diff --git a/.github/workflows/unit.yaml b/.github/workflows/unit.yaml
index 1788c49..1d360ef 100644
--- a/.github/workflows/unit.yaml
+++ b/.github/workflows/unit.yaml
@@ -11,6 +11,7 @@ on:
 env:
   EARTHENGINE_SERVICE_ACCOUNT: ${{ secrets.EARTHENGINE_SERVICE_ACCOUNT }}
   EARTHENGINE_PROJECT: ${{ secrets.EARTHENGINE_PROJECT }}
+  EARTHENGINE_TOKEN: ${{ secrets.EARTHENGINE_TOKEN }}
 
 jobs:
   lint:
diff --git a/pytest_gee/__init__.py b/pytest_gee/__init__.py
index b765043..ff60062 100644
--- a/pytest_gee/__init__.py
+++ b/pytest_gee/__init__.py
@@ -1,4 +1,5 @@
 """The init file of the package."""
+
 from __future__ import annotations
 
 import json
@@ -30,20 +31,27 @@ def init_ee_from_token():
     Note:
         As all init method of pytest-gee, this method will fallback to a regular ``ee.Initialize()`` if the environment variable is not found e.g. on your local computer.
     """
-    if "EARTHENGINE_TOKEN" in os.environ:
+    credential_folder_path = Path.home() / ".config" / "earthengine"
+    credential_file_path = credential_folder_path / "credentials"
+
+    if "EARTHENGINE_TOKEN" in os.environ and not credential_file_path.exists():
 
         # write the token to the appropriate folder
         ee_token = os.environ["EARTHENGINE_TOKEN"]
-        credential_folder_path = Path.home() / ".config" / "earthengine"
         credential_folder_path.mkdir(parents=True, exist_ok=True)
-        credential_file_path = credential_folder_path / "credentials"
         credential_file_path.write_text(ee_token)
 
-    project_id = os.environ.get("EARTHENGINE_PROJECT", ee.data._cloud_api_user_project)
-    if project_id is None:
-        raise ValueError(
-            "The project name cannot be detected."
-            "Please set the EARTHENGINE_PROJECT environment variable."
+    # Extract the project name from credentials
+    _credentials = json.loads(credential_file_path.read_text())
+    project_id = os.environ.get(
+        "EARTHENGINE_PROJECT", _credentials.get("project_id", _credentials.get("project", None))
+    )
+
+    if not project_id:
+        raise NameError(
+            "The project name cannot be detected. "
+            "Please set the EARTHENGINE_PROJECT environment variable. "
+            "Or authenticate using `earthengine set_project project_name`."
         )
 
     # if the user is in local development the authentication should
diff --git a/tests/conftest.py b/tests/conftest.py
index 9428ff7..4dc4bbd 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,5 +1,7 @@
 """Pytest session configuration."""
 
+import os
+
 import ee
 import pytest
 
@@ -8,7 +10,11 @@
 
 def pytest_configure():
     """Init GEE in the test environment."""
-    pytest_gee.init_ee_from_service_account()
+    if os.getenv("EARTHENGINE_SERVICE_ACCOUNT"):
+        pytest_gee.init_ee_from_service_account()
+
+    if os.getenv("EARTHENGINE_TOKEN"):
+        pytest_gee.init_ee_from_token()
 
 
 @pytest.fixture(scope="session")
diff --git a/tests/test_pytest_gee.py b/tests/test_pytest_gee.py
index af18aa8..7398535 100644
--- a/tests/test_pytest_gee.py
+++ b/tests/test_pytest_gee.py
@@ -1,5 +1,11 @@
 """Test the pytest_gee package."""
+
+import json
+import os
+from pathlib import Path
+
 import ee
+import pytest
 
 import pytest_gee
 
@@ -10,6 +16,58 @@ def test_hash_fixture(gee_hash):
     assert len(gee_hash) == 32
 
 
+@pytest.mark.skipif("EARTHENGINE_TOKEN" not in os.environ, reason="requires EARTHENGINE_TOKEN")
+def test_gee_init_from_token():
+    """Test the init_ee_from_token function."""
+    credentials_filepath = Path(ee.oauth.get_credentials_path())
+    existing = False
+
+    try:
+        # Reset credentials to force the initialization
+        # It can be initiated from different imports
+        ee.data._credentials = None
+
+        # Get the credentials path
+
+        # Remove the credentials file if it exists
+        if credentials_filepath.exists():
+            existing = True
+            credentials_filepath.rename(credentials_filepath.with_suffix(".json.bak"))
+
+        # Act: Earthengine token should be created
+        pytest_gee.init_ee_from_token()
+
+        assert credentials_filepath.exists()
+
+        # read the back up and remove the "project_id" key
+        credentials = json.loads(credentials_filepath.with_suffix(".json.bak").read_text())
+
+        ## 2. Assert when there's no a project associated
+        # remove the project_id key if it exists
+        credentials.pop("project_id", None)
+        credentials.pop("project", None)
+        if "EARTHENGINE_PROJECT" in os.environ:
+            del os.environ["EARTHENGINE_PROJECT"]
+
+        # write the new credentials
+        credentials_filepath.write_text(json.dumps(credentials))
+
+        with pytest.raises(NameError) as e:
+            pytest_gee.init_ee_from_token()
+
+        # Access the exception message via `e.value`
+        error_message = str(e.value)
+        assert "The project name cannot be detected" in error_message
+
+    finally:
+        # restore the file
+        if existing:
+            credentials_filepath.with_suffix(".json.bak").rename(credentials_filepath)
+
+        # check that no error is raised
+        pytest_gee.init_ee_from_token()
+
+
 def test_gee_init():
     """Test the init_ee_from_token function."""
     assert ee.Number(1).getInfo() == 1