Add unittest to account for new workspace functionality

Signed-off-by: lelia <lelia@socket.dev>

Author: lelia

tests/unit/test_socketcli_workspace.py

@@ -0,0 +1,18 @@
+from socketsecurity.socketcli import _normalize_workspace
+
+
+def test_normalize_workspace_none():
+    assert _normalize_workspace(None) is None
+
+
+def test_normalize_workspace_empty_string():
+    assert _normalize_workspace("") is None
+
+
+def test_normalize_workspace_whitespace_string():
+    assert _normalize_workspace("   ") is None
+
+
+def test_normalize_workspace_valid_string():
+    assert _normalize_workspace("my-workspace") == "my-workspace"
+