Add CLI command PHPUnit tests

tests/data/no-config/no-config.php

@@ -0,0 +1,22 @@
+<?php
+
+/**
+ * Plugin Name: No config
+ */
+
+function do_some_things() {
+
+	global $wpdb;
+
+	return $wpdb->get_results( 'SELECT * FROM ' . $wpdb->posts );
+}
+
+function do_some_other_stuff() {
+
+	echo 'Hello world';
+}
+
+function display_message() {
+
+	_e( 'Message', 'textdomain' );
+}

tests/data/with-config/with-config.php

@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * Plugin Name: With config
+ */
+
+function do_some_things() {
+
+	global $wpdb;
+
+	return $wpdb->get_results( 'SELECT * FROM ' . $wpdb->posts );
+}
+
+function do_some_other_stuff() {
+
+	echo 'Hello world';
+	echo 'Dlrow olleh';
+}
+
+function display_message() {
+
+	_e( 'Message', 'textdomain' );
+	func_to_ignore( 'yes' );
+}

tests/data/with-config/wp-l10n-validator.json

@@ -0,0 +1,10 @@
+{
+	"textdomain":"textdomain",
+	"config":"wordpress",
+	"ignored-functions": {
+		"func_to_ignore":true
+	},
+	"ignored-strings": [
+		"Dlrow olleh"
+	]
+}

tests/tests/cli.php

@@ -0,0 +1,108 @@
+<?php
+
+/**
+ * Test case for bash commands.
+ *
+ * @package WP_L10n_Validator
+ * @since 0.1.1
+ */
+
+/**
+ * Test that the bash commands function properly.
+ *
+ * @since 0.1.1
+ * @group dev
+ */
+class WP_L10n_Validator_CLI_Test extends PHPUnit_Framework_TestCase {
+
+	/**
+	 * Test default CLI usage.
+	 *
+	 * @since 0.1.1
+	 */
+	public function test_default_usage() {
+
+		$output = $this->run_command( 'wp-l10n-validator', '/no-config' );
+		$this->assertEquals( 0, strpos( $output, 'Usage:' ) );
+
+		$output = $this->run_command( 'wp-l10n-validator textdomain', '/no-config' );
+		$this->assertEquals( "/no-config.php#16: Non gettexted string 'Hello world'", $output );
+
+		$output = $this->run_command( 'wp-l10n-validator textdomain default', '/no-config' );
+		$this->assertEquals(
+			"/no-config.php#11 \$wpdb->get_results( 1 ): Non gettexted string 'SELECT * FROM'"
+			. "\n/no-config.php#16: Non gettexted string 'Hello world'"
+			. "\n/no-config.php#21 _e( 1 ): Non gettexted string 'Message'"
+			. "\n/no-config.php#21 _e( 2 ): Non gettexted string 'textdomain'"
+			, $output
+		);
+	}
+
+	/**
+	 * Test usage with JSON config.
+	 *
+	 * @since 0.1.1
+	 */
+	public function test_with_json_config() {
+
+		$output = $this->run_command( 'wp-l10n-validator', '/with-config' );
+		$this->assertEquals( "/with-config.php#16: Non gettexted string 'Hello world'", $output );
+	}
+
+	/**
+	 * Text ignores cache generation.
+	 *
+	 * @since 0.1.1
+	 */
+	public function test_ignores_cache_generation() {
+
+		$output = $this->run_command( 'wp-l10n-validator -c', '/with-config' );
+		$this->assertEmpty( $output );
+
+		$ignores_cache = dirname( __DIR__ ) . '/data/with-config/wp-l10n-validator-ignores.cache';
+
+		if ( ! ($content = @file_get_contents( $ignores_cache )) )
+			$this->fail( 'The ignores cache file was not generated, or could not be read.' );
+
+		unlink( $ignores_cache );
+
+		$this->assertEquals( array( '/with-config.php' => array( 'Hello world' => array( 16 => false ) ) ), json_decode( $content, true ) );
+	}
+
+	/**
+	 * Run a command and return the output.
+	 *
+	 * @since 0.1.1
+	 *
+	 * @param string $command The command to run.
+	 * @param string $working_dir The current working directory.
+	 *
+	 * @return string The result of the command.
+	 */
+	protected function run_command( $command, $working_dir ) {
+
+		$command = dirname( dirname( __DIR__ ) ) . '/bin/' . $command;
+		$working_dir = dirname( __DIR__ ) . '/data' . $working_dir;
+
+		$process = proc_open( $command, array( 2 => array( 'pipe', 'w' ) ), $pipes, $working_dir );
+
+		if ( is_resource( $process ) ) {
+
+			while ( ($proc_status = proc_get_status( $process )) && $proc_status['running'] ) {
+
+				usleep( 10000 );
+			}
+
+			$output = stream_get_contents( $pipes[2] );
+
+			fclose( $pipes[2] );
+			proc_close( $process );
+
+			@unlink( $working_dir . '/wp-l10n-validator.cache' );
+
+			return trim( $output );
+		}
+
+		$this->markTestSkipped( 'Unable to open the process with proc_open()' );
+	}
+}