ds4/spec/support/ds4rolls/executor.spec.ts

import { rollCheckMultipleDice, rollCheckSingleDie } from "../../../src/module/rolls/roll-executor";
import { RollProvider } from "../../../src/module/rolls/roll-provider";

import "jasmine";
import { RollResult, RollResultStatus } from "../../../src/module/rolls/roll-data";

function mockSingleThrow(value: number): RollProvider {
    const rollProvider = jasmine.createSpyObj("rollProvider", ["getNextRoll"]);
    rollProvider.getNextRoll = jasmine.createSpy("getNextRoll").and.returnValue(value);
    return rollProvider;
}

function mockMultipleThrows(values: Array<number>): RollProvider {
    const rollProvider = jasmine.createSpyObj("rollProvider", ["getNextRolls"]);
    rollProvider.getNextRolls = jasmine.createSpy("getNextRolls").and.returnValue(values);
    return rollProvider;
}

describe("DS4 Rolls with one die and no modifications.", () => {
    it("Should do a regular success roll.", () => {
        const rollProvider = mockSingleThrow(4);

        expect(rollCheckSingleDie(12, {}, rollProvider)).toEqual(new RollResult(4, RollResultStatus.SUCCESS, [4]));
    });

    it("Should do a single success roll on success upper edge case.", () => {
        const rollProvider = mockSingleThrow(4);

        expect(rollCheckSingleDie(4, {}, rollProvider)).toEqual(new RollResult(4, RollResultStatus.SUCCESS, [4]));
    });

    it("Should do a single failure roll on lower edge case.", () => {
        const rollProvider = mockSingleThrow(5);

        expect(rollCheckSingleDie(4, {}, rollProvider)).toEqual(new RollResult(0, RollResultStatus.FAILURE, [5]));
    });

    it("Should do a single failure roll on upper edge case '19'.", () => {
        const rollProvider = mockSingleThrow(19);

        expect(rollCheckSingleDie(4, {}, rollProvider)).toEqual(new RollResult(0, RollResultStatus.FAILURE, [19]));
    });

    it("Should do a single crit success roll on '1'.", () => {
        const rollProvider = mockSingleThrow(1);

        expect(rollCheckSingleDie(4, {}, rollProvider)).toEqual(
            new RollResult(4, RollResultStatus.CRITICAL_SUCCESS, [1]),
        );
    });

    it("Should do a single crit failure roll on '20'.", () => {
        const rollProvider = mockSingleThrow(20);

        expect(rollCheckSingleDie(4, {}, rollProvider)).toEqual(
            new RollResult(0, RollResultStatus.CRITICAL_FAILURE, [20]),
        );
    });
});

describe("DS4 Rolls with one die and slaying dice, first throw.", () => {
    it("Should do a crit success on `1`", () => {
        const rollProvider = mockSingleThrow(1);

        expect(rollCheckSingleDie(4, { useSlayingDice: true }, rollProvider)).toEqual(
            new RollResult(4, RollResultStatus.CRITICAL_SUCCESS, [1]),
        );
    });

    it("Should do a crit fail on `20`", () => {
        const rollProvider = mockSingleThrow(20);

        expect(rollCheckSingleDie(4, { useSlayingDice: true }, rollProvider)).toEqual(
            new RollResult(0, RollResultStatus.CRITICAL_FAILURE, [20]),
        );
    });
});

describe("DS4 Rolls with one die and slaying dice, followup throw.", () => {
    it("Should do a crit success on `1`", () => {
        const rollProvider = mockSingleThrow(1);

        expect(rollCheckSingleDie(4, { useSlayingDice: true, slayingDiceRepetition: true }, rollProvider)).toEqual(
            new RollResult(4, RollResultStatus.CRITICAL_SUCCESS, [1]),
        );
    });

    it("Should do a regular fail on `20`", () => {
        const rollProvider = mockSingleThrow(20);

        expect(rollCheckSingleDie(4, { useSlayingDice: true, slayingDiceRepetition: true }, rollProvider)).toEqual(
            new RollResult(0, RollResultStatus.FAILURE, [20]),
        );
    });

    it("Should do a regular success on `20` with a CTN of 20", () => {
        const rollProvider = mockSingleThrow(20);

        expect(rollCheckSingleDie(20, { useSlayingDice: true, slayingDiceRepetition: true }, rollProvider)).toEqual(
            new RollResult(20, RollResultStatus.SUCCESS, [20]),
        );
    });
});

describe("DS4 Rolls with one die and crit roll modifications.", () => {
    it("Should do a crit success on `1`.", () => {
        const rollProvider = mockSingleThrow(1);

