Make error messages more consistent

Author: Seif Kamal

docs/use-case.md

@@ -214,7 +214,7 @@ class StatsController {
 - Easy to read
 - Easy to scale
 - Automatic, customisable error messaging; Here's an example:
-> Struct 'Event' failed validation: Invalid value for property 'date'
+> Event failed validation. Invalid value for property: 'date'
 - All possible parameters and their validation rules are documented in code, in the method itself
 - Extensible - `Struct`s are essentially arrays of `callable`s (and other `Struct`s), so they can
 easily be worked into systems and be extended accordingly

src/Exception/InvalidValueException.php

@@ -6,6 +6,6 @@ class InvalidValueException extends \Exception
 {
     public function __construct(string $property)
     {
-        parent::__construct("Invalid value for property '{$property}'");
+        parent::__construct("Invalid value for property: '{$property}'");
     }
 }

src/Exception/MissingPropertyException.php

@@ -6,6 +6,6 @@ class MissingPropertyException extends \Exception
 {
     public function __construct(string $property)
     {
-        parent::__construct("missing value for '{$property}'");
+        parent::__construct("Missing value for property: '{$property}'");
     }
 }

src/Exception/StructValidationException.php

@@ -9,7 +9,7 @@ class StructValidationException extends \Exception
     public function __construct(Struct $struct, \Throwable $reason)
     {
         parent::__construct(
-            "Struct '{$struct->name()}' failed validation: {$reason->getMessage()}",
+            "{$struct->name()} failed validation. {$reason->getMessage()}",
             0,
             $reason
         );

src/Exception/UnexpectedPropertyException.php

@@ -7,7 +7,7 @@ class UnexpectedPropertyException extends \Exception
     public function __construct(string ...$properties)
     {
         parent::__construct(sprintf(
-            "Unexpected %s '%s'",
+            "Unexpected %s: '%s'",
             count($properties) === 1 ? 'property' : 'properties',
             implode(', ', $properties)
         ));