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-rw-r--r--Lib/test/test_bz2.py4
-rw-r--r--Lib/test/test_lzma.py4
-rw-r--r--Lib/test/test_zlib.py4
3 files changed, 6 insertions, 6 deletions
diff --git a/Lib/test/test_bz2.py b/Lib/test/test_bz2.py
index e4dd7fc..1f0b9ad 100644
--- a/Lib/test/test_bz2.py
+++ b/Lib/test/test_bz2.py
@@ -721,10 +721,10 @@ class BZ2DecompressorTest(BaseTest):
@bigmemtest(size=_4G + 100, memuse=3.3)
def testDecompress4G(self, size):
# "Test BZ2Decompressor.decompress() with >4GiB input"
- blocksize = 10 * 1024 * 1024
+ blocksize = min(10 * 1024 * 1024, size)
block = random.randbytes(blocksize)
try:
- data = block * (size // blocksize + 1)
+ data = block * ((size-1) // blocksize + 1)
compressed = bz2.compress(data)
bz2d = BZ2Decompressor()
decompressed = bz2d.decompress(compressed)
diff --git a/Lib/test/test_lzma.py b/Lib/test/test_lzma.py
index ac53bdd..13b2009 100644
--- a/Lib/test/test_lzma.py
+++ b/Lib/test/test_lzma.py
@@ -352,10 +352,10 @@ class CompressorDecompressorTestCase(unittest.TestCase):
@bigmemtest(size=_4G + 100, memuse=3)
def test_decompressor_bigmem(self, size):
lzd = LZMADecompressor()
- blocksize = 10 * 1024 * 1024
+ blocksize = min(10 * 1024 * 1024, size)
block = random.randbytes(blocksize)
try:
- input = block * (size // blocksize + 1)
+ input = block * ((size-1) // blocksize + 1)
cdata = lzma.compress(input)
ddata = lzd.decompress(cdata)
self.assertEqual(ddata, input)
diff --git a/Lib/test/test_zlib.py b/Lib/test/test_zlib.py
index 2113757..55306c6 100644
--- a/Lib/test/test_zlib.py
+++ b/Lib/test/test_zlib.py
@@ -989,10 +989,10 @@ class ZlibDecompressorTest(unittest.TestCase):
@bigmemtest(size=_4G + 100, memuse=3.3)
def testDecompress4G(self, size):
# "Test zlib._ZlibDecompressor.decompress() with >4GiB input"
- blocksize = 10 * 1024 * 1024
+ blocksize = min(10 * 1024 * 1024, size)
block = random.randbytes(blocksize)
try:
- data = block * (size // blocksize + 1)
+ data = block * ((size-1) // blocksize + 1)
compressed = zlib.compress(data)
zlibd = zlib._ZlibDecompressor()
decompressed = zlibd.decompress(compressed)