        expect(rollCheckSingleDie(4, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(4, RollResultStatus.CRITICAL_SUCCESS, [1]),
        );
    });

    it("Should do a crit success on `maxCritSucc`.", () => {
        const rollProvider = mockSingleThrow(2);

        expect(rollCheckSingleDie(4, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(4, RollResultStatus.CRITICAL_SUCCESS, [2]),
        );
    });

    it("Should do a success on lower edge case `3`.", () => {
        const rollProvider = mockSingleThrow(3);

        expect(rollCheckSingleDie(4, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(3, RollResultStatus.SUCCESS, [3]),
        );
    });

    it("Should do a success on upper edge case `18`.", () => {
        const rollProvider = mockSingleThrow(18);

        expect(rollCheckSingleDie(4, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(0, RollResultStatus.FAILURE, [18]),
        );
    });

    it("Should do a crit fail on `minCritFail`.", () => {
        const rollProvider = mockSingleThrow(19);

        expect(rollCheckSingleDie(4, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(0, RollResultStatus.CRITICAL_FAILURE, [19]),
        );
    });

    it("Should do a crit fail on `20`", () => {
        const rollProvider = mockSingleThrow(20);

        expect(rollCheckSingleDie(4, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(0, RollResultStatus.CRITICAL_FAILURE, [20]),
        );
    });
});

describe("DS4 Rolls with multiple dice and no modifiers.", () => {
    it("Should do a crit fail on `20` for first roll.", () => {
        const rollProvider = mockMultipleThrows([20, 15, 6]);

        expect(rollCheckMultipleDice(48, {}, rollProvider)).toEqual(
            new RollResult(0, RollResultStatus.CRITICAL_FAILURE, [20, 15, 6]),
        );
    });

    it("Should succeed normally with all rolls crit successes.", () => {
        const rollProvider = mockMultipleThrows([1, 1, 1]);

        expect(rollCheckMultipleDice(48, {}, rollProvider)).toEqual(
            new RollResult(48, RollResultStatus.SUCCESS, [1, 1, 1]),
        );
    });

    it("Should succeed with the last roll not being suficient.", () => {
        const rollProvider = mockMultipleThrows([15, 15, 15]);

        expect(rollCheckMultipleDice(48, {}, rollProvider)).toEqual(
            new RollResult(30, RollResultStatus.SUCCESS, [15, 15, 15]),
        );
    });

    it("Should succeed with the last roll a crit success.", () => {
        const rollProvider = mockMultipleThrows([15, 15, 1]);

        expect(rollCheckMultipleDice(48, {}, rollProvider)).toEqual(
            new RollResult(38, RollResultStatus.SUCCESS, [15, 15, 1]),
        );
    });

    it("Should succeed with the last roll being 20 and one crit success.", () => {
        const rollProvider = mockMultipleThrows([15, 1, 20]);

        expect(rollCheckMultipleDice(48, {}, rollProvider)).toEqual(
            new RollResult(43, RollResultStatus.SUCCESS, [20, 15, 1]),
        );
    });

    it("Should properly maximize throw result with all dice success.", () => {
        const rollProvider = mockMultipleThrows([15, 4, 12]);

        expect(rollCheckMultipleDice(46, {}, rollProvider)).toEqual(
            new RollResult(31, RollResultStatus.SUCCESS, [15, 12, 4]),
        );
    });

    it("Should properly maximize throw result with one dice a failure.", () => {
        const rollProvider = mockMultipleThrows([15, 8, 20]);

        expect(rollCheckMultipleDice(46, {}, rollProvider)).toEqual(
            new RollResult(35, RollResultStatus.SUCCESS, [20, 15, 8]),
        );
    });

    it("Should maximize on 'lowest dice higher than last CTN and crit success thrown'-Edge case, no change required.", () => {
        const rollProvider = mockMultipleThrows([15, 1, 8]);

        expect(rollCheckMultipleDice(46, {}, rollProvider)).toEqual(
            new RollResult(35, RollResultStatus.SUCCESS, [1, 15, 8]),
        );
    });

    it("Should maximize on 2-dice 'lowest dice higher than last CTN and crit success thrown'-Edge case, no change required.", () => {
        const rollProvider = mockMultipleThrows([1, 8]);

        expect(rollCheckMultipleDice(24, {}, rollProvider)).toEqual(
            new RollResult(20, RollResultStatus.SUCCESS, [1, 8]),
        );
    });

    it("Should maximize on 2-dice 'lowest dice higher than last CTN and crit success thrown'-Edge case,  change required.", () => {
        const rollProvider = mockMultipleThrows([1, 19]);

