add execution test for resolveJsonModule (#854)

* add execution test for resolveJsonModule

* minimum supported ts-loader version for resolveJsonModule 3.0.1

Author: johnnyreilly

test/execution-tests/3.0.1_resolveJsonModule/karma.conf.js

@@ -0,0 +1,47 @@
+/* eslint-disable no-var, strict */
+'use strict';
+var path = require('path');
+var webpack = require('webpack');
+var webpackConfig = require('./webpack.config.js');
+var reporterOptions = require('../../reporterOptions');
+
+module.exports = function(config) {
+  config.set({
+    browsers: [ 'ChromeHeadless' ],
+
+    files: [
+      // This loads all the tests
+      'main.js'
+    ],
+
+    port: 9876,
+
+    frameworks: [ 'jasmine' ],
+
+    logLevel: config.LOG_INFO, //config.LOG_DEBUG
+
+    preprocessors: {
+      'main.js': [ 'webpack', 'sourcemap' ]
+    },
+
+    webpack: {
+      devtool: 'inline-source-map',
+      mode: webpackConfig.mode,
+      module: webpackConfig.module,
+      resolve: webpackConfig.resolve,
+
+      // for test harness purposes only, you would not need this in a normal project
+      resolveLoader: webpackConfig.resolveLoader
+    },
+
+    webpackMiddleware: {
+      quiet: true,
+      stats: {
+        colors: true
+      }
+    },
+
+    // reporter options
+    mochaReporter: reporterOptions
+  });
+};

test/execution-tests/3.0.1_resolveJsonModule/main.js

@@ -0,0 +1,2 @@
+const testsContext = require.context('./', true, /\.tests\.ts(x?)$/);
+testsContext.keys().forEach(testsContext);

test/execution-tests/3.0.1_resolveJsonModule/package.json

@@ -0,0 +1,10 @@
+{
+  "name": "basic",
+  "license": "MIT",
+  "version": "1.0.0",
+  "main": "index.js",
+  "devDependencies": {
+    "@types/jasmine": "^2.5.35",
+    "jasmine-core": "^2.3.4"
+  }
+}

test/execution-tests/3.0.1_resolveJsonModule/src/app.ts

@@ -0,0 +1,8 @@
+import * as someJson from './some.json';
+
+export function getString() {
+    return someJson.looks;
+}
+export function getNumber() {
+    return someJson.json;
+}

test/execution-tests/3.0.1_resolveJsonModule/src/some.json

@@ -0,0 +1,4 @@
+{
+    "looks": "like",
+    "json": 5
+}

test/execution-tests/3.0.1_resolveJsonModule/test/app.tests.ts

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+import * as app from '../src/app';
+
+// We don't actually care about the result of the following operations; 
+// what we care about is typescript resolving json as modules 
+// allowing this code to compile without errors, hence this:
+// 		"noEmitOnError": true
+// in tsconfig.json
+describe("app", () => {
+  it("getString returns the expected value", () => {
+    expect(app.getString()).toBe("like");
+  });
+
+  it("getNumber returns the expected value", () => {
+    expect(app.getNumber()).toBe(5);
+  });
+});

test/execution-tests/3.0.1_resolveJsonModule/tsconfig.json

@@ -0,0 +1,6 @@
+{
+	"compilerOptions": {
+		"noEmitOnError": true,
+		"resolveJsonModule": true
+	}
+}

test/execution-tests/3.0.1_resolveJsonModule/webpack.config.js

@@ -0,0 +1,20 @@
+var path = require('path')
+
+module.exports = {
+    mode: 'development',
+    entry: './app.ts',
+    output: {
+        filename: 'bundle.js'
+    },
+    resolve: {
+        extensions: ['.ts', '.js']
+    },
+    module: {
+        rules: [
+            { test: /\.ts$/, loader: 'ts-loader' }
+        ]
+    }
+}
+
+// for test harness purposes only, you would not need this in a normal project
+module.exports.resolveLoader = { alias: { 'ts-loader': path.join(__dirname, "../../../index.js") } }

test/execution-tests/3.0.1_resolveJsonModule/yarn.lock

@@ -0,0 +1,11 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+"@types/jasmine@^2.5.35":
+  version "2.8.5"
+  resolved "https://registry.yarnpkg.com/@types/jasmine/-/jasmine-2.8.5.tgz#96e58872583fa80c7ea0dd29024b180d5e133678"
+
+jasmine-core@^2.3.4:
+  version "2.9.1"
+  resolved "https://registry.yarnpkg.com/jasmine-core/-/jasmine-core-2.9.1.tgz#b6bbc1d8e65250d56f5888461705ebeeeb88f22f"