formattedString with null fix (#117)

Signed-off-by: Piotr PG Gajek <[email protected]>

Author: pgajek2

force-app/main/default/classes/SOQL.cls

@@ -1494,7 +1494,7 @@ public virtual inherited sharing class SOQL implements Queryable {
         }
 
         private String formattedString(String value) {
-            return value ?? value.trim();
+            return value ?? value?.trim();
         }
 
         public Filter isIn(Iterable<Object> iterable) {

force-app/main/default/classes/SOQL_Test.cls

@@ -1075,6 +1075,20 @@ private class SOQL_Test {
         Assert.areEqual('%Test%', binding.get('v1'));
     }
 
+    @IsTest
+    static void containsNull() {
+        // Test
+        SOQL builder = SOQL.of(Account.SObjectType)
+            .whereAre(SOQL.Filter.with(Account.Name).contains(null));
+
+        // Verify
+        String soql = builder.toString();
+        Assert.areEqual('SELECT Id FROM Account WHERE Name LIKE :v1', soql);
+
+        Map<String, Object> binding = builder.binding();
+        Assert.areEqual('%null%', binding.get('v1'));
+    }
+
     @IsTest
     static void notContains() {
         // Test