Move PHPUnit tests to tests/unit, to distinguish between upcoming integration tests

Later, there should be integration tests,
so prepare a separate space for them.

Author: kienstra

phpcs.xml

@@ -12,7 +12,6 @@
     <file>.</file>
     <exclude-pattern>*/node_modules/*</exclude-pattern>
     <exclude-pattern>*/vendor/*</exclude-pattern>
-    <exclude-pattern>*/tests/*</exclude-pattern>
     <exclude-pattern>*/package/*</exclude-pattern>
     <exclude-pattern>*.js</exclude-pattern>
     <exclude-pattern>*.css</exclude-pattern>

phpunit.xml.dist

@@ -10,8 +10,12 @@
 
 	<testsuites>
 		<testsuite name="unit">
-			<directory suffix=".php">./tests/php/helpers/</directory>
-			<directory prefix="test-class-" suffix=".php">./tests/</directory>
+			<directory suffix=".php">./tests/php/unit/helpers/</directory>
+			<directory prefix="test-" suffix=".php">./tests/php/unit/</directory>
+		</testsuite>
+
+		<testsuite name="integration">
+			<directory suffix=".php">./tests/php/integration/</directory>
 		</testsuite>
 	</testsuites>
 

tests/class-test-the-plugin.php

@@ -43,8 +43,8 @@ public function setUp() {
 		parent::setUp();
 		Monkey\setUp();
 		$this->instance                 = new Admin\Import();
-		$this->import_file_valid_json   = dirname( dirname( __DIR__ ) ) . '/fixtures/mock-import-valid-format.txt';
-		$this->import_file_invalid_json = dirname( dirname( __DIR__ ) ) . '/fixtures/mock-import-invalid-format.txt';
+		$this->import_file_valid_json   = dirname( __DIR__ ) . '/fixtures/mock-import-valid-format.txt';
+		$this->import_file_invalid_json = dirname( __DIR__ ) . '/fixtures/mock-import-invalid-format.txt';
 		$this->instance->set_plugin( block_lab() );
 	}