pass arguments from selectattr to expression tests

src/main/java/com/hubspot/jinjava/lib/filter/SelectAttrFilter.java

@@ -1,6 +1,7 @@
 package com.hubspot.jinjava.lib.filter;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 import com.hubspot.jinjava.doc.annotations.JinjavaDoc;
@@ -41,6 +42,8 @@ public Object filter(Object var, JinjavaInterpreter interpreter, String... args)
       throw new InterpretException(getName() + " filter requires an attr to filter on", interpreter.getLineNumber());
     }
 
+    String[] expArgs = new String[]{};
+
     String attr = args[0];
 
     ExpTest expTest = interpreter.getContext().getExpTest("truthy");
@@ -49,14 +52,18 @@ public Object filter(Object var, JinjavaInterpreter interpreter, String... args)
       if (expTest == null) {
         throw new InterpretException("No expression test defined with name '" + args[1] + "'", interpreter.getLineNumber());
       }
+
+      if (args.length > 2) {
+        expArgs = Arrays.copyOfRange(args, 2, args.length);
+      }
     }
 
     ForLoop loop = ObjectIterator.getLoop(var);
     while (loop.hasNext()) {
       Object val = loop.next();
       Object attrVal = interpreter.resolveProperty(val, attr);
 
-      if (expTest.evaluate(attrVal, interpreter)) {
+      if (expTest.evaluate(attrVal, interpreter, (Object[]) expArgs)) {
         result.add(val);
       }
     }

src/test/java/com/hubspot/jinjava/lib/filter/SelectAttrFilterTest.java

@@ -33,6 +33,13 @@ public void selectAttrWithExp() {
         .isEqualTo("[2]");
   }
 
+  @Test
+  public void selectAttrWithIsEqualToExp() {
+    assertThat(jinjava.render("{{ users|selectattr('email', 'equalto', 'bar@bar.com') }}", new HashMap<String, Object>()))
+        .isEqualTo("[1]");
+  }
+
+
   public static class User {
     private int num;
     private boolean isActive;