优化

app/src/test/java/io/legado/app/JsTest.kt

@@ -5,9 +5,26 @@ import io.legado.app.constant.SCRIPT_ENGINE
 import org.intellij.lang.annotations.Language
 import org.junit.Assert
 import org.junit.Test
+import org.mozilla.javascript.Context
 
 class JsTest {
 
+    @Language("js")
+    private val printJs = """
+        function print(str, newline) {
+            if (typeof(str) == 'undefined') {
+                str = 'undefined';
+            } else if (str == null) {
+                str = 'null';
+            } 
+            java.lang.System.out.print(String(str));
+            if (newline) java.lang.System.out.print("\n");
+        }
+        function println(str) { 
+            print(str, true);
+        }
+    """.trimIndent()
+
     @Test
     fun testMap() {
         val map = hashMapOf("id" to "3242532321")
@@ -20,9 +37,11 @@ class JsTest {
         Assert.assertEquals("12314123", result)
     }
 
-
     @Test
     fun testFor() {
+        val context = SCRIPT_ENGINE.getScriptContext(SimpleBindings())
+        val scope = SCRIPT_ENGINE.getRuntimeScope(context)
+        Context.enter().evaluateString(scope, printJs, "print", 1, null)
         @Language("js")
         val jsFor = """
             let result = 0
@@ -30,16 +49,19 @@ class JsTest {
             let l=a.length
             for (let i = 0;i<l;i++){
             	result = result + a[i]
+                println(i)
             }
             for (let o of a){
             	result = result + o
+                println(o)
             }
             for (let o in a){
             	result = result + o
+                println(o)
             }
             result
         """.trimIndent()
-        val result = SCRIPT_ENGINE.eval(jsFor).toString()
+        val result = SCRIPT_ENGINE.eval(jsFor, scope).toString()
         Assert.assertEquals("12012", result)
     }