@benev/slate/x/watch/zip/action.test.js

frontend web stuff

import { expect } from "cynic";
import { ZipAction } from "./action.js";
import { StateTree } from "../state_tree.js";
export default {
    "actions work": async () => {
        let memory = 0;
        const blueprint = ZipAction.blueprint();
        const testActions = ZipAction.prepBlueprint((state) => state.test);
        const tree = new StateTree({ test: { count: 0 } }, () => { memory = tree.state.test.count; });
        const subgroup = testActions(action => ({
            double: action(test => () => {
                test.count *= 2;
            }),
        }));
        const counting_specs = blueprint({
            ...subgroup,
            wrapper: {
                add: state => (n) => {
                    state.test.count += n;
                },
                reset: (_state, setRoot) => () => {
                    setRoot({ test: { count: 0 } });
                },
            },
        });
        const counting = ZipAction.actualize(tree, counting_specs);
        expect(tree.state.test.count).equals(0);
        expect(memory).equals(0);
        counting.wrapper.add(1);
        counting.wrapper.add(2);
        expect(tree.state.test.count).equals(3);
        expect(memory).equals(3);
        counting.double();
        expect(tree.state.test.count).equals(6);
        expect(memory).equals(6);
        counting.wrapper.reset();
        expect(tree.state.test.count).equals(0);
        expect(memory).equals(0);
    },
};
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