first

.dockerignore

+# compiled output
+/dist
+/node_modules
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# OS
+.DS_Store
+
+# Tests
+/coverage
+/.nyc_output
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+/data
+/output
+/config.yaml
+
+.git*
+Dockerfile
+.dockerignore
+/tests

.eslintignore

+webpack.config.js
+dist/*
+build/*
+*.js

.eslintrc.js

+module.exports = {
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    project: 'tsconfig.json',
+    sourceType: 'module',
+  },
+  plugins: ['@typescript-eslint/eslint-plugin'],
+  extends: [
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended',
+  ],
+  root: true,
+  env: {
+    node: true,
+    jest: true,
+  },
+  ignorePatterns: ['.eslintrc.js'],
+  rules: {
+    '@typescript-eslint/interface-name-prefix': 'off',
+    '@typescript-eslint/explicit-function-return-type': 'off',
+    '@typescript-eslint/explicit-module-boundary-types': 'off',
+    '@typescript-eslint/no-explicit-any': 'off',
+  },
+};

.gitignore

+# compiled output
+/dist
+/node_modules
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# OS
+.DS_Store
+
+# Tests
+/coverage
+/.nyc_output
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+/data
+/output
+/config.yaml

.gitlab-ci.yml

+stages:
+  - install
+  - build
+  - deploy
+
+variables:
+  GIT_DEPTH: "1"
+
+npm_ci:
+  stage: install
+  tags:
+    - linux
+  script:
+    - npm ci
+  artifacts:
+    paths:
+      - node_modules
+
+.build_base:
+  stage: build
+  tags:
+    - linux
+  dependencies:
+    - npm_ci
+
+build:
+  extends:
+    - .build_base
+  script:
+    - npm run build
+  artifacts:
+    paths:
+      - dist/
+
+unit-test:
+  extends:
+    - .build_base
+  script:
+    - npm run test
+
+deploy_npm:
+  stage: deploy
+  dependencies:
+    - build
+  tags:
+    - linux
+  script:
+    - apt update;apt -y install coreutils
+    - echo $NPMRC | base64 --decode > ~/.npmrc
+    - npm publish . --access public && curl -X PUT "https://registry-direct.npmmirror.com/$(cat package.json | jq '.name' | sed 's/\"//g')/sync?sync_upstream=true" || true
+  only:
+    - master

.npmignore

+/install-npm.sh
+.git*
+/data
+/output
+/config.yaml
+.idea
+.dockerignore
+Dockerfile
+/src
+/coverage
+/tests
+/dist/tests

.prettierrc

+{
+  "singleQuote": true,
+  "trailingComma": "all"
+}
\ No newline at end of file

Dockerfile

+FROM node:lts-bullseye-slim as base
+LABEL Author="Nanahira <nanahira@momobako.com>"
+
+RUN apt update && apt -y install python3 build-essential && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /var/log/*
+WORKDIR /usr/src/app
+COPY ./package*.json ./
+
+FROM base as builder
+RUN npm ci && npm cache clean --force
+COPY . ./
+RUN npm run build
+
+FROM base
+ENV NODE_ENV production
+RUN npm ci && npm cache clean --force
+COPY --from=builder /usr/src/app/dist ./dist
+
+CMD [ "npm", "start" ]

LICENSE

+The MIT License (MIT)
+
+Copyright (c) 2021 Nanahira
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+

README.md

 # onedice.js
 
-OneDice in TypeScript.
\ No newline at end of file
+OneDice in TypeScript.
+
+Based on [OneDice](https://github.com/OlivOS-Team/onedice) standard.
+
+## Usage
+
+```ts
+import { OneDice } from 'onedice';
+
+const onedice = new OneDice()
+
+onedice.calculate('1d6')
+onedice.calculate('2d3+3d4')
+```
+
+### Change Random Generator
+
+```ts
+class MyOneDice extends OneDice {
+  random(min, max) {
+    return Math.floor(Math.random() * (max - min + 1)) + min;
+  }
+}
+
+### Extend operator
+
+const onedice = new OneDice()
+onedice.addOperator(new Operator('+', 1, (a, [o, b]) => a + b))
+```
\ No newline at end of file

