diff --git a/Makefile b/Makefile
index 84e8c20..a965ca2 100644
--- a/Makefile
+++ b/Makefile
@@ -8,6 +8,7 @@ help: ## Display this help message
 
 .PHONY: install
 install: ## Install package
+	poetry lock --no-update
 	poetry install
 
 .PHONY: build
diff --git a/geoservercloud/geoservercloud.py b/geoservercloud/geoservercloud.py
index f7764a6..d5bf328 100644
--- a/geoservercloud/geoservercloud.py
+++ b/geoservercloud/geoservercloud.py
@@ -333,7 +333,7 @@ def publish_gwc_layer(
         self.post_request(
             "/gwc/rest/reload",
             headers={"Content-Type": "application/json"},
-            data="reload_configuration=1",
+            data="reload_configuration=1",  # type: ignore
         )
         payload = Templates.gwc_layer(workspace, layer, f"EPSG:{epsg}")
         return self.put_request(
diff --git a/poetry.lock b/poetry.lock
index a682f8c..7ce1932 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -500,6 +500,26 @@ urllib3 = ">=1.21.1,<3"
 socks = ["PySocks (>=1.5.6,!=1.5.7)"]
 use-chardet-on-py3 = ["chardet (>=3.0.2,<6)"]
 
+[[package]]
+name = "responses"
+version = "0.25.3"
+description = "A utility library for mocking out the `requests` Python library."
+category = "dev"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "responses-0.25.3-py3-none-any.whl", hash = "sha256:521efcbc82081ab8daa588e08f7e8a64ce79b91c39f6e62199b19159bea7dbcb"},
+    {file = "responses-0.25.3.tar.gz", hash = "sha256:617b9247abd9ae28313d57a75880422d55ec63c29d33d629697590a034358dba"},
+]
+
+[package.dependencies]
+pyyaml = "*"
+requests = ">=2.30.0,<3.0"
+urllib3 = ">=1.25.10,<3.0"
+
+[package.extras]
+tests = ["coverage (>=6.0.0)", "flake8", "mypy", "pytest (>=7.0.0)", "pytest-asyncio", "pytest-cov", "pytest-httpserver", "tomli", "tomli-w", "types-PyYAML", "types-requests"]
+
 [[package]]
 name = "six"
 version = "1.16.0"
@@ -557,4 +577,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.9,<4.0"
-content-hash = "23e2455d1da8f608869338e21ce0c5e7d9120fe7df6252027a0ce6a98f3e8043"
+content-hash = "78723d0efb24f526e3fe94b82f3ae6614ee2c1c251f0f71afbca2ea39d4c7457"
diff --git a/pyproject.toml b/pyproject.toml
index 2d99415..ad44579 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,6 +15,7 @@ xmltodict = "0.13.0"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "8.2.2"
+responses = "0.25.3"
 
 [build-system]
 requires = [
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..1d21149
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,11 @@
+import pytest
+
+from geoservercloud import GeoServerCloud
+
+GEOSERVER_URL = "http://localhost:8080/geoserver"
+
+
+@pytest.fixture(scope="session")
+def geoserver():
+    geoserver = GeoServerCloud(url=GEOSERVER_URL)
+    yield geoserver
diff --git a/tests/test_workspace.py b/tests/test_workspace.py
new file mode 100644
index 0000000..a12b85a
--- /dev/null
+++ b/tests/test_workspace.py
@@ -0,0 +1,52 @@
+import responses
+from conftest import GEOSERVER_URL
+
+from geoservercloud.geoservercloud import GeoServerCloud
+
+
+def test_create_workspace(geoserver: GeoServerCloud) -> None:
+    workspace = "test_workspace"
+
+    with responses.RequestsMock() as rsps:
+        rsps.post(
+            url=f"{GEOSERVER_URL}/rest/workspaces.json",
+            status=201,
+        )
+
+        response = geoserver.create_workspace(workspace)
+
+        assert response.status_code == 201
+
+
+@responses.activate
+def test_update_workspace(geoserver: GeoServerCloud) -> None:
+    workspace = "test_workspace"
+
+    with responses.RequestsMock() as rsps:
+        rsps.post(
+            url=f"{GEOSERVER_URL}/rest/workspaces.json",
+            status=409,
+        )
+        rsps.put(
+            url=f"{GEOSERVER_URL}/rest/workspaces/{workspace}.json",
+            status=200,
+        )
+
+        response = geoserver.create_workspace(workspace)
+
+        assert response.status_code == 200
+
+
+@responses.activate
+def test_delete_workspace(geoserver: GeoServerCloud) -> None:
+    workspace = "test_workspace"
+
+    with responses.RequestsMock() as rsps:
+        rsps.delete(
+            url=f"{GEOSERVER_URL}/rest/workspaces/{workspace}.json",
+            status=200,
+        )
+
+        response = geoserver.delete_workspace(workspace)
+
+        assert response.status_code == 200