
+# remove
+uos.remove(temp_dir + "/test2")
+print(uos.listdir(temp_dir))
+
+# remove with error
+try:
+    uos.remove(temp_dir + "/test2")
+except OSError:
+    print("remove OSError")
+
+# rmdir
+uos.rmdir(temp_dir)
+print(temp_dir in uos.listdir())
+
+# rmdir with error
+try:
+    uos.rmdir(temp_dir)
+except OSError:
+    print("rmdir OSError")