message: Add jest-canvas-mock
diff: "flow-parser": "^0.57.3",
  "glob": "^5.0.14",
  "jest": "^24.9.0",
  + "jest-canvas-mock": "^2.2.0",
  "lolex": "^5.1.2",
  "matrix-mock-request": "^1.2.3",
  "matrix-react-test-utils": "^0.2.2",
  "testMatch": [
  "<rootDir>/test/**/*-test.js"
  ],
  + "setupFiles": ["jest-canvas-mock"],
  "setupFilesAfterEnv": [
  "<rootDir>/test/setupTests.js"
  ],
  