del = buildModelFromSpec(simpleModelSpec);
    const root = constructMultiDimensionalView(model, model.bounds);
    const values = getNodeValues_(root, path);

    // 1/5 of the first slice and 2/5 of the second slice is in the expectation
    // ranges, so total CPU is 0.2 * 30 + 0.4 * 20.
    // Total duration of Scroll Response expectation is 60 + 20, since the two
    // expectation ranges are disjoint.
    assert.closeTo(getCpuUsage_(values),
        (0.2 * 30 + 0.4 * 20) / (60 + 20), 1e-7);
    assert