index.ts

+export * from './src/onedice';
+export * from './src/operator';

package.json

+{
+  "name": "myproject",
+  "description": "myproject-desc",
+  "version": "1.0.0",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "scripts": {
+    "lint": "eslint --fix .",
+    "build": "rimraf dist && tsc",
+    "test": "jest --passWithNoTests",
+    "start": "node dist/index.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://code.mycard.moe/3rdeye/myproject.git"
+  },
+  "author": "Nanahira <nanahira@momobako.com>",
+  "license": "MIT",
+  "keywords": [],
+  "bugs": {
+    "url": "https://code.mycard.moe/3rdeye/myproject/issues"
+  },
+  "homepage": "https://code.mycard.moe/3rdeye/myproject",
+  "jest": {
+    "moduleFileExtensions": [
+      "js",
+      "json",
+      "ts"
+    ],
+    "rootDir": "tests",
+    "testRegex": ".*\\.spec\\.ts$",
+    "transform": {
+      "^.+\\.(t|j)s$": "ts-jest"
+    },
+    "collectCoverageFrom": [
+      "**/*.(t|j)s"
+    ],
+    "coverageDirectory": "../coverage",
+    "testEnvironment": "node"
+  },
+  "devDependencies": {
+    "@types/jest": "^28.1.7",
+    "@types/node": "^18.7.6",
+    "@typescript-eslint/eslint-plugin": "^4.33.0",
+    "@typescript-eslint/parser": "^4.33.0",
+    "eslint": "^7.32.0",
+    "eslint-config-prettier": "^8.5.0",
+    "eslint-plugin-prettier": "^3.4.1",
+    "jest": "^28.1.3",
+    "prettier": "^2.7.1",
+    "rimraf": "^3.0.2",
+    "ts-jest": "^28.0.8",
+    "typescript": "^4.7.4"
+  }
+}

