diff --git a/sof-js/tests/5_constants.test.js b/sof-js/tests/5_constants.test.js
index 1453b47..4ef99ac 100644
--- a/sof-js/tests/5_constants.test.js
+++ b/sof-js/tests/5_constants.test.js
@@ -8,49 +8,100 @@ import {
 } from "./test_helpers.js";
 
 const resources = [
-  { id: "pt1", name: "Dragan" },
-  { id: "pt2", name: "Ivona" }
+  {
+    resourceType: "Patient",
+    id: "pt1",
+    name: [
+      {
+        family: "Block",
+        use: "usual"
+      },
+      {
+        family: "Smith",
+        use: "official"
+      }
+    ]
+  },
+  {
+    resourceType: "Patient",
+    id: "pt2",
+    name: [{
+      family: "Johnson",
+      use: "usual"
+    }]
+  }
 ];
 
 start_case("constant", "constant substitution", resources);
 
 describe("constant", () => {
   add_test({
-    title: "basic constants",
+    title: "constant in path",
     view: {
-      constant: [{ name: "name", valueString: "Dragan" }],
+      constant: [{ name: "name_use", valueString: "official" }],
       select: [
         {
-          forEach: "where(name = %name)",
-          column: [{ name: "id", path: "id" }]
+          column: [
+            { name: "id", path: "id" },
+            {
+              name: "official_name",
+              path: "name.where(use = %name_use).family"
+            }
+          ]
         }
       ]
     },
-    expect: [{ id: "pt1" }]
+    expect: [
+      { id: "pt1", official_name: "Smith" },
+      { id: "pt2", official_name: null }
+    ]
   });
 
   add_test({
-    title: "in global where",
+    title: "constant in forEach",
     view: {
-      constant: [{ name: "name", valueString: "Dragan" }],
+      constant: [{ name: "name_use", valueString: "official" }],
       select: [
         {
-          column: [{ name: "id", path: "id" }]
+          forEach: "name.where(use = %name_use)",
+          column: [
+            { name: "official_name", path: "family" }
+          ]
+        }
+      ]
+    },
+    expect: [
+      { official_name: "Smith" }
+    ]
+  });
+
+  add_test({
+    title: "constant in where element",
+    view: {
+      constant: [{ name: "name_use", valueString: "official" }],
+      select: [
+        {
+          column: [
+            { name: "id", path: "id" },
+            { name: "name", path: "name.family.join(', ')" },
+          ]
         }
       ],
-      where: [{ path: "name = %name" }]
+      where: [{ path: "name.where(use = %name_use)" }]
     },
-    expect: [{ id: "pt1" }]
+    expect: [{ id: "pt1", name: "Block, Smith" }]
   });
 
   add_throwing_test({
     title: "accessing an undefined constant",
     view: {
-      constant: [{ name: "name", valueString: "Dragan" }],
+      constant: [{ name: "name_use", valueString: "official" }],
       select: [
         {
-          forEach: "where(name = %the_name)",
-          column: [{ name: "id", path: "id" }]
+          forEach: "name.where(use = %wrong_name)",
+          column: [
+            { name: "official_name", path: "family" }
+          ]
         }
       ]
     },
@@ -60,11 +111,16 @@ describe("constant", () => {
   invalid_view({
     title: "incorrect constant definition",
     view: {
-      constant: [{ name: "name" }],
+      constant: [{ name: "name_use" }],
       select: [
         {
-          forEach: "where(name = %name)",
-          column: [{ name: "id", path: "id" }]
+          column: [
+            { name: "id", path: "id" },
+            {
+              name: "official_name",
+              path: "name.where(use = %name_use).family"
+            }
+          ]
         }
       ]
     }