Add tests on i18n classes (#4756)

3 files changed, 15 insertions, 10 deletions

diff --git a/cli/i18n/I18nCompletionValidator.php b/cli/i18n/I18nCompletionValidator.php
index ee4ab9f78..000629f8d 100644
--- a/cli/i18n/I18nCompletionValidator.php
+++ b/cli/i18n/I18nCompletionValidator.php
@@ -16,6 +16,12 @@ class I18nCompletionValidator implements I18nValidatorInterface {
 	}
 
 	public function displayReport() {
+		if ($this->passEntries > $this->totalEntries) {
+			throw new \RuntimeException('The number of translated strings cannot be higher than the number of strings');
+		}
+		if ($this->totalEntries === 0) {
+			return 'There is no data.' . PHP_EOL;
+		}
 		return sprintf('Translation is %5.1f%% complete.', $this->passEntries / $this->totalEntries * 100) . PHP_EOL;
 	}
 
@@ -27,7 +33,7 @@ class I18nCompletionValidator implements I18nValidatorInterface {
 		foreach ($this->reference as $file => $data) {
 			foreach ($data as $refKey => $refValue) {
 				$this->totalEntries++;
-				if (!array_key_exists($refKey, $this->language[$file])) {
+				if (!array_key_exists($file, $this->language) || !array_key_exists($refKey, $this->language[$file])) {
 					$this->result .= "Missing key $refKey" . PHP_EOL;
 					continue;
 				}
diff --git a/cli/i18n/I18nFile.php b/cli/i18n/I18nFile.php
index a7045459c..fca31d662 100644
--- a/cli/i18n/I18nFile.php
+++ b/cli/i18n/I18nFile.php
@@ -3,16 +3,9 @@
 require_once __DIR__ . '/I18nValue.php';
 
 class I18nFile {
-
-	private $i18nPath;
-
-	public function __construct() {
-		$this->i18nPath = __DIR__ . '/../../app/i18n';
-	}
-
 	public function load() {
 		$i18n = array();
-		$dirs = new DirectoryIterator($this->i18nPath);
+		$dirs = new DirectoryIterator(I18N_PATH);
 		foreach ($dirs as $dir) {
 			if ($dir->isDot()) {
 				continue;
@@ -32,7 +25,7 @@ class I18nFile {
 
 	public function dump(array $i18n) {
 		foreach ($i18n as $language => $file) {
-			$dir = $this->i18nPath . DIRECTORY_SEPARATOR . $language;
+			$dir = I18N_PATH . DIRECTORY_SEPARATOR . $language;
 			if (!file_exists($dir)) {
 				mkdir($dir);
 			}
diff --git a/cli/i18n/I18nUsageValidator.php b/cli/i18n/I18nUsageValidator.php
index 2e402faf0..681e17326 100644
--- a/cli/i18n/I18nUsageValidator.php
+++ b/cli/i18n/I18nUsageValidator.php
@@ -16,6 +16,12 @@ class I18nUsageValidator implements I18nValidatorInterface {
 	}
 
 	public function displayReport() {
+		if ($this->failedEntries > $this->totalEntries) {
+			throw new \RuntimeException('The number of unused strings cannot be higher than the number of strings');
+		}
+		if ($this->totalEntries === 0) {
+			return 'There is no data.' . PHP_EOL;
+		}
 		return sprintf('%5.1f%% of translation keys are unused.', $this->failedEntries / $this->totalEntries * 100) . PHP_EOL;
 	}