refactor: move jest around and add code coverage

.gitignore

@@ -14,3 +14,4 @@ node-*
 /plugins
 /lib/coder-cloud-agent
 .home
+coverage

ci/dev/postinstall.sh

@@ -5,6 +5,11 @@ main() {
   cd "$(dirname "$0")/../.."
   source ./ci/lib.sh
 
+  # This installs the dependencies needed for testing
+  cd test
+  yarn
+  cd ..
+
   cd lib/vscode
   yarn ${CI+--frozen-lockfile}
 

ci/dev/test.sh

@@ -3,12 +3,13 @@ set -euo pipefail
 
 main() {
   cd "$(dirname "$0")/../.."
-
   cd test/test-plugin
   make -s out/index.js
-  cd "$OLDPWD/test"
-  yarn
-  yarn test "$@"
+  # We must keep jest in a sub-directory. See ../../test/package.json for more
+  # information. We must also run it from the root otherwise coverage will not
+  # include our source files.
+  cd "$OLDPWD"
+  ./test/node_modules/.bin/jest "$@"
 }
 
 main "$@"

package.json

@@ -37,7 +37,6 @@
     "@types/http-proxy": "^1.17.4",
     "@types/js-yaml": "^3.12.3",
     "@types/node": "^12.12.7",
-    "@types/node-fetch": "^2.5.7",
     "@types/parcel-bundler": "^1.12.1",
     "@types/pem": "^1.9.5",
     "@types/proxy-from-env": "^1.0.1",
@@ -107,5 +106,28 @@
   ],
   "engines": {
     "node": ">= 12"
+  },
+  "jest": {
+    "transform": {
+      "^.+\\.ts$": "<rootDir>/test/node_modules/ts-jest"
+    },
+    "testEnvironment": "node",
+    "testPathIgnorePatterns": [
+      "/node_modules/",
+      "<rootDir>/lib/vscode",
+      "<rootDir>/out"
+    ],
+    "collectCoverage": true,
+    "collectCoverageFrom": [
+      "<rootDir>/src/**/*.ts"
+    ],
+    "coverageDirectory": "<rootDir>/coverage",
+    "coverageReporters": [
+      "json",
+      "text"
+    ],
+    "coveragePathIgnorePatterns": [
+      "out"
+    ]
   }
 }

test/jest.config.js

@@ -1,5 +0,0 @@
-module.exports = {
-  preset: "ts-jest",
-  testEnvironment: "node",
-  testPathIgnorePatterns: ["/node_modules/", "lib/vscode/"],
-}

test/package.json

@@ -1,14 +1,6 @@
 {
-  "name": "test",
-  "version": "1.0.0",
-  "description": "",
-  "main": "index.js",
-  "scripts": {
-    "test": "jest"
-  },
-  "keywords": [],
-  "author": "",
-  "license": "ISC",
+  "#": "We must put jest in a sub-directory otherwise VS Code somehow picks up",
+  "#": "the types and generates conflicts with mocha.",
   "devDependencies": {
     "@types/jest": "^26.0.20",
     "@types/node-fetch": "^2.5.8",
@@ -16,7 +8,6 @@
     "jest": "^26.6.3",
     "node-fetch": "^2.6.1",
     "supertest": "^6.1.1",
-    "ts-jest": "^26.4.4",
-    "typescript": "^4.1.3"
+    "ts-jest": "^26.4.4"
   }
 }

test/tsconfig.json

@@ -1,10 +1,4 @@
 {
   "extends": "../tsconfig.json",
-  "compilerOptions": {
-    "typeRoots": ["node_modules/@types", "../typings"],
-    "composite": true
-  },
-  "include": ["./**/*.ts"],
-  "exclude": ["node_modules/**"],
-  "types": ["jest"]
+  "include": ["./**/*.ts"]
 }

test/yarn.lock

@@ -3523,11 +3523,6 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@^4.1.3:
-  version "4.1.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.1.3.tgz#519d582bd94cba0cf8934c7d8e8467e473f53bb7"
-  integrity sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==
-
 union-value@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/union-value/-/union-value-1.0.1.tgz#0b6fe7b835aecda61c6ea4d4f02c14221e109847"

tsconfig.json

@@ -15,7 +15,7 @@
     "sourceMap": true,
     "tsBuildInfoFile": "./.cache/tsbuildinfo",
     "incremental": true,
-    "typeRoots": ["./node_modules/@types", "./typings"],
+    "typeRoots": ["./node_modules/@types", "./typings", "./test/node_modules/@types"],
     "downlevelIteration": true
   },
   "include": ["./src/**/*.ts"],

yarn.lock

@@ -1098,14 +1098,6 @@
   resolved "https://registry.yarnpkg.com/@types/minimist/-/minimist-1.2.0.tgz#69a23a3ad29caf0097f06eda59b361ee2f0639f6"
   integrity sha1-aaI6OtKcrwCX8G7aWbNh7i8GOfY=
 
-"@types/node-fetch@^2.5.7":
-  version "2.5.7"
-  resolved "https://registry.yarnpkg.com/@types/node-fetch/-/node-fetch-2.5.7.tgz#20a2afffa882ab04d44ca786449a276f9f6bbf3c"
-  integrity sha512-o2WVNf5UhWRkxlf6eq+jMZDu7kjgpgJfl4xVNlvryc95O/6F2ld8ztKX+qu+Rjyet93WAWm5LjeX9H5FGkODvw==
-  dependencies:
-    "@types/node" "*"
-    form-data "^3.0.0"
-
 "@types/node@*", "@types/node@^12.12.7":
   version "12.12.67"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-12.12.67.tgz#4f86badb292e822e3b13730a1f9713ed2377f789"
@@ -2164,7 +2156,7 @@ colorette@^1.2.1:
   resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.2.1.tgz#4d0b921325c14faf92633086a536db6e89564b1b"
   integrity sha512-puCDz0CzydiSYOrnXpz/PKd69zRrribezjtE9yd4zvytoRc8+RY/KJPvtPFKZS3E3wP6neGyMe0vOTlHO5L3Pw==
 
-combined-stream@^1.0.6, combined-stream@^1.0.8, combined-stream@~1.0.6:
+combined-stream@^1.0.6, combined-stream@~1.0.6:
   version "1.0.8"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.8.tgz#c3d45a8b34fd730631a110a8a2520682b31d5a7f"
   integrity sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==
@@ -3449,15 +3441,6 @@ forever-agent@~0.6.1:
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
   integrity sha1-+8cfDEGt6zf5bFd60e1C2P2sypE=
 
-form-data@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/form-data/-/form-data-3.0.0.tgz#31b7e39c85f1355b7139ee0c647cf0de7f83c682"
-  integrity sha512-CKMFDglpbMi6PyN+brwB9Q/GOw0eAnsrEZDgcsH5Krhz5Od/haKHAX0NmQfha2zPPz0JpWzA7GJHGSnvCRLWsg==
-  dependencies:
-    asynckit "^0.4.0"
-    combined-stream "^1.0.8"
-    mime-types "^2.1.12"
-
 form-data@~2.3.2:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.3.tgz#dcce52c05f644f298c6a7ab936bd724ceffbf3a6"