Implement basic PhpSpec scenarios

.gitattributes

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+* text=auto
+
+/spec export-ignore
+/tests export-ignore
+/.gitattributes export-ignore
+/.gitignore export-ignore
+/.php_cs
+/.travis.yml export-ignore
+/phpstan.neon export-ignore
+/phpunit.xml.dist export-ignore

.gitignore

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+/vendor
+/.php_cs.cache
+/phpunit.xml

.php_cs

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+<?php
+
+return PhpCsFixer\Config::create()
+    ->setRules([
+        '@PSR2' => true,
+        'array_syntax' => ['syntax' => 'short'],
+        'binary_operator_spaces' => ['align_double_arrow' => false, 'align_equals' => false],
+        'blank_line_after_opening_tag' => true,
+        'blank_line_before_return' => true,
+        'cast_spaces' => true,
+        'concat_space' => ['spacing' => 'none'],
+        'declare_strict_types' => true,
+        'method_separation' => true,
+        'no_blank_lines_after_class_opening' => true,
+        'no_spaces_around_offset' => ['positions' => ['inside', 'outside']],
+        'no_unneeded_control_parentheses' => true,
+        'no_unused_imports' => true,
+        'phpdoc_align' => true,
+        'phpdoc_no_access' => true,
+        'phpdoc_separation' => true,
+        'pre_increment' => true,
+        'single_quote' => true,
+        'trim_array_spaces' => true,
+        'single_blank_line_before_namespace' => true
+    ])
+    ->setFinder(
+        PhpCsFixer\Finder::create()
+            ->in(__DIR__ . '/src')
+            ->in(__DIR__ . '/tests')
+            ->in(__DIR__ . '/spec')
+    )
+    ->setRiskyAllowed(true)
+    ->setUsingCache(false)
+;

.travis.yml

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+language: php
+
+matrix:
+  fast_finish: true
+
+  include:
+    - os: linux
+      php: '7.1'
+
+    - os: linux
+      php: '7.2'
+
+cache:
+  directories:
+    - $HOME/.composer/cache
+
+install:
+  - composer install --prefer-dist --no-interaction --ignore-platform-reqs
+
+script:
+  - composer check

CHANGELOG.md

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+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+
+## Types of changes
+ * **Added** for new features.
+ * **Changed** for changes in existing functionality.
+ * **Deprecated** for soon-to-be removed features.
+ * **Removed** for now removed features.
+ * **Fixed** for any bug fixes.
+ * **Security** in case of vulnerabilities.
+
+
+## Unreleased
+### Added
+ * first initial release

README.md

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+# PhpSpec extension for PHPStan
+
+[![Minimum PHP Version](https://img.shields.io/badge/php-%3E%3D%207.1-8892BF.svg)](https://php.net/)
+[![Latest Stable Version](https://img.shields.io/packagist/v/proget-hq/phpstan-phpspec.svg)](https://packagist.org/packages/proget-hq/phpstan-phpspec)
+[![Build Status](https://travis-ci.org/proget-hq/phpstan-phpspec.svg?branch=master)](https://travis-ci.org/proget-hq/phpstan-phpspec)
+[![Total Downloads](https://poser.pugx.org/proget-hq/phpstan-phpspec/downloads.svg)](https://packagist.org/packages/proget-hq/phpstan-phpspec)
+[![License](https://poser.pugx.org/proget-hq/phpstan-phpspec/license.svg)](https://packagist.org/packages/proget-hq/phpstan-phpspec)
+
+## What does it do?
+
+* Provides correct return type for `Collaborator` in spec methods
+ * `will*` methods
+* Provides correct methods for `ObjectBehavior`:
+ * `should*` methods
+ * `beConstructedWith`, `beConstructedThrough`, `beAnInstanceOf`
+
+## Compatibility
+
+| PHPStan version | PhpSpec extension version |
+| --------------- | ---------------------- |
+| 0.10.6          | 0.1.x                  |
+
+
+## Installation
+
+```sh
+composer require --dev proget-hq/phpstan-phpspec
+```
+
+## Configuration
+
+Put this into your `phpstan.neon` config:
+
+```neon
+includes:
+	- vendor/proget-hq/phpstan-phpspec/extension.neon
+parameters:
+    phpspecSourceFiles:
+        - 'src/'
+```
+
+## Limitations
+
+TBD.

composer.json

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+{
+    "name": "proget-hq/phpstan-phpspec",
+    "description": "PhpSpec extension for PHPStan",
+    "type": "library",
+    "require": {
+        "php": "^7.1",
+        "phpstan/phpstan": "^0.10.6",
+        "nikic/php-parser": "^4.1",
+        "phpspec/phpspec": "^5.1",
+        "symfony/finder": "^4.2"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^7.0",
+        "phpstan/phpstan-phpunit": "^0.10",
+        "friendsofphp/php-cs-fixer": "^2.13",
+        "symfony/var-dumper": "^4.2"
+    },
+    "autoload": {
+        "psr-4": {
+            "Proget\\PHPStan\\PhpSpec\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Proget\\Tests\\PHPStan\\PhpSpec\\": "tests/",
+            "spec\\Proget\\": "spec/Proget/"
+        }
+    },
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Arkadiusz Kondas",
+            "email": "[email protected]"
+        }
+    ],
+    "scripts": {
+        "check-cs": "php-cs-fixer fix --dry-run --diff",
+        "fix-cs": "php-cs-fixer fix",
+        "tests": "phpspec run",
+        "stan": "phpstan analyse -l max -c ./phpstan.neon ./src ./tests ./spec",
+        "check": [
+            "@check-cs",
+            "@stan",
+            "@tests"
+        ]
+    }
+}