diff --git a/Tests/test_file_blp.py b/Tests/test_file_blp.py
index 0afac6534..5ad81094e 100644
--- a/Tests/test_file_blp.py
+++ b/Tests/test_file_blp.py
@@ -2,7 +2,12 @@ from __future__ import annotations
 
 from pathlib import Path
 
+import struct
 import pytest
+from unittest.mock import Mock, patch
+from PIL.BlpImagePlugin import _BLPBaseDecoder
+from PIL.BlpImagePlugin import BLP1Decoder
+
 
 from PIL import Image
 
@@ -15,28 +20,11 @@ from .helper import (
 
 
 def test_load_blp1() -> None:
-    # Test when _blp_compression is Format.JPEG
     with Image.open("Tests/images/blp/blp1_jpeg.blp") as im:
         assert_image_equal_tofile(im, "Tests/images/blp/blp1_jpeg.png")
 
-    # Test when _blp_compression is 1 and _blp_encoding is 4 or 5
-    with Image.open("Tests/images/blp/blp1_encoding4.blp") as im:
+    with Image.open("Tests/images/blp/blp1_jpeg2.blp") as im:
         im.load()
-    with Image.open("Tests/images/blp/blp1_encoding5.blp") as im:
-        im.load()
-
-    # Test when _blp_compression is 1 but _blp_encoding is not 4 or 5
-    with pytest.raises(BLPFormatError):
-        with Image.open("Tests/images/blp/blp1_invalid_encoding.blp") as im:
-            im.load()
-
-    # Test when _blp_compression is not 1 or Format.JPEG
-    with pytest.raises(BLPFormatError):
-        with Image.open("Tests/images/blp/blp1_invalid_compression.blp") as im:
-            im.load()
-
-
-
 
 def test_load_blp2_raw() -> None:
     with Image.open("Tests/images/blp/blp2_raw.blp") as im:
@@ -92,3 +80,21 @@ def test_crashes(test_file: str) -> None:
         with Image.open(f) as im:
             with pytest.raises(OSError):
                 im.load()
+
+def test_decode():
+    # Create a mock instance of BLP1Decoder with 'RGB' as the mode
+    decoder = BLP1Decoder('RGB')
+
+    # Mock the _read_blp_header and _load methods to simulate normal execution
+    with patch.object(decoder, '_read_blp_header', return_value=None), \
+        patch.object(decoder, '_load', return_value=None):
+        # Call the decode method and verify that it returns (-1, 0)
+        assert decoder.decode(b'') == (-1, 0)
+
+    # Mock the _read_blp_header and _load methods to raise a struct.error
+    with patch.object(decoder, '_read_blp_header', side_effect=struct.error), \
+        patch.object(decoder, '_load', side_effect=struct.error):
+
+        # Call the decode method and verify that it raises an OSError with the expected message
+        with pytest.raises(OSError, match="Truncated BLP file"):
+            decoder.decode(b'')
diff --git a/Tests/test_file_eps.py b/Tests/test_file_eps.py
index 258e02b8f..53d149e61 100644
--- a/Tests/test_file_eps.py
+++ b/Tests/test_file_eps.py
@@ -3,6 +3,9 @@ from __future__ import annotations
 import io
 from pathlib import Path
 
+import unittest
+from unittest.mock import patch, MagicMock
+
 import pytest
 
 from PIL import EpsImagePlugin, Image, UnidentifiedImageError, features
@@ -443,3 +446,40 @@ def test_invalid_data_after_eof() -> None:
 
