Remove mocha in favor of jest

Author: arturovt

.gitignore

@@ -6,6 +6,7 @@ lt.log
 .nyc_output
 coverage
 .eslintcache
+.cache
 
 #docs
 /docs/index.html

jest.config.ts

@@ -0,0 +1,89 @@
+import * as path from 'path';
+import type { Config } from '@jest/types';
+
+const isCI = process.env.CI === 'true';
+
+const config: Config.InitialOptions = {
+  displayName: 'pushin',
+  rootDir: path.resolve('.'),
+  preset: 'ts-jest',
+
+  /**
+   * A set of global variables that need to be available in all test environments.
+   */
+  globals: {
+    'ts-jest': {
+      allowSyntheticDefaultImports: true,
+      tsconfig: '<rootDir>/tsconfig.spec.json',
+    },
+  },
+
+  transform: {
+    '^.+\\.spec.ts$': 'ts-jest',
+  },
+
+  /**
+   * By default, Jest runs all tests and produces all errors into the console upon completion.
+   * The bail config option can be used here to have Jest stop running tests after n failures.
+   * Setting bail to true is the same as setting bail to 1
+   */
+  bail: true,
+
+  /**
+   * Indicates whether the coverage information should be collected while executing the test.
+   * Because this retrofits all executed files with coverage collection statements,
+   * it may significantly slow down your tests.
+   */
+  collectCoverage: isCI,
+
+  /**
+   * An array of glob patterns indicating a set of files for which coverage
+   * information should be collected. If a file matches the specified glob pattern,
+   * coverage information will be collected for it even if no tests exist for this file and
+   * it's never required in the test suite.
+   */
+  collectCoverageFrom: ['test/*.spec.ts'],
+
+  /**
+   * A list of reporter names that Jest uses when writing coverage reports.
+   * Any istanbul reporter can be used.
+   * https://github.com/istanbuljs/istanbuljs/tree/master/packages/istanbul-reports/lib
+   */
+  coverageReporters: ['json', 'lcovonly', 'lcov', 'text', 'html'],
+
+  /**
+   * The glob patterns Jest uses to detect test files.
+   */
+  testMatch: ['<rootDir>/test/*.spec.ts'],
+
+  /**
+   * Indicates whether each individual test should be reported during the run.
+   * All errors will also still be shown on the bottom after execution.
+   */
+  verbose: true,
+
+  /**
+   * The directory where Jest should store its cached dependency information.
+   */
+  cacheDirectory: '<rootDir>/.cache',
+
+  /**
+   * By default, each test file gets its own independent module registry.
+   * Enabling resetModules goes a step further and resets the module registry before running
+   * each individual test. This is useful to isolate modules for every test so that local
+   * module state doesn't conflict between tests. This can be done programmatically
+   * using jest.resetModules().
+   */
+  resetModules: true,
+
+  /**
+   * Automatically clear mock calls and instances between every test.
+   * Equivalent to calling jest.clearAllMocks() between each test.
+   * This does not remove any mock implementation that may have been provided.
+   */
+  clearMocks: true,
+
+  testEnvironment: 'node',
+};
+
+export default config;