PR(DEMO): Magic policyID substitution and demo

Note: the demo tests will be reverted after draft approval

tests/integration/acp/demo/demo_test.go

@@ -0,0 +1,137 @@
+// Copyright 2024 Democratized Data Foundation
+//
+// Use of this software is governed by the Business Source License
+// included in the file licenses/BSL.txt.
+//
+// As of the Change Date specified in that file, in accordance with
+// the Business Source License, use of this software will be governed
+// by the Apache License, Version 2.0, included in the file
+// licenses/APL.txt.
+
+package test_acp_demo
+
+import (
+	"testing"
+
+	"github.com/sourcenetwork/immutable"
+
+	testUtils "github.com/sourcenetwork/defradb/tests/integration"
+)
+
+func TestACP_DEMO(t *testing.T) {
+	test := testUtils.TestCase{
+
+		Description: "DEMO",
+
+		Actions: []any{
+			testUtils.AddPolicy{ // Specified and subbed in for User1 and User2 schema below
+
+				Identity: immutable.Some(1),
+
+				Policy: `
+                    name: test
+                    description: a test policy which marks a collection in a database as a resource
+
+                    actor:
+                      name: actor
+
+                    resources:
+                      users:
+                        permissions:
+                          read:
+                            expr: owner + reader
+                          write:
+                            expr: owner
+
+                        relations:
+                          owner:
+                            types:
+                              - actor
+                          reader:
+                            types:
+                              - actor
+                          admin:
+                            manages:
+                              - reader
+                            types:
+                              - actor
+                `,
+
+				// TODO: Remove after draft is approved
+				// Note: This is also valid now that it is optional, but we don't need to provide it at all.
+				ExpectedPolicyID: immutable.Some(
+					"94eb195c0e459aa79e02a1986c7e731c5015721c18a373f2b2a0ed140a04b454",
+				),
+			},
+
+			testUtils.AddPolicy{ // Specified and subbed in for User3 schema below
+
+				Identity: immutable.Some(1),
+
+				Policy: `
+                    name: test
+                    description: another policy
+
+                    actor:
+                      name: actor
+
+                    resources:
+                      users:
+                        permissions:
+                          read:
+                            expr: owner + reader
+                          write:
+                            expr: owner
+
+                        relations:
+                          owner:
+                            types:
+                              - actor
+                          reader:
+                            types:
+                              - actor
+                          admin:
+                            manages:
+                              - reader
+                            types:
+                              - actor
+                `,
+
+				// TODO: Remove after draft is approved
+				// Note: No policyID assertion needed
+			},
+
+			testUtils.SchemaUpdate{
+				Schema: `
+					type Users1 @policy(
+						id: "%policyID%",
+						resource: "users"
+					) {
+						name: String
+						age: Int
+					}
+
+					type User2 @policy(
+						id: "%policyID%",
+						resource: "users"
+					) {
+						name: String
+						age: Int
+					}
+
+					type User3 @policy(
+						id: "%policyID%",
+						resource: "users"
+					) {
+						name: String
+						age: Int
+					}
+				`,
+
+				PolicyIDs: immutable.Some([]int{0, 0, 1}),
+			},
+		},
+	}
+
+	testUtils.ExecuteTestCase(t, test)
+}