     with Image.open(img_bytes) as img:
         assert img.mode == "RGB"
+
+# class TestHasGhostscript(unittest.TestCase):
+#     @patch('PIL.EpsImagePlugin.shutil.which')
+#     @patch('PIL.EpsImagePlugin.sys.platform', 'win32')
+#     def test_windows_with_ghostscript(self, mock_which):
+#         # Simulate each binary being found in turn
+#         for binary in ("gswin32c", "gswin64c", "gs"):
+#             with self.subTest(binary=binary):
+#                 EpsImagePlugin.gs_binary = None  # Reset global state
+#                 mock_which.side_effect = lambda x: x if x == binary else None
+#                 self.assertTrue(EpsImagePlugin.has_ghostscript())
+#                 self.assertEqual(EpsImagePlugin.gs_windows_binary, binary)
+#
+#     @patch('PIL.EpsImagePlugin.shutil.which', return_value=None)
+#     @patch('PIL.EpsImagePlugin.sys.platform', 'win32')
+#     def test_windows_without_ghostscript(self, mock_which):
+#         EpsImagePlugin.gs_binary = None  # Reset global state
+#         self.assertFalse(EpsImagePlugin.has_ghostscript())
+#         self.assertFalse(EpsImagePlugin.gs_windows_binary)
+#
+#     @patch('PIL.EpsImagePlugin.subprocess.check_call')
+#     @patch('PIL.EpsImagePlugin.sys.platform', 'linux')
+#     def test_non_windows_with_ghostscript(self, mock_check_call):
+#         EpsImagePlugin.gs_binary = None  # Reset global state
+#         mock_check_call.return_value = 0  # Simulate successful call
+#         self.assertTrue(EpsImagePlugin.has_ghostscript())
+#         self.assertEqual(EpsImagePlugin.gs_binary, "gs")
+#
+#     @patch('PIL.EpsImagePlugin.subprocess.check_call', side_effect=OSError)
+#     @patch('PIL.EpsImagePlugin.sys.platform', 'linux')
+#     def test_non_windows_without_ghostscript(self, mock_check_call):
+#         EpsImagePlugin.gs_binary = None  # Reset global state
+#         self.assertFalse(EpsImagePlugin.has_ghostscript())
+#         self.assertFalse(EpsImagePlugin.gs_binary)
+#
+# if __name__ == '__main__':
+#     unittest.main()
diff --git a/Tests/test_file_fli.py b/Tests/test_file_fli.py
index 97efd32f2..d0c2335ae 100644
--- a/Tests/test_file_fli.py
+++ b/Tests/test_file_fli.py
@@ -2,6 +2,9 @@ from __future__ import annotations
 
 import warnings
 
+import unittest
+from unittest.mock import patch, MagicMock
+
 import pytest
 
 from PIL import FliImagePlugin, Image, ImageFile
diff --git a/Tests/test_file_icns.py b/Tests/test_file_icns.py
index 6c6e17a76..bd3593626 100644
--- a/Tests/test_file_icns.py
+++ b/Tests/test_file_icns.py
@@ -2,11 +2,12 @@ from __future__ import annotations
 
 import io
 import os
+import struct
 import warnings
 from pathlib import Path
 
 import pytest
-
+from unittest.mock import Mock, patch
 from PIL import IcnsImagePlugin, Image, _binary
 
 from .helper import assert_image_equal, assert_image_similar_tofile, skip_unless_feature
@@ -154,3 +155,22 @@ def test_icns_decompression_bomb() -> None:
     ) as im:
         with pytest.raises(Image.DecompressionBombError):
             im.load()
+
+def test_read_32t():
+    # Create a mock instance of a file-like object
+    fobj = io.BytesIO()
+
+    # Mock the file object to simulate normal execution
+    fobj.write(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
+    fobj.seek(0)
+    start_length = (0, 12)
+    size = (1, 1, 1)
+    result = IcnsImagePlugin.read_32t(fobj, start_length, size)
+    assert isinstance(result, dict)
+
+    # Simulate an exception
+    fobj = io.BytesIO()
+    fobj.write(b'\x01\x00\x00\x00')
+    fobj.seek(0)
+    with pytest.raises(SyntaxError, match="Unknown signature, expecting 0x00000000"):
+        IcnsImagePlugin.read_32t(fobj, start_length, size)
diff --git a/Tests/test_imagefile.py b/Tests/test_imagefile.py
index 1863c20a9..75153bb42 100644
--- a/Tests/test_imagefile.py
+++ b/Tests/test_imagefile.py
@@ -4,6 +4,7 @@ from io import BytesIO
 from typing import Any
 
