added tests

.gitignore

@@ -4,3 +4,5 @@ __pycache__/
 .idea/
 .cache/
 .pytest_cache/
+bin/
+.coverage

test/data/symbolic_link_representation

+symbolic link -> /tmp

test/unit/test_type.py

+from pathlib import Path
+
+from fact_helper_file.type import get_file_type_from_path, get_file_type_from_binary
+
+
+def test_get_file_type_system_magic():
+    zip_file = Path(__file__).parent.parent / 'data' / 'test.zip'
+    file_type = get_file_type_from_path(str(zip_file))
+    assert file_type['mime'] == 'application/zip', 'mime type not correct'
+    assert file_type['full'] == 'Zip archive data, at least v2.0 to extract', 'full type not correct'
+
+    assert file_type == get_file_type_from_binary(zip_file.read_bytes())
+
+
+def test_get_file_type_custom_magic():
+    ros_file = Path(__file__).parent.parent / 'data' / 'ros_header'
+    file_type = get_file_type_from_path(str(ros_file))
+    assert file_type['mime'] == 'firmware/ros', 'mime type not correct'
+    assert file_type['full'] == 'ROS Container', 'full type not correct'
+
+    assert file_type == get_file_type_from_binary(ros_file.read_bytes())
+
+
+def test_get_file_type_of_internal_link_representation():
+    sym_link_file = Path(__file__).parent.parent / 'data' / 'symbolic_link_representation'
+    file_type = get_file_type_from_path(str(sym_link_file))
+    assert file_type['full'] == 'symbolic link to \'/tmp\''
+    assert file_type['mime'] == 'inode/symlink'
+
+    assert file_type == get_file_type_from_binary(sym_link_file.read_bytes())
+
+
+def test_get_file_type_file_doesnt_exist():
+    file_type = get_file_type_from_path('/error/broken/link')
+    assert file_type['full'] == 'Error: File not in storage!'
+    assert file_type['mime'] == 'error/file-not-found'
+
+
+def test_get_file_type_from_none():
+    file_type = get_file_type_from_binary(None)
+    assert file_type['mime'] == 'application/octet-stream'
+    assert file_type['full'] == 'data'