feat: move Expectations API out of external plugin

tests/Features/Expect/HigherOrder/properties.php

@@ -0,0 +1,75 @@
+<?php
+
+it('allows properties to be accessed from the value', function () {
+    expect(['foo' => 1])->foo->toBeInt()->toEqual(1);
+});
+
+it('can access multiple properties from the value', function () {
+    expect(['foo' => 'bar', 'hello' => 'world'])
+        ->foo->toBeString()->toEqual('bar')
+        ->hello->toBeString()->toEqual('world');
+});
+
+it('works with not', function () {
+    expect(['foo' => 'bar', 'hello' => 'world'])
+        ->foo->not->not->toEqual('bar')
+        ->foo->not->toEqual('world')->toEqual('bar')
+        ->hello->toEqual('world')->not()->toEqual('bar')->not->toBeNull;
+});
+
+it('works with each', function () {
+    expect(['numbers' => [1, 2, 3, 4], 'words' => ['hey', 'there']])
+        ->numbers->toEqual([1, 2, 3, 4])->each->toBeInt->toBeLessThan(5)
+        ->words->each(function ($word) {
+            $word->toBeString()->not->toBeInt();
+        });
+});
+
+it('works inside of each', function () {
+    expect(['books' => [['title' => 'Foo', 'cost' => 20], ['title' => 'Bar', 'cost' => 30]]])
+        ->books->each(function ($book) {
+            $book->title->not->toBeNull->cost->toBeGreaterThan(19);
+        });
+});
+
+it('works with sequence', function () {
+    expect(['books' => [['title' => 'Foo', 'cost' => 20], ['title' => 'Bar', 'cost' => 30]]])
+        ->books->sequence(
+            function ($book) { $book->title->toEqual('Foo')->cost->toEqual(20); },
+            function ($book) { $book->title->toEqual('Bar')->cost->toEqual(30); },
+        );
+});
+
+it('can compose complex expectations', function () {
+    expect(['foo' => 'bar', 'numbers' => [1, 2, 3, 4]])
+        ->toContain('bar')->toBeArray()
+        ->numbers->toEqual([1, 2, 3, 4])->not()->toEqual('bar')->each->toBeInt
+        ->foo->not->toEqual('world')->toEqual('bar')
+        ->numbers->toBeArray();
+});
+
+it('works with objects', function () {
+    expect(new HasProperties())
+        ->name->toEqual('foo')->not->toEqual('world')
+        ->posts->toHaveCount(2)->each(function ($post) { $post->is_published->toBeTrue(); })
+        ->posts->sequence(
+            function ($post) { $post->title->toEqual('Foo'); },
+            function ($post) { $post->title->toEqual('Bar'); },
+        );
+});
+
+class HasProperties
+{
+    public $name = 'foo';
+
+    public $posts = [
+        [
+            'is_published' => true,
+            'title'        => 'Foo',
+        ],
+        [
+            'is_published' => true,
+            'title'        => 'Bar',
+        ],
+    ];
+}