test: use assert_eq!(X, Ok(())) where possible for better error messa…

…ge (#883)

crates/mempool/src/mempool_test.rs

@@ -148,7 +148,7 @@ fn commit_block(
         (contract_address!(address), AccountState { nonce: Nonce(felt!(nonce)) })
     }));
 
-    assert!(mempool.commit_block(state_changes).is_ok());
+    assert_eq!(mempool.commit_block(state_changes), Ok(()));
 }
 
 /// Creates a valid input for mempool's `add_tx` with optional default values.

crates/mempool_node/src/config/config_test.rs

@@ -116,7 +116,7 @@ fn test_valid_component_execution_config(#[case] location: LocationType) {
         remote_config,
         ..ComponentExecutionConfig::default()
     };
-    assert!(component_exe_config.validate().is_ok());
+    assert_eq!(component_exe_config.validate(), Ok(()));
 }
 
 #[test]

crates/papyrus_storage/src/mmap_file/mmap_file_test.rs

@@ -16,12 +16,12 @@ fn config_validation() {
     config.max_size = config.growth_step - 1;
     assert!(config.validate().is_err());
     config.max_size = 1 << 27;
-    assert!(config.validate().is_ok());
+    assert_eq!(config.validate(), Ok(()));
 
     config.growth_step = config.max_object_size - 1;
     assert!(config.validate().is_err());
     config.growth_step = 1 << 20;
-    assert!(config.validate().is_ok());
+    assert_eq!(config.validate(), Ok(()));
 }
 
 #[test]