        expect(rollCheckMultipleDice(38, {}, rollProvider)).toEqual(
            new RollResult(37, RollResultStatus.SUCCESS, [19, 1]),
        );
    });

    it("Should maximize correctly when swapping with more than one crit success", () => {
        const rollProvider = mockMultipleThrows([1, 1, 15]);

        expect(rollCheckMultipleDice(48, {}, rollProvider)).toEqual(
            new RollResult(43, RollResultStatus.SUCCESS, [1, 15, 1]),
        );
    });
});

describe("DS4 Rolls with multiple dice and min/max modifiers.", () => {
    it("Should do a crit fail on `19` for first roll.", () => {
        const rollProvider = mockMultipleThrows([19, 15, 6]);

        expect(rollCheckMultipleDice(48, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(0, RollResultStatus.CRITICAL_FAILURE, [19, 15, 6]),
        );
    });

    it("Should succeed with all rolls crit successes (1 and 2).", () => {
        const rollProvider = mockMultipleThrows([2, 1, 2]);

        expect(rollCheckMultipleDice(48, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(48, RollResultStatus.SUCCESS, [2, 2, 1]),
        );
    });

    it("Should succeed with the last roll not being sufficient.", () => {
        const rollProvider = mockMultipleThrows([15, 15, 15]);

        expect(rollCheckMultipleDice(48, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(30, RollResultStatus.SUCCESS, [15, 15, 15]),
        );
    });

    it("Should succeed with the last roll a crit success `2`.", () => {
        const rollProvider = mockMultipleThrows([15, 15, 2]);

        expect(rollCheckMultipleDice(48, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(38, RollResultStatus.SUCCESS, [15, 15, 2]),
        );
    });

    it("Should succeed with the last roll being `20` and one crit success '2'.", () => {
        const rollProvider = mockMultipleThrows([15, 2, 20]);

        expect(rollCheckMultipleDice(48, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(43, RollResultStatus.SUCCESS, [20, 15, 2]),
        );
    });

    it("Should succeed with the last roll being `19` and one crit success '2'.", () => {
        const rollProvider = mockMultipleThrows([15, 2, 19]);

        expect(rollCheckMultipleDice(48, { maxCritSucc: 2, minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(42, RollResultStatus.SUCCESS, [19, 15, 2]),
        );
    });
});

describe("DS4 Rolls with multiple dice and fail modifiers.", () => {
    it("Should do a crit fail on `19` for first roll.", () => {
        const rollProvider = mockMultipleThrows([19, 15, 6]);

        expect(rollCheckMultipleDice(48, { minCritFail: 19 }, rollProvider)).toEqual(
            new RollResult(0, RollResultStatus.CRITICAL_FAILURE, [19, 15, 6]),
        );
    });
});

describe("DS4 Rolls with multiple dice and success modifiers.", () => {
    it("Should succeed with all rolls crit successes (1 and 2).", () => {
        const rollProvider = mockMultipleThrows([2, 1, 2]);

        expect(rollCheckMultipleDice(48, { maxCritSucc: 2 }, rollProvider)).toEqual(
            new RollResult(48, RollResultStatus.SUCCESS, [2, 2, 1]),
        );
    });
});

describe("DS4 Rolls with multiple and slaying dice, first throw", () => {
    it("Should fail with the first roll being a `20`", () => {
        const rollProvider = mockMultipleThrows([20, 2, 19]);

        expect(rollCheckMultipleDice(48, { useSlayingDice: true }, rollProvider)).toEqual(
            new RollResult(0, RollResultStatus.CRITICAL_FAILURE, [20, 2, 19]),
        );
    });

    it("Should issue a critical success, even with resorting dice", () => {
        const rollProvider = mockMultipleThrows([2, 19, 15]);

        expect(rollCheckMultipleDice(48, { useSlayingDice: true, maxCritSucc: 2 }, rollProvider)).toEqual(
            new RollResult(42, RollResultStatus.CRITICAL_SUCCESS, [19, 15, 2]),
        );
    });
});

describe("DS4 Rolls with multiple and slaying dice, recurrent throw", () => {
    it("Should regularly succeed with the first roll being a `20`", () => {
        const rollProvider = mockMultipleThrows([20, 2, 19]);

        expect(rollCheckMultipleDice(48, { useSlayingDice: true, slayingDiceRepetition: true }, rollProvider)).toEqual(
            new RollResult(41, RollResultStatus.SUCCESS, [20, 19, 2]),
        );
    });
});