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dpgeorgedpgeorge
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tests/extmod/vfs_fat_fileio1: Add test for failing alloc with finaliser.
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‎tests/extmod/vfs_fat_fileio1.py‎

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@@ -113,3 +113,15 @@ def ioctl(self, op, arg):
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vfs.remove("foo_file.txt")
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print(list(vfs.ilistdir()))
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# Here we test that opening a file with the heap locked fails correctly. This
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# is a special case because file objects use a finaliser and allocating with a
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# finaliser is a different path to normal allocation. It would be better to
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# test this in the core tests but there are no core objects that use finaliser.
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import micropython
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micropython.heap_lock()
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try:
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vfs.open('x', 'r')
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except MemoryError:
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print('MemoryError')
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micropython.heap_unlock()

‎tests/extmod/vfs_fat_fileio1.py.exp‎

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@@ -11,3 +11,4 @@ o
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d
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True
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[('foo_dir', 16384, 0)]
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MemoryError

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