src/onedice.ts

+import { Operator } from './operator';
+
+function range(n: number) {
+  const result: number[] = [];
+  for (let i = 0; i < n; i++) {
+    result.push(i);
+  }
+  return result;
+}
+
+function minBy<T>(array: T[], iteratee: (item: T) => number) {
+  let result: T = undefined;
+  if (array == null) {
+    return result;
+  }
+  let computed: number = undefined;
+  for (const value of array) {
+    const current = iteratee(value);
+    if (
+      current != null &&
+      (computed === undefined ? current === current : current < computed)
+    ) {
+      computed = current;
+      result = value;
+    }
+  }
+  return result;
+}
+
+function maxBy<T>(array: T[], iteratee: (item: T) => number) {
+  let result: T = undefined;
+  if (array == null) {
+    return result;
+  }
+  let computed: number = undefined;
+  for (const value of array) {
+    const current = iteratee(value);
+    if (
+      current != null &&
+      (computed === undefined ? current === current : current > computed)
+    ) {
+      computed = current;
+      result = value;
+    }
+  }
+  return result;
+}
+
+function sum(array: number[]) {
+  return array.reduce((a, b) => a + b, 0);
+}
+
+function lastValueOf<T>(arr: T[]) {
+  return arr[arr.length - 1];
+}
+
+export interface OneDiceConfig {
+  maxDiceCount?: number;
+  maxDiceFaces?: number;
+  valueDict?: { [key: string]: number };
+}
+
+export class OneDice {
+  random(min: number, max: number): number {
+    return Math.floor(Math.random() * (max - min + 1)) + min;
+  }
+
+  private splitThrow(
+    count: number,
+    picker: (tens: number[], comparer: (ten: number) => number) => number,
+  ) {
+    if (count == null) {
+      throw new Error('Count is required in pb.');
+    }
+    const first = this.random(0, 9);
+    const tens = range(count + 1).map(() => this.random(0, 9));
+    const tenFun = (ten: number) => (first === 0 && ten === 0 ? 10 : ten);
+    const pickTen = picker(tens, tenFun);
+    const combined = first + 10 * pickTen;
+    return combined === 0 ? 100 : combined;
+  }
+
+  private bonusThrow(count: number) {
+    return this.splitThrow(count, (tens, comparer) => minBy(tens, comparer)!);
+  }
+
+  private penaltyThrow(count: number) {
+    return this.splitThrow(count, (tens, comparer) => maxBy(tens, comparer)!);
+  }
+
+  private pbThrow(count: number, mode: 'p' | 'b') {
+    return mode === 'p' ? this.penaltyThrow(count) : this.bonusThrow(count);
+  }
+
+  readonly allOperatorChars = new Set<string>(['(', ')']);
+  readonly operatorMap = new Map<string, Operator>();
+
+  addOperator(operator: Operator) {
+    for (const char of operator.sym[0]) {
+      this.operatorMap.set(char, operator);
+    }
+    for (const sym of operator.sym) {
+      for (const char of sym) {
+        this.allOperatorChars.add(char);
+      }
+    }
+  }
+
+  constructor(private config: OneDiceConfig = {}) {
+    this.defaultOperators.forEach((op) => this.addOperator(op));
+  }
+
+  checkDiceCount(count: number) {
+    if (
+      count == null ||
+      count < 1 ||
+      (this.config.maxDiceCount && count > this.config.maxDiceCount)
+    ) {
+      throw new Error(`Invalid dice count: ${count}`);
+    }
+  }
+
+  checkDiceFaces(faces: number) {
+    if (
+      faces == null ||
+      faces < 1 ||
+      (this.config.maxDiceFaces && faces > this.config.maxDiceFaces)
+    ) {
+      throw new Error(`Invalid dice faces: ${faces}`);
+    }
+  }
+
+  defaultOperators: Operator[] = [
+    new Operator(['+'] as const, 2, (a, [o, b]) => {
+      if (a == null || b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      return a + b;
+    }),
+    new Operator(['-'] as const, 2, (a, [o, b]) => {
+      if (b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      a ??= 0;
+      return a - b;
+    }),
+    new Operator(['*x'] as const, 3, (a, [o, b]) => {
+      if (a == null || b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      return a * b;
+    }),
+    new Operator(['/\\'] as const, 3, (a, [o, b]) => {
+      if (a == null || b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      if (b === 0) {
+        throw new Error('Divided by zero.');
+      }
+      return Math.floor(a / b);
+    }),
+    new Operator(['%'] as const, 3, (a, [o, b]) => {
+      if (a == null || b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      if (b === 0) {
+        throw new Error('Modded by zero.');
+      }
+      return a % b;
+    }),
+    new Operator(['^'] as const, 4, (a, [o, b]) => {
+      if (a == null || b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      return Math.pow(a, b);
+    }),
+    new Operator(['&'] as const, 5, (a, [o, b]) => {
+      if (a == null || b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      return a & b;
+    }),
