prepare for unit tests

.scrutinizer.yml

+filter:
+    excluded_paths: [tests/*]
+checks:
+    php:
+        code_rating: true
+        remove_extra_empty_lines: true
+        remove_php_closing_tag: true
+        remove_trailing_whitespace: true
+        fix_use_statements:
+            remove_unused: true
+            preserve_multiple: false
+            preserve_blanklines: true
+            order_alphabetically: true
+        fix_php_opening_tag: true
+        fix_linefeed: true
+        fix_line_ending: true
+        fix_identation_4spaces: true
+        fix_doc_comments: true
+tools:
+    external_code_coverage:
+        timeout: 600
+        runs: 3
+    php_analyzer: true
+    php_code_coverage: false
+    php_code_sniffer:
+        config:
+            standard: PSR2
+        filter:
+            paths: ['src']
+    php_loc:
+        enabled: true
+        excluded_dirs: [vendor, tests]
+    php_cpd:
+        enabled: true
+        excluded_dirs: [vendor, tests]
\ No newline at end of file

.travis.yml

+language: php
+
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - hhvm
+
+install:
+  - composer self-update
+  - composer global require "fxp/composer-asset-plugin:1.0.0"
+  - composer install
+
+before_script:
+  - travis_retry composer self-update
+  - travis_retry composer install --no-interaction --prefer-source --dev
+
+script:
+  - phpunit --coverage-text --coverage-clover=coverage.clover
+
+after_script:
+  - php vendor/bin/ocular code-coverage:upload --format=php-clover coverage.clover
\ No newline at end of file

phpunit.xml.dist

+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit bootstrap="./tests/functional/bootstrap.php"
+         backupGlobals="false"
+         backupStaticAttributes="false"
+         colors="true"
+         verbose="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         processIsolation="false"
+         stopOnFailure="false">
+    <testsuites>
+        <testsuite name="Yii2 SoftDelete Test Suite">
+            <directory>./tests/functional</directory>
+        </testsuite>
+    </testsuites>
+    <filter>
+        <whitelist>
+            <directory suffix=".php">./src/</directory>
+        </whitelist>
+    </filter>
+    <logging>
+        <log type="tap" target="build/report.tap"/>
+        <log type="junit" target="build/report.junit.xml"/>
+        <log type="coverage-html" target="build/coverage" charset="UTF-8" yui="true" highlight="true"/>
+        <log type="coverage-text" target="build/coverage.txt"/>
+        <log type="coverage-clover" target="build/logs/clover.xml"/>
+    </logging>
+</phpunit>
\ No newline at end of file