Make sure root query that returns object with ID is cached

[stubailo]

This test kinda describes the situation:

  it('properly normalizes a query with variables', () => {
    const query = `
      query myQuery($intArg: Int, $floatArg: Float, $stringArg: String) {
        id,
        stringField(arg: $stringArg),
        numberField(intArg: $intArg, floatArg: $floatArg),
        nullField
      }
    `;

    const variables = {
      intArg: 5,
      floatArg: 3.14,
      stringArg: 'This is a string!',
    };

    const result = {
      id: 'abcd',
      stringField: 'Heyo',
      numberField: 5,
      nullField: null,
    };

    const normalized = writeQueryToStore({
      result,
      query,
      variables,
    });

    assertEqualSansDataId(normalized, {
      [result.id]: {
        id: 'abcd',
        nullField: null,
        'numberField({"intArg":5,"floatArg":3.14})': 5,
        'stringField({"arg":"This is a string!"})': 'Heyo',
      },
    });
  });

(This is a note so that I can focus on a different thing)

[stubailo]

Oh, actually this is basically a malformed query.. for this result to actually work, id would have to be a root query on the schema, which would be ridiculous.