Add tests with Peridot

.gitattributes

@@ -1,10 +1,8 @@
 # .gitattributes
 tests/ export-ignore
-.coveralls.yml export-ignore
 .gitattributes export-ignore
 .gitignore export-ignore
 .travis.yml export-ignore
-phpunit.xml.dist export-ignore
 
 # Auto detect text files and perform LF normalization
 * text=auto

.sniff.json

@@ -1,6 +1,7 @@
 {
     "paths": [
-        "sniff"
+        "sniff",
+        "tests/sniff.spec.php"
     ],
     "rules": {
         "@PSR2": true

.travis.yml

@@ -14,3 +14,4 @@ before_script:
 
 script:
   - ./sniff validate
+  - vendor/bin/peridot tests

README.md

@@ -87,6 +87,14 @@ Below is an example that enables PSR-2 + Symfony's coding standard, along with a
 }
 ```
 
+## Contributing
+
+To run the tests:
+
+```
+$ composer tests
+```
+
 ## Credits
 
 This project is only a small wrapper above [PHP-CS-Fixer](https://github.com/FriendsOfPHP/PHP-CS-Fixer), a huge thanks to the contributors of that tool.

composer.json

@@ -9,5 +9,12 @@
     "require": {
         "php": ">=5.6",
         "friendsofphp/php-cs-fixer": "^2.3"
+    },
+    "require-dev": {
+        "peridot-php/peridot": "^1.19",
+        "webmozart/assert": "^1.2"
+    },
+    "scripts": {
+        "tests": "peridot tests"
     }
 }

tests/invalid-path-1/.sniff.json

@@ -0,0 +1,8 @@
+{
+    "paths": [
+        ".."
+    ],
+    "rules": {
+        "@PSR2": true
+    }
+}

tests/invalid-path-2/.sniff.json

@@ -0,0 +1,8 @@
+{
+    "paths": [
+        "/tmp"
+    ],
+    "rules": {
+        "@PSR2": true
+    }
+}

tests/invalid-path-3/.sniff.json

@@ -0,0 +1,8 @@
+{
+    "paths": [
+        "./.."
+    ],
+    "rules": {
+        "@PSR2": true
+    }
+}

tests/invalid/.sniff.json

@@ -0,0 +1,8 @@
+{
+    "paths": [
+        "."
+    ],
+    "rules": {
+        "@PSR2": true
+    }
+}

tests/invalid/test.php

@@ -0,0 +1,3 @@
+<?php
+
+class foo {}

tests/multiple-paths/.sniff.json

@@ -0,0 +1,9 @@
+{
+    "paths": [
+        "test1.php",
+        "test2.php"
+    ],
+    "rules": {
+        "@PSR2": true
+    }
+}

tests/multiple-paths/test1.php

@@ -0,0 +1,3 @@
+<?php
+
+class foo {}

tests/multiple-paths/test2.php

@@ -0,0 +1,3 @@
+<?php
+
+class foo {}

tests/sniff.spec.php

@@ -0,0 +1,50 @@
+<?php
+
+use Webmozart\Assert\Assert;
+
+const CODE_INVALID_SYNTAX = 8;
+
+describe('the validate command', function () {
+    it('should exit with the exit code 0 when there are no errors', function () {
+        list($code) = sniff('valid');
+        Assert::eq($code, 0);
+    });
+    it('should exit with an exit code greater than 0 when there are errors', function () {
+        list($code, $output) = sniff('invalid');
+        Assert::eq($code, CODE_INVALID_SYNTAX);
+        Assert::contains($output, 'test.php');
+    });
+});
+
+describe('the configuration', function () {
+    it('should allow to analyze multiple paths', function () {
+        list($code, $output) = sniff('multiple-paths');
+        Assert::eq($code, CODE_INVALID_SYNTAX, $output);
+        Assert::contains($output, 'test1.php');
+        Assert::contains($output, 'test2.php');
+    });
+    it('should not accept paths outside the project directory', function () {
+        $testCases = [
+            'invalid-path-1',
+            'invalid-path-2',
+            'invalid-path-3',
+        ];
+        foreach ($testCases as $testCase) {
+            list($code, $output) = sniff($testCase);
+            Assert::greaterThan($code, 0);
+            Assert::contains($output, 'The .sniff.json configuration file contains an invalid path.');
+        }
+    });
+});
+
+it('should ignore php-cs-fixer config files', function () {
+    // TODO
+});
+
+function sniff($directory, $command = 'validate')
+{
+    chdir(__DIR__ . '/' . $directory);
+    exec("../../sniff $command 2>&1", $output, $code);
+    $output = implode(PHP_EOL, (array) $output);
+    return [$code, $output];
+}

tests/valid/.sniff.json

@@ -0,0 +1,8 @@
+{
+    "paths": [
+        "."
+    ],
+    "rules": {
+        "@PSR2": true
+    }
+}

tests/valid/test.php

@@ -0,0 +1,3 @@
+<?php
+
+echo 'test';