+    new Operator(['|'] as const, 5, (a, [o, b]) => {
+      if (a == null || b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      return a | b;
+    }),
+    new Operator(['~'] as const, 5, (a, [o, b]) => {
+      if (b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      if (a == null) {
+        return ~b;
+      }
+      return a ^ b;
+    }),
+    new Operator(['!'] as const, 7, (a) => {
+      if (a == null) {
+        throw new Error(`Invalid operands: ${a}!`);
+      }
+      let result = 1;
+      for (let i = 2; i <= a; i++) {
+        result *= i;
+      }
+      return result;
+    }),
+    new Operator(['>'] as const, 1, (a, [o, b]) => {
+      if (a == null || b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      return a > b ? 1 : 0;
+    }),
+    new Operator(['<'] as const, 1, (a, [o, b]) => {
+      if (a == null || b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      return a < b ? 1 : 0;
+    }),
+    new Operator(['='] as const, 1, (a, [o, b]) => {
+      if (a == null || b == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      return a === b ? 1 : 0;
+    }),
+    new Operator(['?', ':'] as const, 0, (a, [o, b], [v, c]) => {
+      if (a == null || b == null || c == null) {
+        throw new Error(`Invalid operands: ${a} ${o} ${b}`);
+      }
+      return a === 0 ? c : b;
+    }),
+    // dice
+    new Operator(
+      ['d', 'kq', '\x01\x02', '\x03'] as const,
+      6,
+      (count, [, faces], [kq, select], [pb, pbCount], [pool, min]) => {
+        count ??= 1;
+        faces ??= 6;
+        this.checkDiceCount(count);
+        this.checkDiceFaces(faces);
+        let results: number[];
+        if (kq && pb) {
+          throw new Error(
+            `Invalid operands: ${kq} and ${pb} cannot be used together`,
+          );
+        }
+        if (pb && count) {
+          results = range(count).map(() =>
+            this.pbThrow(pbCount, pb === '\x01' ? 'p' : 'b'),
+          );
+        } else {
+          results = range(count).map(() => this.random(1, faces));
+        }
+        if (pool && min) {
+          return results.filter((r) => r >= min).length;
+        }
+        if (kq && select) {
+          results.sort();
+          if (kq === 'k') {
+            results.reverse();
+          }
+          results = results.slice(0, select);
+        }
+        return sum(results);
+      },
+    ),
+    new Operator(['pb'] as const, 6, (__, [pb, pbCount]) => {
+      return this.pbThrow(pbCount, pb);
+    }),
+    new Operator(
+      ['a', 'k', 'q', 'm'] as const,
+      6,
+      (count, [, addLine], [, moreThan], [, lessThan], [, faces]) => {
+        faces ??= 10;
+        this.checkDiceCount(count);
+        this.checkDiceFaces(faces);
+        if (addLine == null || addLine < 2) {
+          throw new Error(`Invalid addLine: ${addLine}`);
+        }
+        moreThan ??= 8;
+        lessThan ??= 0xffffffff;
+        let totalResults: number[] = [];
+        let nextCount = count;
+        while (nextCount) {
+          const results = range(nextCount).map(() => this.random(1, faces));
+          totalResults = totalResults.concat(results);
+          nextCount = results.filter((r) => r >= addLine).length;
+        }
+        return totalResults.filter((r) => r >= moreThan && r <= lessThan)
+          .length;
+      },
+    ),
+    new Operator(['c', 'm'] as const, 6, (count, [, addLine], [, faces]) => {
+      if (addLine == null || addLine < 2) {
+        throw new Error(`Invalid addLine: ${addLine}`);
+      }
+      faces ??= 10;
+      this.checkDiceCount(count);
+      this.checkDiceFaces(faces);
+      const totalResults: number[][] = [];
+      let nextCount = count;
+      while (nextCount) {
+        const results = range(nextCount).map(() => this.random(1, faces));
+        totalResults.push(results);
+        nextCount = results.filter((r) => r >= addLine).length;
+      }
+      return totalResults.length - 1 + Math.max(...lastValueOf(totalResults));
+    }),
+    new Operator(['f'] as const, 6, (count) => {
+      count ??= 4;
+      if (count < 1) {
+        throw new Error(`Invalid count: ${count}`);
+      }
+      return sum(range(count).map(() => this.random(-1, 1)));
+    }),
+  ];
+
+  private parseChain(expr: string) {
+    if (this.config.valueDict) {
+      for (const [key, val] of Object.entries(this.config.valueDict)) {
+        const reg = new RegExp(`\\{${key}\\}`, 'g');
+        expr = expr.replaceAll(reg, val.toString());
+      }
+    }
+    const result: (string | number)[] = [];
+    for (let i = 0; i < expr.length; i++) {
+      const char = expr[i];
+      const topResult = lastValueOf(result);
+      if (char.match(/\d/)) {
+        if (typeof topResult === 'number') {
+          result[result.length - 1] = topResult * 10 + parseInt(char);
