diff --git a/swh/graphql/tests/data.py b/swh/graphql/tests/data.py
--- a/swh/graphql/tests/data.py
+++ b/swh/graphql/tests/data.py
@@ -18,3 +18,7 @@
 
 def get_origins():
     return swh_model_data.ORIGINS
+
+
+def get_snapshots():
+    return swh_model_data.SNAPSHOTS
diff --git a/swh/graphql/tests/functional/test_snapshot_node.py b/swh/graphql/tests/functional/test_snapshot_node.py
new file mode 100644
--- /dev/null
+++ b/swh/graphql/tests/functional/test_snapshot_node.py
@@ -0,0 +1,57 @@
+# Copyright (C) 2022 The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+import pytest
+
+from ..data import get_snapshots
+from .utils import assert_missing_object, get_error_response, get_query_response
+
+
+@pytest.mark.parametrize("snapshot", get_snapshots())
+def test_get_snapshot(client, snapshot):
+    query_str = f"""
+    {{
+      snapshot(swhid: "{snapshot.swhid()}") {{
+        id
+        swhid
+        branches(first:5) {{
+          nodes {{
+            type
+            name {{
+              text
+            }}
+          }}
+        }}
+      }}
+    }}
+    """
+    data, _ = get_query_response(client, query_str)
+    assert data["snapshot"]["swhid"] == str(snapshot.swhid())
+    assert data["snapshot"]["id"] == snapshot.id.hex()
+    assert len(data["snapshot"]["branches"]["nodes"]) == len(snapshot.branches)
+
+
+def test_get_snapshot_missing_swhid(client):
+    query_str = """
+    {
+      snapshot(swhid: "swh:1:snp:0949d7a8c96347dba09be8d79085b8207f345412") {
+        swhid
+      }
+    }
+    """
+    assert_missing_object(client, query_str, "snapshot")
+
+
+def test_get_snapshot_invalid_swhid(client):
+    query_str = """
+    {
+      snapshot(swhid: "swh:1:snp:invalid") {
+        swhid
+      }
+    }
+    """
+    errors = get_error_response(client, query_str)
+    assert len(errors) == 1
+    assert "Invalid SWHID: invalid syntax" in errors[0]["message"]