diff --git a/tests/commands/test_network_upload.py b/tests/commands/test_network_upload.py
new file mode 100644
index 000000000..7d316620f
--- /dev/null
+++ b/tests/commands/test_network_upload.py
@@ -0,0 +1,111 @@
+import pathlib
+from unittest.mock import MagicMock, patch
+
+import click
+import pytest
+from click.testing import CliRunner
+
+from codecov_cli.commands.network_upload import network_upload
+from codecov_cli.types import UploadCollectionResult
+
+
+@pytest.fixture
+def mock_network_finder():
+    with patch("codecov_cli.commands.network_upload.NetworkFinder") as mock:
+        yield mock
+
+
+@pytest.fixture
+def mock_upload_sender():
+    with patch("codecov_cli.commands.network_upload.UploadSender") as mock:
+        yield mock
+
+
+def test_network_upload_dry_run(mock_network_finder):
+    mock_network_finder.return_value.find_files.return_value = ["file1.py", "file2.py"]
+    runner = CliRunner()
+    result = runner.invoke(
+        network_upload,
+        [
+            "--root-dir",
+            "/test/path",
+            "--network-filter",
+            ".*\\.py",
+            "--dry-run",
+            "--commit-sha",
+            "abcdef123456",
+            "--token",
+            "test-token",
+        ],
+    )
+    assert result.exit_code == 0
+    assert "Dry run: No files will be uploaded." in result.output
+    assert "file1.py" in result.output
+    assert "file2.py" in result.output
+
+
+def test_network_upload_no_files_found(mock_network_finder):
+    mock_network_finder.return_value.find_files.return_value = []
+    runner = CliRunner()
+    result = runner.invoke(
+        network_upload,
+        [
+            "--root-dir",
+            "/test/path",
+            "--commit-sha",
+            "abcdef123456",
+            "--token",
+            "test-token",
+        ],
+    )
+    assert result.exit_code == 0
+    assert "No files found in the network." in result.output
+
+
+def test_network_upload_success(mock_network_finder, mock_upload_sender):
+    mock_network_finder.return_value.find_files.return_value = ["file1.py", "file2.py"]
+    mock_sender = MagicMock()
+    mock_sender.send_upload_data.return_value = MagicMock(status_code=200)
+    mock_upload_sender.return_value = mock_sender
+
+    runner = CliRunner()
+    result = runner.invoke(
+        network_upload,
+        [
+            "--root-dir",
+            "/test/path",
+            "--commit-sha",
+            "abcdef123456",
+            "--token",
+            "test-token",
+        ],
+    )
+    assert result.exit_code == 0
+    assert "Network files successfully uploaded to Codecov." in result.output
+
+    mock_sender.send_upload_data.assert_called_once()
+    call_args = mock_sender.send_upload_data.call_args[0]
+    assert isinstance(call_args[0], UploadCollectionResult)
+    assert call_args[0].network == ["file1.py", "file2.py"]
+    assert call_args[1] == "abcdef123456"  # commit_sha
+    assert call_args[2] == "test-token"  # token
+
+
+def test_network_upload_failure(mock_network_finder, mock_upload_sender):
+    mock_network_finder.return_value.find_files.return_value = ["file1.py", "file2.py"]
+    mock_sender = MagicMock()
+    mock_sender.send_upload_data.return_value = MagicMock(status_code=400)
+    mock_upload_sender.return_value = mock_sender
+
+    runner = CliRunner()
+    result = runner.invoke(
+        network_upload,
+        [
+            "--root-dir", "/test/path",
+            "--commit-sha", "abcdef123456",
+            "--token", "test-token",
+            "--fail-on-error",
+        ],
+    )
+    assert result.exit_code == 1
+    assert "Failed to upload network files. Status code: 400" in result.output
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