 import pytest
+from io import BytesIO
 
 from PIL import (
     BmpImagePlugin,
diff --git a/conftest.py b/conftest.py
index 57a5a80db..ed12317a5 100644
--- a/conftest.py
+++ b/conftest.py
@@ -8,43 +8,43 @@ from PIL import PdfParser
 pytest_plugins = ["Tests.helper"]
 
 
-def calculate_coverage(test_name):
-    all_branches = {
-        "branches1": Image.branches,
-        "branches2": PdfParser.XrefTable.branches,
-        # Add more
-    }
-
-    for name, branches in all_branches.items():
-        num_branches = len(branches)
-        branch_covered = {key: value for key, value in branches.items() if value is True}
-        sum_branches = len(branch_covered)
-        coverage = (sum_branches / num_branches) * 100
-
-        print(f"\n{name} - Branches covered: {sum_branches}")
-        print(f"{name} - Total branches: {num_branches}")
-        print(f"{name} - BRANCH COVERAGE: {coverage}%\n")
-
-    return all_branches["branches1"]
-
-
-@pytest.hookimpl(tryfirst=True)
-def pytest_runtest_protocol(item, nextitem):
-    global test_name
-
-    last_arg = sys.argv[-1]
-
-    test_name = last_arg.split('/')[-1].split('::')[-1]
-
-    test_name = test_name.rstrip('.py')
-
-    return None
-
-@pytest.hookimpl(tryfirst=True)
-def pytest_sessionfinish(session, exitstatus):
-    global test_name
-
-    coverage = calculate_coverage(test_name)
-    print("\nBRANCH COVERAGE for", test_name, ":", coverage, "%\n")
-
-    
\ No newline at end of file
+# def calculate_coverage(test_name):
+#     all_branches = {
+#         "branches1": Image.branches,
+#         "branches2": PdfParser.XrefTable.branches,
+#         # Add more
+#     }
+#
+#     for name, branches in all_branches.items():
+#         num_branches = len(branches)
+#         branch_covered = {key: value for key, value in branches.items() if value is True}
+#         sum_branches = len(branch_covered)
+#         coverage = (sum_branches / num_branches) * 100
+#
+#         print(f"\n{name} - Branches covered: {sum_branches}")
+#         print(f"{name} - Total branches: {num_branches}")
+#         print(f"{name} - BRANCH COVERAGE: {coverage}%\n")
+#
+#     return all_branches["branches1"]
+#
+#
+# @pytest.hookimpl(tryfirst=True)
+# def pytest_runtest_protocol(item, nextitem):
+#     global test_name
+#
+#     last_arg = sys.argv[-1]
+#
+#     test_name = last_arg.split('/')[-1].split('::')[-1]
+#
+#     test_name = test_name.rstrip('.py')
+#
+#     return None
+#
+# @pytest.hookimpl(tryfirst=True)
+# def pytest_sessionfinish(session, exitstatus):
+#     global test_name
+#
+#     coverage = calculate_coverage(test_name)
+#     print("\nBRANCH COVERAGE for", test_name, ":", coverage, "%\n")
+#
+#
diff --git a/src/PIL/EpsImagePlugin.py b/src/PIL/EpsImagePlugin.py
index 959e1d066..eff856c24 100644
--- a/src/PIL/EpsImagePlugin.py
+++ b/src/PIL/EpsImagePlugin.py
@@ -27,6 +27,8 @@ import re
 import subprocess
 import sys
 import tempfile
+import shutil
+
 from typing import IO
 
 from . import Image, ImageFile