Fix random test failure in TestChefApiClient

The check of the timestamp header fails when rolling over to a new
minute.    Change the code to compare the length of the interval
instead.

Issue-ID: APPC-411
Change-Id: I3a98aab2de878335a2bc320d261fee3101fd0652
Signed-off-by: Skip Wonnell <skip@att.com>
diff --git a/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/.gitignore b/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/.gitignore
index 755cdc3..541e608 100644
--- a/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/.gitignore
+++ b/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/.gitignore
@@ -1,3 +1,4 @@
 /bin/
 /target/
-/.settings/
+/target-ide/
+/.settings/
\ No newline at end of file
diff --git a/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/src/test/java/org/onap/appc/adapter/chef/chefclient/TestChefApiClient.java b/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/src/test/java/org/onap/appc/adapter/chef/chefclient/TestChefApiClient.java
index bf718ab..b8be225 100644
--- a/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/src/test/java/org/onap/appc/adapter/chef/chefclient/TestChefApiClient.java
+++ b/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/src/test/java/org/onap/appc/adapter/chef/chefclient/TestChefApiClient.java
@@ -9,15 +9,15 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
- * 
+ *
  * ECOMP is a trademark and service mark of AT&T Intellectual Property.
  * ============LICENSE_END=========================================================
  */
@@ -27,15 +27,12 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
-
 import java.io.InputStream;
-import java.text.SimpleDateFormat;
-import java.util.Date;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.time.format.DateTimeFormatter;
+import java.time.temporal.ChronoUnit;
 import java.util.Properties;
-import java.util.TimeZone;
-import java.util.regex.Pattern;
-
-
 import org.junit.Before;
 import org.junit.Test;
 import org.onap.appc.adapter.chef.chefapi.ApiMethod;
@@ -48,6 +45,7 @@
 
     private ChefApiClient client;
     private Properties props;
+    private static DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss'Z'");
 
     @Before
     public void setup() throws IllegalArgumentException, IllegalAccessException {
@@ -64,25 +62,22 @@
             e.printStackTrace();
             fail("Could not initialize properties");
         }
-        client = new ChefApiClient(
-                props.getProperty("org.onap.appc.adapter.chef.chefclient.userId"),
-                System.getProperty("user.dir") +
-                        props.getProperty("org.onap.appc.adapter.chef.chefclient.pemPath"),
+        client = new ChefApiClient(props.getProperty("org.onap.appc.adapter.chef.chefclient.userId"),
+                System.getProperty("user.dir") + props.getProperty("org.onap.appc.adapter.chef.chefclient.pemPath"),
                 props.getProperty("org.onap.appc.adapter.chef.chefclient.endPoint"),
                 props.getProperty("org.onap.appc.adapter.chef.chefclient.organizations"));
     }
 
     @Test
-    public void testGet(){
+    public void testGet() {
         Get get = client.get(props.getProperty("org.onap.appc.adapter.chef.chefclient.path"));
         ApiMethod method = get.execute();
         String[] response = method.test.split("\n");
-
         thenStringShouldMatch("GET", response);
     }
 
     @Test
-    public void testPut(){
+    public void testPut() {
         Put put = client.put(props.getProperty("org.onap.appc.adapter.chef.chefclient.path"));
         ApiMethod method = put.execute();
         String[] response = method.test.split("\n");
@@ -100,7 +95,7 @@
     }
 
     @Test
-    public void testDelete(){
+    public void testDelete() {
         Delete delete = client.delete(props.getProperty("org.onap.appc.adapter.chef.chefclient.path"));
         ApiMethod method = delete.execute();
         String[] response = method.test.split("\n");
@@ -108,24 +103,17 @@
         thenStringShouldMatch("DELETE", response);
     }
 
-    private String timestamp(){
-        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
-        sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
-        String timeStamp = sdf.format(new Date());
-        timeStamp = timeStamp.replace(" ", "T");
-        timeStamp = timeStamp + "Z";
-        return timeStamp;
-    }
-
-    private void thenStringShouldMatch(String method, String[] response){
+    private void thenStringShouldMatch(String method, String[] response) {
         assertEquals("sb Method:" + method, response[0]);
         assertEquals("Hashed Path:+JEk1y2gXwqZRweNjXYtx4ojxW8=", response[1]);
         assertEquals("X-Ops-Content-Hash:2jmj7l5rSw0yVb/vlWAYkK/YBwk=", response[2]);
-        String timestamp = timestamp().substring(0, timestamp().length() - 3);
-        String regEx = "X-Ops-Timestamp:" +
-                 timestamp +
-                "...";
-        assertTrue(Pattern.matches(regEx, response[3]));
+        checkTimestamp(response[3], 5000);
         assertEquals("X-Ops-UserId:test", response[4]);
     }
-}
+
+    private void checkTimestamp(String timeStampHeader, long maxDeltaMs) {
+        assertTrue(timeStampHeader.startsWith("X-Ops-Timestamp:"));
+        LocalDateTime ld1 = LocalDateTime.parse(timeStampHeader.replace("X-Ops-Timestamp:", ""), dtf);
+        assertTrue(ChronoUnit.MILLIS.between(ld1, LocalDateTime.now(ZoneId.of("UTC"))) <= maxDeltaMs);
+    }
+}
\ No newline at end of file