test: initial conversion of test to typescript

package.json

@@ -43,16 +43,19 @@
 		"build:js": "rollup -c",
 		"build:types": "tsc -p tsconfig.typedef.json",
 		"size": "npm run build && terser --compress --mangle -- ./dist/umd.js | gzip -c | wc -c",
-		"test": "npm run build && tape test/*.js && jsmd readme.md && npm run test:typescript",
-		"test:types": "dtslint --localTs node_modules/typescript/lib --expectOnly test/types",
-		"test:typescript": "tsc --noEmit test/typescript.ts && ts-node test/typescript.ts"
+		"test": "npm run test:js && npm run test:types && npm run test:jsmd",
+		"test:js": "ts-node -C typescript -P test/tsconfig.json -r tsconfig-paths/register node_modules/tape/bin/tape test/*.ts",
+		"pretest:jsmd": "npm run build:js",
+		"test:jsmd": "jsmd readme.md",
+		"test:types": "dtslint --localTs node_modules/typescript/lib --expectOnly test/types"
 	},
 	"dependencies": {},
 	"devDependencies": {
 		"@rollup/plugin-commonjs": "^16.0.0",
 		"@rollup/plugin-node-resolve": "^10.0.0",
 		"@rollup/plugin-typescript": "^8.1.0",
 		"@types/node": "^8.10.54",
+		"@types/tape": "^4.13.0",
 		"dtslint": "^4.0.6",
 		"is-mergeable-object": "1.1.0",
 		"is-plain-obj": "^3.0.0",
@@ -61,6 +64,7 @@
 		"tape": "^5.0.1",
 		"terser": "^5.5.1",
 		"ts-node": "^9.0.0",
+		"tsconfig-paths": "^3.9.0",
 		"typescript": "^4.1.2"
 	},
 	"engines": {

test/custom-array-merge.js → test/custom-array-merge.ts

@@ -1,5 +1,5 @@
-var merge = require('../')
-var test = require('tape')
+import { deepmerge as merge } from "deepmerge"
+import test from "tape"
 
 test('custom merge array', function(t) {
 	var mergeFunctionCalled = false

test/custom-is-mergeable-object.js → test/custom-is-mergeable-object.ts

@@ -1,5 +1,5 @@
-var merge = require('../')
-var test = require('tape')
+import { deepmerge as merge } from "deepmerge"
+import test from "tape"
 
 test('isMergeable function copying object over object', function(t) {
 	var src = { key: { isMergeable: false }, baz: 'yes' }

test/merge-all.js → test/merge-all.ts

@@ -1,5 +1,5 @@
-var merge = require('../')
-var test = require('tape')
+import { deepmerge as merge } from "deepmerge"
+import test from "tape"
 
 test('throw error if first argument is not an array', function(t) {
 	t.throws(merge.all.bind(null, { example: true }, { another: '2' }), Error)

test/merge-plain-objects.js → test/merge-plain-objects.ts

@@ -1,34 +1,34 @@
-var merge = require('../')
-var test = require('tape')
-
-test('plain objects are merged by default', function(t) {
-	const input = {
-		newObject: new Object(),
-		objectLiteral: { a: 123 }
-	}
-	const output = merge({}, input)
-
-	t.deepEqual(output.newObject, input.newObject)
-	t.notEqual(output.newObject, input.newObject)
-	t.deepEqual(output.objectLiteral, input.objectLiteral)
-	t.notEqual(output.objectLiteral, input.objectLiteral)
-
-	t.end()
-})
-
-test('instantiated objects are copied by reference', function(t) {
-	const input = {
-		date: new Date(),
-		error: new Error(),
-		regex: /regex/
-	}
-	const output = merge({}, input)
-
-	t.equal(output.date, input.date)
-	t.equal(output.error, input.error)
-	t.equal(output.regex, input.regex)
-
-	t.end()
-})
-
-
+import { deepmerge as merge } from "deepmerge"
+import test from "tape"
+
+test('plain objects are merged by default', function(t) {
+	const input = {
+		newObject: new Object(),
+		objectLiteral: { a: 123 }
+	}
+	const output = merge({}, input)
+
+	t.deepEqual(output.newObject, input.newObject)
+	t.notEqual(output.newObject, input.newObject)
+	t.deepEqual(output.objectLiteral, input.objectLiteral)
+	t.notEqual(output.objectLiteral, input.objectLiteral)
+
+	t.end()
+})
+
+test('instantiated objects are copied by reference', function(t) {
+	const input = {
+		date: new Date(),
+		error: new Error(),
+		regex: /regex/
+	}
+	const output = merge({}, input)
+
+	t.equal(output.date, input.date)
+	t.equal(output.error, input.error)
+	t.equal(output.regex, input.regex)
+
+	t.end()
+})
+
+

test/merge.js → test/merge.ts

@@ -1,5 +1,5 @@
-var merge = require('../')
-var test = require('tape')
+import { deepmerge as merge } from "deepmerge"
+import test from "tape"
 
 test('add keys in target that do not exist at the root', function(t) {
 	var src = { key1: 'value1', key2: 'value2' }

test/prototype-poisoning.js → test/prototype-poisoning.ts

@@ -1,6 +1,6 @@
-var merge = require('../')
-var test = require('tape')
-var isMergeableObject = require('is-mergeable-object')
+import { deepmerge as merge } from "deepmerge"
+import test from "tape"
+import isPlainObj from "is-plain-obj"
 
 test('merging objects with own __proto__', function(t) {
 	var user = {}
@@ -51,7 +51,7 @@ test('merging strings works with a custom string merge', function(t) {
 	}
 
 	function mergeable(target) {
-		return isMergeableObject(target) || (typeof target === 'string' && target.length > 1)
+		return isPlainObj(target) || (typeof target === 'string' && target.length > 1)
 	}
 
 	t.equal('A. Ham', merge(target, source, { customMerge: customMerge, isMergeable: mergeable }).name)