fixed test assertions

src/test/java/com/contentstack/sdk/TestContentType.java

@@ -19,7 +19,7 @@ void testPrivateAccess() {
         try {
             new ContentType();
         } catch (IllegalAccessException e) {
-            Assertions.assertEquals("Can Not Access Private Modifier", e.getLocalizedMessage());
+            Assertions.assertEquals("Direct instantiation of ContentType is not allowed. Use Stack.contentType(uid) to create an instance.", e.getLocalizedMessage());
             logger.info("passed...");
         }
     }

src/test/java/com/contentstack/sdk/TestContentstack.java

@@ -26,7 +26,7 @@ void initStackPrivateModifier() {
             new Contentstack();
         } catch (Exception e) {
             logger.info(e.getLocalizedMessage());
-            Assertions.assertEquals("Can Not Access Private Modifier", e.getLocalizedMessage());
+            Assertions.assertEquals("Direct instantiation of Stack is not allowed. Use Contentstack.stack() to create an instance.", e.getLocalizedMessage());
         }
     }
 
@@ -67,7 +67,7 @@ void initStackWithEmptyAPIKey() {
             Contentstack.stack("", DELIVERY_TOKEN, ENV);
         } catch (Exception e) {
             logger.info(e.getLocalizedMessage());
-            Assertions.assertEquals("API Key can not be empty", e.getLocalizedMessage(), "Set APIKey Null");
+            Assertions.assertEquals("Missing API key. Provide a valid key from your Contentstack stack settings and try again.", e.getLocalizedMessage(), "Set APIKey Null");
         }
     }
 
@@ -77,7 +77,7 @@ void initStackWithEmptyDeliveryToken() {
             Contentstack.stack(API_KEY, "", ENV);
         } catch (Exception e) {
             logger.info(e.getLocalizedMessage());
-            Assertions.assertEquals("Delivery Token can not be empty", e.getLocalizedMessage(),
+            Assertions.assertEquals("Missing delivery token. Provide a valid token from your Contentstack stack settings and try again.", e.getLocalizedMessage(),
                     "Set deliveryToken Null");
         }
     }
@@ -88,7 +88,7 @@ void initStackWithEmptyEnvironment() {
             Contentstack.stack(API_KEY, DELIVERY_TOKEN, "");
         } catch (Exception e) {
             logger.info(e.getLocalizedMessage());
-            Assertions.assertEquals("Environment can not be empty", e.getLocalizedMessage(), "Set Environment Null");
+            Assertions.assertEquals("Missing environment. Provide a valid environment name and try again.", e.getLocalizedMessage(), "Set Environment Null");
         }
     }
 

src/test/java/com/contentstack/sdk/TestEntry.java

@@ -25,7 +25,7 @@ void entryCallingPrivateModifier() {
         try {
             new Entry();
         } catch (IllegalAccessException e) {
-            Assertions.assertEquals("Can Not Access Private Modifier", e.getLocalizedMessage());
+            Assertions.assertEquals("Direct instantiation of Entry is not allowed. Use ContentType.entry(uid) to create an instance.", e.getLocalizedMessage());
             logger.info("passed.");
         }
     }

src/test/java/com/contentstack/sdk/TestLivePreview.java

@@ -197,7 +197,7 @@ void testLivePreviewWithoutPreviewToken() throws Exception {
             stack.livePreviewQuery(hashMap);
         }, "Expected livePreviewQuery to throw IllegalAccessError");
 
-        Assertions.assertTrue(thrown.getMessage().contains("Provide the Preview Token for the host rest-preview.contentstack.com"), 
+        Assertions.assertTrue(thrown.getMessage().contains("Missing preview token for rest-preview.contentstack.com"), 
             "Exception message should mention that Preview Token is required");
 
         logger.severe(thrown.getMessage());  
@@ -220,7 +220,7 @@ void testLivePreviewDisabled() throws IllegalAccessException, IOException {
     });
 
     // Optionally, you can check the message of the exception
-    assertEquals("Live Preview is not enabled in Config", exception.getMessage(), 
+    assertEquals("Live Preview is not enabled in the configuration. Enable it and try again.", exception.getMessage(), 
                  "Expected exception message does not match");
     }
 

src/test/java/com/contentstack/sdk/TestStack.java

@@ -25,8 +25,8 @@ class TestStack {
     @Order(1)
     void stackExceptionTesting() {
         IllegalAccessException thrown = Assertions.assertThrows(IllegalAccessException.class, Stack::new,
-                "Can Not Access Private Modifier");
-        assertEquals("Can Not Access Private Modifier", thrown.getLocalizedMessage());
+                "Direct instantiation of Stack is not allowed. Use Contentstack.stack() to create an instance.");
+        assertEquals("Direct instantiation of Stack is not allowed. Use Contentstack.stack() to create an instance.", thrown.getLocalizedMessage());
     }
 
     @Test
@@ -35,7 +35,7 @@ void testStackInitThrowErr() {
         try {
             stack = new Stack();
         } catch (IllegalAccessException e) {
-            assertEquals("Can Not Access Private Modifier", e.getLocalizedMessage());
+            assertEquals("Direct instantiation of Stack is not allowed. Use Contentstack.stack() to create an instance.", e.getLocalizedMessage());
         }
     }