diff --git a/tests/test_files/myfile b/tests/test_files/myfile
deleted file mode 100644
index 1e35ee2e..00000000
--- a/tests/test_files/myfile
+++ /dev/null
@@ -1,2 +0,0 @@
-HelloWorld.
-
diff --git a/tests/test_files/myfile.gz b/tests/test_files/myfile.gz
deleted file mode 100644
index c57dc4e1..00000000
Binary files a/tests/test_files/myfile.gz and /dev/null differ
diff --git a/tests/test_files/myfile_bz2.bz2.gz b/tests/test_files/myfile_bz2.bz2.gz
deleted file mode 100644
index 80626091..00000000
Binary files a/tests/test_files/myfile_bz2.bz2.gz and /dev/null differ
diff --git a/tests/test_files/myfile_gz.gz b/tests/test_files/myfile_gz.gz
deleted file mode 100644
index e23fe3b2..00000000
Binary files a/tests/test_files/myfile_gz.gz and /dev/null differ
diff --git a/tests/test_files/myfile_lzma.lzma b/tests/test_files/myfile_lzma.lzma
deleted file mode 100644
index efcaa021..00000000
Binary files a/tests/test_files/myfile_lzma.lzma and /dev/null differ
diff --git a/tests/test_files/myfile_lzma.lzma.gz b/tests/test_files/myfile_lzma.lzma.gz
deleted file mode 100644
index e01bafdc..00000000
Binary files a/tests/test_files/myfile_lzma.lzma.gz and /dev/null differ
diff --git a/tests/test_files/myfile_txt b/tests/test_files/myfile_txt
deleted file mode 100644
index 1e35ee2e..00000000
--- a/tests/test_files/myfile_txt
+++ /dev/null
@@ -1,2 +0,0 @@
-HelloWorld.
-
diff --git a/tests/test_files/myfile_txt.gz b/tests/test_files/myfile_txt.gz
deleted file mode 100644
index 467b4963..00000000
Binary files a/tests/test_files/myfile_txt.gz and /dev/null differ
diff --git a/tests/test_files/myfile_xz.xz b/tests/test_files/myfile_xz.xz
deleted file mode 100644
index af2cccd7..00000000
Binary files a/tests/test_files/myfile_xz.xz and /dev/null differ
diff --git a/tests/test_files/myfile_xz.xz.gz b/tests/test_files/myfile_xz.xz.gz
deleted file mode 100644
index 9fd186e8..00000000
Binary files a/tests/test_files/myfile_xz.xz.gz and /dev/null differ
diff --git a/tests/test_os.py b/tests/test_os.py
index c4119c76..4aa5b1b9 100644
--- a/tests/test_os.py
+++ b/tests/test_os.py
@@ -89,7 +89,7 @@ def test_makedirs_p(self):
         assert os.path.exists(self.test_dir_path)
         makedirs_p(self.test_dir_path)
         with pytest.raises(OSError):
-            makedirs_p(os.path.join(TEST_DIR, "myfile_txt"))
+            makedirs_p(os.path.join(TEST_DIR, "3000_lines.txt"))
 
     def teardown_method(self):
         os.rmdir(self.test_dir_path)