Refactor context resolution logic and add integration tests for child relationships

Author: cesarParra

docs/public/packages.json

@@ -1,4 +1,4 @@
 {
-  "packageId": "04tRb0000044fYYIA",
+  "packageId": "04tRb0000045WPxIAM",
   "componentPackageId": "04tRb0000012Mv8IAE"
 }

expression-src/main/src/interpreter/ContextResolver.cls

@@ -272,11 +272,6 @@ public with sharing class ContextResolver implements Visitor {
                 // References to @Context fields will always go to the top level query
                 // as they are part of the global contextual context tied to the record Id
                 // from which the Evaluation was started.
-
-                // TODO Add UT:
-                //  @Context.Contacts
-                //  -> WHERE(FirstName = "Georgina")
-
                 return addFieldToQuery(this.topLevelQuery, referenceName.toLowerCase());
             } else {
                 this.queryContext.queryBuilder.selectField(referenceName);

sfdx-project.json

@@ -13,7 +13,7 @@
       "default": true
     },
     {
-      "path": "unpackaged",
+      "path": "unpackaged/integration-tests",
       "default": false
     }
   ],

sfdx-project_packaging.json

@@ -3,7 +3,7 @@
     {
       "package": "Expression",
       "versionName": "Version 1.36",
-      "versionNumber": "1.47.0.NEXT",
+      "versionNumber": "1.48.0.NEXT",
       "path": "expression-src",
       "default": false,
       "versionDescription": "Expression core language",
@@ -76,6 +76,7 @@
     "Expression@1.44.0-1": "04tRb000003z0hJIAQ",
     "Expression@1.45.0-1": "04tRb0000042CNlIAM",
     "Expression@1.46.0-1": "04tRb000004400jIAA",
-    "Expression@1.47.0-1": "04tRb0000044fYYIAY"
+    "Expression@1.47.0-1": "04tRb0000044fYYIAY",
+    "Expression@1.48.0-1": "04tRb0000045WPxIAM"
   }
 }

…ration-tests/classes/IntegrationTest.cls …ration-tests/classes/IntegrationTest.clsunpackaged/examples/integration-tests/classes/IntegrationTest.cls renamed to unpackaged/integration-tests/classes/IntegrationTest.cls unpackaged/examples/integration-tests/classes/IntegrationTest.cls renamed to unpackaged/integration-tests/classes/IntegrationTest.cls

@@ -1,5 +1,22 @@
 @IsTest
 private class IntegrationTest {
+    @IsTest
+    static void usingChildRelationships() {
+        Account anyAccount = new Account(Name = 'Sample Account');
+        insert anyAccount;
+        Contact firstContact = new Contact(FirstName = 'First', LastName = 'Contact', AccountId = anyAccount.Id);
+        Contact secondContact = new Contact(FirstName = 'Second', LastName = 'Contact', AccountId = anyAccount.Id);
+        insert new List<Contact> { firstContact, secondContact };
+
+        String expressionPiped = '@Context.Contacts -> WHERE(FirstName = "First") -> SIZE() = 1';
+        Boolean pipedResult = (Boolean)Evaluator.run(expressionPiped, anyAccount.Id);
+        Assert.isTrue(pipedResult, 'There should be exactly one contact with the first name "First".');
+
+        String expressionNested = 'SIZE(WHERE(@Context.Contacts, FirstName = "First")) = 1';
+        Boolean nestedResult = (Boolean)Evaluator.run(expressionNested, anyAccount.Id);
+        Assert.isTrue(nestedResult, 'There should be exactly one contact with the first name "First".');
+    }
+
     @IsTest
     static void hasPurchasedSomethingInThePast() {
         List<CustomRecordContext> contexts = getContexts();