Add a unit test file for highlight mutations

Contains a first test for creation

server/notes/tests/test_highlights.py

@@ -0,0 +1,109 @@
+import pytest
+from books.factories import ContentBlockFactory, ModuleFactory
+from books.models.contentblock import ContentBlock
+from graphql_relay import to_global_id
+
+pytestmark = pytest.mark.django_db
+
+mutation = """
+  fragment HighlightParts on HighlightNode {
+    id
+    contentIndex
+    paragraphIndex
+    selectionLength
+    contentUuid
+    startPosition
+    color
+    note {
+      text
+    }
+    text
+    page {
+      ... on Node {
+        id
+      }
+    }
+  }
+
+
+  mutation AddHighlight($input: AddHighlightInput!) {
+    addHighlight(input: $input) {
+      __typename
+      highlight {
+        ...HighlightParts
+      }
+    }
+  }
+"""
+
+content_block_query = """
+fragment HighlightLegacyParts on HighlightNode {
+  id
+  contentIndex
+  paragraphIndex
+  selectionLength
+  contentUuid
+  startPosition
+  color
+  note {
+    text
+  }
+  text
+  page {
+    ... on Node {
+      id
+    }
+  }
+}
+
+
+    query ContentBlockQuery($id: ID!) {
+        contentBlock(id: $id) {
+            id
+            highlights {
+                ...HighlightLegacyParts
+            }
+        }
+    }
+"""
+
+
+@pytest.mark.usefixtures("create_users")
+class TestAddHighlight:
+    def test_add_highlight(self, teacher, get_client):
+        module = ModuleFactory()
+        content_block = ContentBlockFactory(module=module)
+        client = get_client(teacher)
+        # content_block = ContentBlock.objects.create(slug="slug", title="title")
+        cid = to_global_id("ContentBlockNode", content_block.id)
+        result = client.execute(
+            mutation,
+            variables={
+                "input": {
+                    "highlight": {
+                        "page": cid,
+                        "contentIndex": 0,
+                        "contentUuid": "427ee0b7-aee0-424e-8cb6-35ac12a8fb66",
+                        "paragraphIndex": 0,
+                        "text": "Hallo",
+                        "startPosition": 0,
+                        "selectionLength": 10,
+                        "color": "alpha",
+                    }
+                }
+            },
+        )
+        assert result.errors is None
+
+        highlight = result.data.get("addHighlight").get("highlight")
+        assert highlight.get("text") == "Hallo"
+        assert highlight.get("page").get("id") == cid
+
+        client = get_client(teacher)
+        result = client.execute(content_block_query, variables={"id": cid})
+        assert result.errors is None
+        content_block = result.data.get("contentBlock")
+        assert content_block.get("id") == cid
+        print(content_block.get("highlights")[0])
+        assert content_block.get("highlights")[0].get("color") == "alpha"
+        assert content_block.get("highlights")[0].get("page").get("id") == cid