ci: import repro from #1823

examples/BUILD.bazel

@@ -99,6 +99,9 @@ example_integration_test(
 
 example_integration_test(
     name = "examples_jest",
+    npm_packages = {
+        "//packages/typescript:npm_package": "@bazel/typescript",
+    },
 )
 
 example_integration_test(

examples/jest/BUILD.bazel

@@ -1,4 +1,10 @@
-load(":jest.bzl", "jest_test")
+load("@npm_bazel_typescript//:index.bzl", "ts_library")
+load(":jest.bzl", "jest_test", "ts_jest_test")
+
+ts_library(
+    name = "lib",
+    srcs = ["lib.ts"],
+)
 
 jest_test(
     name = "test",
@@ -26,6 +32,17 @@ jest_test(
     ],
 )
 
+ts_jest_test(
+    name = "test_ts",
+    srcs = [
+        "lib.test.ts",
+    ],
+    jest_config = "jest.config.js",
+    deps = [
+        ":lib",
+    ],
+)
+
 # Just a dummy test so that we have a test target for //... on certain bazelci platforms with bazel_integration_test
 sh_test(
     name = "dummy_test",

examples/jest/jest.bzl

@@ -1,6 +1,7 @@
 "Shows how you might create a macro for the autogeneratd Jest rule"
 
 load("@npm//jest-cli:index.bzl", _jest_test = "jest_test")
+load("@npm_bazel_typescript//:index.bzl", "ts_library")
 
 def jest_test(name, srcs, deps, jest_config, **kwargs):
     "A macro around the autogenerated jest_test rule"
@@ -19,3 +20,35 @@ def jest_test(name, srcs, deps, jest_config, **kwargs):
         templated_args = templated_args,
         **kwargs
     )
+
+def ts_jest_test(name, srcs, jest_config, deps = [], data = [], **kwargs):
+    "A macro around the autogenerated jest_test rule"
+
+    ts_library(
+        name = "%s_ts" % name,
+        srcs = srcs,
+        data = data,
+        deps = deps + ["@npm//@types/jest"],
+    )
+    native.filegroup(
+        name = "%s_es5" % name,
+        srcs = [":%s_ts" % name],
+        output_group = "es5_sources",
+    )
+
+    args = [
+        "--no-cache",
+        "--no-watchman",
+        "--ci",
+    ]
+    args.extend(["--config", "$(rootpath %s)" % jest_config])
+
+    for src in srcs:
+        args.extend(["--runTestsByPath", "$(rootpath :%s_es5)" % name])
+
+    _jest_test(
+        name = name,
+        data = [jest_config, ":%s_es5" % name] + deps + data,
+        args = args,
+        **kwargs
+    )

examples/jest/lib.test.ts

@@ -0,0 +1,7 @@
+import {echo} from './lib';
+
+describe('echo', () => {
+  it('should return input', () => {
+    expect(echo('boom')).toContain('boom');
+  });
+});

examples/jest/lib.ts

@@ -0,0 +1,3 @@
+export function echo(a: string): string {
+  return a
+}

examples/jest/package.json

@@ -5,12 +5,15 @@
         "@babel/cli": "^7.6.0",
         "@babel/core": "^7.6.0",
         "@babel/preset-env": "^7.6.0",
+        "@bazel/typescript": "^1.6.0",
         "@jest/core": "24.7.1",
         "@jest/transform": "24.7.1",
+        "@types/jest": "^25.2.1",
         "babel-jest": "24.7.1",
         "babel-plugin-istanbul": "5.1.2",
         "jest-cli": "24.9.0",
-        "patch-package": "^6.2.0"
+        "patch-package": "^6.2.0",
+        "typescript": "^3.8.3"
     },
     "scripts": {
         "postinstall": "patch-package",

examples/jest/tsconfig.json

@@ -0,0 +1,26 @@
+{
+    "compilerOptions": {
+      "declaration": true,
+      "target": "es2018",
+      "module": "commonjs",
+      "lib": [
+        "ESNext.AsyncIterable",
+        "ES2018",
+        "DOM",
+        "ES6"
+      ],
+      "outDir": "dist",
+      "baseUrl": "./",
+      "paths": {
+        "jest_repro/*": [
+          "*",
+          "bazel-bin/*"
+        ]
+      },
+      "removeComments": true,
+      "strict": true,
+      "esModuleInterop": true,
+      "downlevelIteration": true,
+      "forceConsistentCasingInFileNames": true
+    }
+  }