feat(responsetemplate): add isPending method

centralnicgroup-public/hexonet-api-documentation#1

Author: KaiSchwarz-cnic

src/main/java/net/hexonet/apiconnector/ResponseTemplate.java

@@ -121,4 +121,17 @@ public boolean isTmpError() {
         String code = (String) this.hash.get("CODE");
         return code.charAt(0) == '4';
     }
+
+    /**
+     * Check if current operation is returned as pending
+     * 
+     * @return boolean result
+     */
+    public boolean isPending() {
+        String pending = (String) this.hash.get("PENDING");
+        if (pending != null) {
+            return pending.equals("1");
+        }
+        return false;
+    }
 }

src/test/java/net/hexonet/apiconnector/ResponseTemplateTest.java

@@ -66,4 +66,23 @@ public void getRuntime2() {
                 "[RESPONSE]\r\ncode=423\r\ndescription=Empty API response\r\nruntime=0.12\r\nEOF\r\n");
         assertEquals(0.12, tpl.getRuntime(), 0);
     }
+
+    /**
+     * Test isPending method #1
+     */
+    @Test
+    public void isPending1() {
+        ResponseTemplate tpl = new ResponseTemplate("");
+        assertEquals(false, tpl.isPending());
+    }
+
+    /**
+     * Test isPending method #2
+     */
+    @Test
+    public void isPending2() {
+        ResponseTemplate tpl = new ResponseTemplate(
+                "[RESPONSE]\r\ncode=423\r\ndescription=Empty API response\r\npending=1\r\nEOF\r\n");
+        assertEquals(true, tpl.isPending());
+    }
 }