micropython: add micropython component

2022-09-29 12:10:37 +08:00
parent 1514f1cb9b
commit dd76146324
2679 changed files with 354110 additions and 0 deletions
--- a/components/language/micropython/tests/extmod/vfs_lfs_file.py
+++ b/components/language/micropython/tests/extmod/vfs_lfs_file.py
@@ -0,0 +1,121 @@
+# Test for VfsLittle using a RAM device, file IO
+
+try:
+    import uos
+
+    uos.VfsLfs1
+    uos.VfsLfs2
+except (ImportError, AttributeError):
+    print("SKIP")
+    raise SystemExit
+
+
+class RAMBlockDevice:
+    ERASE_BLOCK_SIZE = 1024
+
+    def __init__(self, blocks):
+        self.data = bytearray(blocks * self.ERASE_BLOCK_SIZE)
+
+    def readblocks(self, block, buf, off):
+        addr = block * self.ERASE_BLOCK_SIZE + off
+        for i in range(len(buf)):
+            buf[i] = self.data[addr + i]
+
+    def writeblocks(self, block, buf, off):
+        addr = block * self.ERASE_BLOCK_SIZE + off
+        for i in range(len(buf)):
+            self.data[addr + i] = buf[i]
+
+    def ioctl(self, op, arg):
+        if op == 4:  # block count
+            return len(self.data) // self.ERASE_BLOCK_SIZE
+        if op == 5:  # block size
+            return self.ERASE_BLOCK_SIZE
+        if op == 6:  # erase block
+            return 0
+
+
+def test(bdev, vfs_class):
+    print("test", vfs_class)
+
+    # mkfs
+    vfs_class.mkfs(bdev)
+
+    # construction
+    vfs = vfs_class(bdev)
+
+    # create text, print, write, close
+    f = vfs.open("test.txt", "wt")
+    print(f)
+    f.write("littlefs")
+    f.close()
+
+    # close already-closed file
+    f.close()
+
+    # create binary, print, write, flush, close
+    f = vfs.open("test.bin", "wb")
+    print(f)
+    f.write("littlefs")
+    f.flush()
+    f.close()
+
+    # create for append
+    f = vfs.open("test.bin", "ab")
+    f.write("more")
+    f.close()
+
+    # create exclusive
+    f = vfs.open("test2.bin", "xb")
+    f.close()
+
+    # create exclusive with error
+    try:
+        vfs.open("test2.bin", "x")
+    except OSError:
+        print("open OSError")
+
+    # read default
+    with vfs.open("test.txt", "") as f:
+        print(f.read())
+
+    # read text
+    with vfs.open("test.txt", "rt") as f:
+        print(f.read())
+
+    # read binary
+    with vfs.open("test.bin", "rb") as f:
+        print(f.read())
+
+    # create read and write
+    with vfs.open("test.bin", "r+b") as f:
+        print(f.read(8))
+        f.write("MORE")
+    with vfs.open("test.bin", "rb") as f:
+        print(f.read())
+
+    # seek and tell
+    f = vfs.open("test.txt", "r")
+    print(f.tell())
+    f.seek(3, 0)
+    print(f.tell())
+    f.close()
+
+    # open nonexistent
+    try:
+        vfs.open("noexist", "r")
+    except OSError:
+        print("open OSError")
+
+    # open multiple files at the same time
+    f1 = vfs.open("test.txt", "")
+    f2 = vfs.open("test.bin", "b")
+    print(f1.read())
+    print(f2.read())
+    f1.close()
+    f2.close()
+
+
+bdev = RAMBlockDevice(30)
+test(bdev, uos.VfsLfs1)
+test(bdev, uos.VfsLfs2)