[Tests] add implementation test; run es-shim-api in postlint; use…

… `tape` runner

package.json

@@ -10,15 +10,14 @@
 	"main": "index.js",
 	"scripts": {
 		"prepublish": "safe-publish-latest",
-		"pretest": "npm run --silent lint && es-shim-api --bound",
+		"pretest": "npm run --silent lint",
 		"test": "npm run --silent tests-only",
 		"posttest": "npx aud --production",
-		"tests-only": "npm run --silent test:shimmed && npm run --silent test:module",
-		"test:shimmed": "node test/shimmed",
-		"test:module": "node test",
+		"tests-only": "tape 'test/**/*.js'",
 		"coverage": "covert test/*.js",
 		"coverage:quiet": "covert test/*.js --quiet",
-		"lint": "eslint ."
+		"lint": "eslint .",
+		"postlint": "es-shim-api --bound"
 	},
 	"repository": {
 		"type": "git",
@@ -46,6 +45,7 @@
 		"covert": "^1.1.1",
 		"eslint": "^7.8.1",
 		"functions-have-names": "^1.2.1",
+		"has-strict-mode": "^1.0.0",
 		"safe-publish-latest": "^1.1.4",
 		"tape": "^5.0.1"
 	},

test/implementation.js

@@ -0,0 +1,20 @@
+'use strict';
+
+var implementation = require('../implementation');
+var callBind = require('es-abstract/helpers/callBind');
+var test = require('tape');
+var hasStrictMode = require('has-strict-mode')();
+var runTests = require('./tests');
+
+test('as a function', function (t) {
+	t.test('bad array/this value', { skip: !hasStrictMode }, function (st) {
+		/* eslint no-useless-call: 0 */
+		st['throws'](function () { implementation.call(undefined); }, TypeError, 'undefined is not an object');
+		st['throws'](function () { implementation.call(null); }, TypeError, 'null is not an object');
+		st.end();
+	});
+
+	runTests(callBind(implementation, Object), t);
+
+	t.end();
+});