+        } else {
+          result.push(parseInt(char));
+        }
+      } else if (char.match(/\s/)) {
+        // do nothing and simply skip
+      } else if (this.allOperatorChars.has(char)) {
+        const previousChar = lastValueOf(result);
+        if (
+          typeof previousChar === 'string' &&
+          previousChar !== ')' &&
+          char !== '('
+        ) {
+          // for missing param
+          result.push(null);
+        }
+        const rollEscapes = {
+          p: '\x01',
+          b: '\x02',
+          a: '\x03',
+        };
+        if (rollEscapes[char]) {
+          // convert A(pb)B into 1d100pB
+          const dChars = new Set(['k', 'q', '\x01', '\x02', '\x03']);
+          let isDiceParam = false;
+          let bracketCount = 0;
+          for (let j = result.length - 1; j >= 0; j--) {
+            const prevChar = result[j];
+            if (prevChar === ')') {
+              ++bracketCount;
+              continue;
+            }
+            if (prevChar === '(') {
+              if (bracketCount === 0) {
+                break;
+              }
+              --bracketCount;
+              continue;
+            }
+            if (
+              bracketCount > 0 ||
+              typeof prevChar === 'number' ||
+              dChars.has(prevChar)
+            ) {
+              continue;
+            }
+            if (prevChar === 'd') {
+              isDiceParam = true;
+              break;
+            }
+            break;
+          }
+          if (isDiceParam) {
+            result.push(rollEscapes[char]);
+          } else {
+            result.push(char);
+          }
+        } else {
+          result.push(char);
+        }
+      } else {
+        throw new Error(`Invalid character: ${char}`);
+      }
+    }
+    const lastChar = lastValueOf(result);
+    if (typeof lastChar === 'string' && lastChar !== ')') {
+      // for missing param
+      result.push(null);
+    }
+    // console.log(result);
+    return result;
+  }
+
+  private isPop(currentChar: string, operatorStack: string[]) {
+    if (!operatorStack.length) {
+      return false;
+    }
+    let topOp: Operator;
+    for (let i = operatorStack.length - 1; i >= 0; i--) {
+      const op = operatorStack[i];
+      if (op === '(') {
+        break;
+      }
+      topOp = this.operatorMap.get(op);
+      if (topOp) {
+        break;
+      }
+    }
+    const currentOp = this.operatorMap.get(currentChar);
+    if (currentOp == null || topOp == null) {
+      return false;
+    }
+    return currentOp.priority <= topOp.priority;
+  }
+
+  private handleCalculation(numberStack: number[], operatorStack: string[]) {
+    // console.log('before', numberStack, operatorStack);
+    const numberMiniStack: number[] = [];
+    const operatorMiniStack: string[] = [];
+    while (
+      !(
+        operatorMiniStack.length &&
+        this.operatorMap.has(lastValueOf(operatorMiniStack))
+      )
+    ) {
+      const operatorChar = operatorStack.pop();
+      if (!operatorChar || operatorChar === '(') {
+        throw new Error(`Invalid operator: ${operatorChar}`);
+      }
+      operatorMiniStack.push(operatorChar);
+      numberMiniStack.push(numberStack.pop());
+    }
+    const firstValue = numberStack.pop();
+    operatorMiniStack.reverse();
+    numberMiniStack.reverse();
+    // console.log('calculate', firstValue, numberMiniStack, operatorMiniStack);
+    const operator = this.operatorMap.get(operatorMiniStack[0]);
+    const calculated = operator.doCalculation(
+      firstValue,
+      operatorMiniStack,
+      numberMiniStack,
+    );
+    // console.log('calculated', calculated);
+    numberStack.push(calculated);
+  }
+
+  calculate(expr: string) {
+    const chain = this.parseChain(expr);
+    const numberStack: number[] = [];
+    const operatorStack: string[] = [];
+    for (let i = 0; i < chain.length; i++) {
+      const segment = chain[i];
+      if (typeof segment === 'number') {
+        numberStack.push(segment);
+        continue;
+      }
+      if (segment === null) {
+        numberStack.push(segment as any);
+        continue;
+      }
+      if (!operatorStack.length) {
+        operatorStack.push(segment);
+        continue;
+      }
+      while (this.isPop(segment, operatorStack)) {
+        this.handleCalculation(numberStack, operatorStack);
+      }
+      if (segment === ')') {
+        while (lastValueOf(operatorStack) !== '(') {
+          this.handleCalculation(numberStack, operatorStack);
+        }
+        operatorStack.pop(); // pop out '('
+      } else {
+        operatorStack.push(segment);
+      }
+    }
+    while (operatorStack.length) {
+      this.handleCalculation(numberStack, operatorStack);
+    }
+    return numberStack[0];
+  }
+}

