refactor: update the simple template render logic and add tests

src/SimpleTemplate.php

@@ -10,12 +10,11 @@
 namespace PhpPkg\EasyTpl;
 
 use InvalidArgumentException;
+use Toolkit\Stdlib\Str;
 use function array_merge;
 use function explode;
 use function file_get_contents;
-use function sprintf;
 use function str_contains;
-use function strtr;
 
 /**
  * Class SimpleTemplate
@@ -35,7 +34,7 @@ class SimpleTemplate extends AbstractTemplate
     /**
      * @var string
      */
-    private string $formatLeft = '{{';
+    private string $varLeft = '{{';
 
     /**
      * @param string $tplFile
@@ -46,9 +45,8 @@ class SimpleTemplate extends AbstractTemplate
     public function renderFile(string $tplFile, array $tplVars = []): string
     {
         $tplFile = $this->curTplFile = $this->findTplFile($tplFile);
-        $tplCode = file_get_contents($tplFile);
 
-        return $this->renderString($tplCode, $tplVars);
+        return $this->renderString(file_get_contents($tplFile), $tplVars);
     }
 
     /**
@@ -59,22 +57,15 @@ public function renderFile(string $tplFile, array $tplVars = []): string
      */
     public function renderString(string $tplCode, array $tplVars = []): string
     {
-        if (!str_contains($tplCode, $this->formatLeft)) {
+        if (!str_contains($tplCode, $this->varLeft)) {
             return $tplCode;
         }
 
         if ($this->globalVars) {
             $tplVars = array_merge($this->globalVars, $tplVars);
         }
 
-        $fmtVars = [];
-        foreach ($tplVars as $name => $var) {
-            $name = sprintf($this->format, (string)$name);
-            // add
-            $fmtVars[$name] = $var;
-        }
-
-        return strtr($tplCode, $fmtVars);
+        return Str::renderVars($tplCode, $tplVars, $this->format);
     }
 
     /**
@@ -91,12 +82,12 @@ public function getFormat(): string
     public function setFormat(string $format): void
     {
         if (!str_contains($format, '%s')) {
-            throw new InvalidArgumentException('var format must contains %s');
+            throw new InvalidArgumentException('template var format must contains %s');
         }
 
         $this->format = $format;
         // get left chars
         [$left, ] = explode('%s', $format);
-        $this->formatLeft = $left;
+        $this->varLeft = $left;
     }
 }

test/SimpleTemplateTest.php

@@ -0,0 +1,43 @@
+<?php declare(strict_types=1);
+
+namespace PhpPkg\EasyTplTest;
+
+use PhpPkg\EasyTpl\SimpleTemplate;
+
+/**
+ * class SimpleTemplateTest
+ *
+ * @author inhere
+ * @date 2022/12/30
+ */
+class SimpleTemplateTest extends BaseTestCase
+{
+    public function testSimpleTemplate(): void
+    {
+        $st = SimpleTemplate::new();
+        $st->setGlobalVars(['age' => 300]);
+
+        $tpl = <<<TPL
+Hi, my name is {{ name }}, age is {{ age }}.
+first tag: {{ tags.0 }}
+user info: {{ user }}
+TPL;
+
+        $vars = [
+            'name' => 'inhere',
+            'tags' => ['php'],
+            'user' => ['sex' => 'man'],
+        ];
+        $str = $st->renderString($tpl, $vars);
+        $this->assertStringContainsString('name is inhere', $str);
+        $this->assertStringContainsString('age is 300', $str);
+        $this->assertStringContainsString('first tag: php', $str);
+        $this->assertStringContainsString('user info: {sex: man}', $str);
+
+        $str = $st->renderFile($this->getTestdataPath('simple.tpl'), $vars);
+        $this->assertStringContainsString('name is inhere', $str);
+        $this->assertStringContainsString('age is 300', $str);
+        $this->assertStringContainsString('first tag: php', $str);
+        $this->assertStringContainsString('user sex: man', $str);
+    }
+}

test/testdata/simple.tpl

@@ -0,0 +1,3 @@
+Hi, my name is {{ name }}, age is {{ age }}.
+first tag: {{ tags.0 }}
+user sex: {{ user.sex }}