src/operator.ts

+type AnyChars<S> = S extends `${infer T}${infer U}` ? T | AnyChars<U> : never;
+
+type OperatorParam<O> = [AnyChars<O>, number];
+type OperatorRest<P extends readonly any[]> = P extends []
+  ? []
+  : P extends readonly [infer O, ...infer R]
+  ? [OperatorParam<O>, ...OperatorRest<R>]
+  : never;
+
+export class Operator<P extends readonly string[] = readonly string[]> {
+  constructor(
+    public sym: P,
+    public priority: number,
+    public calculate: (first: number, ...rest: OperatorRest<P>) => number,
+  ) {}
+
+  prepareParams(chars: string[], numbers: number[]): OperatorRest<P>;
+  prepareParams(chars: string[], numbers: number[]) {
+    const result = this.sym.map((s) => {
+      const pos = chars.findIndex((char) => s.includes(char));
+      if (pos === -1) {
+        return [];
+      }
+      return [chars[pos], numbers[pos]];
+    });
+    return result;
+  }
+
+  doCalculation(first: number, chars: string[], numbers: number[]) {
+    return this.calculate(first, ...this.prepareParams(chars, numbers));
+  }
+}

tests/sample.spec.ts

+import { OneDice } from '../src/onedice';
+
+class TestOneDice extends OneDice {
+  random(min: number, max: number): number {
+    return max;
+  }
+}
+
+describe('Sample test.', () => {
+  const onedice = new TestOneDice({
+    valueDict: {
+      foo: 50,
+      bar: 60,
+    },
+  });
+  it('should calculate', () => {
+    expect(onedice.calculate('1+1')).toBe(2);
+    expect(onedice.calculate('1+2*2')).toBe(5);
+    expect(onedice.calculate('1+2*(2+3)')).toBe(11);
+  });
+
+  it('should roll dice', () => {
+    expect(onedice.calculate('1d1')).toBe(1);
+    expect(onedice.calculate('1d2')).toBe(2);
+    expect(onedice.calculate('2d3')).toBe(6);
+    expect(onedice.calculate('2d3+1')).toBe(7);
+    expect(onedice.calculate('2d3+4d(5*2)')).toBe(46);
+    expect(onedice.calculate('d6')).toBe(6);
+    expect(onedice.calculate('d6+d6')).toBe(12);
+    expect(onedice.calculate('1d+d6+d6')).toBe(18);
+  });
+
+  it('should pass onedice tests', () => {
+    expect(onedice.calculate('((1-1>2)|(1-1<2))?(1+1):(1-2)')).toBe(2);
+    expect(onedice.calculate('7d5f')).toBe(35);
+  });
+});

tsconfig.json

+{
+	"compilerOptions": {
+		"outDir": "dist",
+		"module": "commonjs",
+		"target": "es2021",
+		"esModuleInterop": true,
+		"emitDecoratorMetadata": true,
+		"experimentalDecorators": true,
+		"declaration": true,
+		"sourceMap": true
+	},
+	"compileOnSave": true,
+	"allowJs": true,
+	"include": [
+		"*.ts",
+		"src/**/*.ts",
+		"test/**/*.ts",
+		"tests/**/*.ts"
+	]
+}