diff --git a/content/test/content_test_bundle_data.filelist b/content/test/content_test_bundle_data.filelist
index abd0154af405c..cdbb0fca17a51 100644
--- a/content/test/content_test_bundle_data.filelist
+++ b/content/test/content_test_bundle_data.filelist
@@ -6011,6 +6011,7 @@ data/attribution_reporting/interop/aggregatable_contributions_creation.json
data/attribution_reporting/interop/aggregatable_contributions_with_filtering_ids.json
data/attribution_reporting/interop/aggregatable_debug_reports.json
data/attribution_reporting/interop/aggregatable_debug_reports_limits.json
+data/attribution_reporting/interop/aggregatable_debug_reports_trigger.json
data/attribution_reporting/interop/aggregatable_debug_reports_with_filtering_ids.json
data/attribution_reporting/interop/aggregatable_dedup_key.json
data/attribution_reporting/interop/aggregatable_large_key.json
diff --git a/content/test/data/attribution_reporting/interop/aggregatable_debug_reports_trigger.json b/content/test/data/attribution_reporting/interop/aggregatable_debug_reports_trigger.json
new file mode 100644
index 0000000000000..854bf020ecb5a
--- /dev/null
+++ b/content/test/data/attribution_reporting/interop/aggregatable_debug_reports_trigger.json
@@ -0,0 +1,386 @@
+{
+ "description": "Aggregatable debug reports creation for trigger registrations",
+ "api_config": {
+ "needs_aggregatable_debug": true
+ },
+ "input": {
+ "registrations": [
+ {
+ "timestamp": "0",
+ "registration_request": {
+ "context_origin": "https://source.test",
+ "Attribution-Reporting-Eligible": "navigation-source"
+ },
+ "responses": [
+ {
+ "url": "https://reporter.test/register-source",
+ "response": {
+ "Attribution-Reporting-Register-Source": {
+ "destination": "https://destination1.test"
+ }
+ }
+ }
+ ]
+ },
+ {
+ "timestamp": "1",
+ "registration_request": {
+ "context_origin": "https://source.test",
+ "Attribution-Reporting-Eligible": "navigation-source"
+ },
+ "responses": [
+ {
+ "url": "https://reporter.test/register-source",
+ "response": {
+ "Attribution-Reporting-Register-Source": {
+ "destination": "https://destination2.test",
+ "aggregatable_debug_reporting": {
+ "budget": 1024,
+ "key_piece": "0x1"
+ }
+ }
+ }
+ }
+ ]
+ },
+ // No matching source and has matching debug type, creates an
+ // aggregatable debug report.
+ {
+ "timestamp": "2",
+ "registration_request": {
+ "context_origin": "https://destination3.test"
+ },
+ "responses": [
+ {
+ "url": "https://reporter.test/register-trigger",
+ "response": {
+ "Attribution-Reporting-Register-Trigger": {
+ "aggregatable_values": {
+ "a": 1
+ },
+ "aggregatable_debug_reporting": {
+ "key_piece": "0x2",
+ "debug_data": [
+ {
+ "types": ["trigger-no-matching-source"],
+ "key_piece": "0x4",
+ "value": 1
+ }
+ ]
+ }
+ }
+ }
+ }
+ ]
+ },
+ // No matching source and no matching debug type, creates a null
+ // aggregatable debug report.
+ {
+ "timestamp": "3",
+ "registration_request": {
+ "context_origin": "https://destination3.test"
+ },
+ "responses": [
+ {
+ "url": "https://reporter.test/register-trigger",
+ "response": {
+ "Attribution-Reporting-Register-Trigger": {
+ "aggregatable_values": {
+ "a": 1
+ },
+ "aggregatable_debug_reporting": {
+ "key_piece": "0x2",
+ "debug_data": [
+ {
+ "types": ["trigger-aggregate-no-contributions"],
+ "key_piece": "0x4",
+ "value": 1
+ }
+ ]
+ }
+ }
+ }
+ }
+ ]
+ },
+ // Aggregatable debug reporting not configured for the matched source and
+ // no matching debug type, creates a null aggregatable debug report.
+ {
+ "timestamp": "4",
+ "registration_request": {
+ "context_origin": "https://destination1.test"
+ },
+ "responses": [
+ {
+ "url": "https://reporter.test/register-trigger",
+ "response": {
+ "Attribution-Reporting-Register-Trigger": {
+ "aggregatable_values": {
+ "a": 1
+ },
+ "aggregatable_debug_reporting": {
+ "key_piece": "0x2",
+ "debug_data": [
+ {
+ "types": ["trigger-no-matching-source"],
+ "key_piece": "0x4",
+ "value": 1
+ }
+ ]
+ }
+ }
+ }
+ }
+ ]
+ },
+ // Aggregatable debug reporting not configured for the matched source and
+ // has matching debug type, creates a null aggregatable debug report.
+ {
+ "timestamp": "5",
+ "registration_request": {
+ "context_origin": "https://destination1.test"
+ },
+ "responses": [
+ {
+ "url": "https://reporter.test/register-trigger",
+ "response": {
+ "Attribution-Reporting-Register-Trigger": {
+ "aggregatable_values": {
+ "a": 1
+ },
+ "aggregatable_debug_reporting": {
+ "key_piece": "0x2",
+ "debug_data": [
+ {
+ "types": ["trigger-aggregate-no-contributions"],
+ "key_piece": "0x4",
+ "value": 1
+ }
+ ]
+ }
+ }
+ }
+ }
+ ]
+ },
+ // Aggregatable debug reporting configured for the matched source and no
+ // matching debug type, creates a null aggregatable debug report.
+ {
+ "timestamp": "6",
+ "registration_request": {
+ "context_origin": "https://destination2.test"
+ },
+ "responses": [
+ {
+ "url": "https://reporter.test/register-trigger",
+ "response": {
+ "Attribution-Reporting-Register-Trigger": {
+ "aggregatable_values": {
+ "a": 1
+ },
+ "aggregatable_debug_reporting": {
+ "key_piece": "0x2",
+ "debug_data": [
+ {
+ "types": ["trigger-no-matching-source"],
+ "key_piece": "0x4",
+ "value": 1
+ }
+ ]
+ }
+ }
+ }
+ }
+ ]
+ },
+ // Aggregatable debug reporting configured for the matched source and has
+ // matching debug type, creates an aggregatable debug report.
+ {
+ "timestamp": "7",
+ "registration_request": {
+ "context_origin": "https://destination2.test"
+ },
+ "responses": [
+ {
+ "url": "https://reporter.test/register-trigger",
+ "response": {
+ "Attribution-Reporting-Register-Trigger": {
+ "aggregatable_values": {
+ "a": 1
+ },
+ "aggregatable_debug_reporting": {
+ "key_piece": "0x2",
+ "debug_data": [
+ {
+ "types": ["trigger-aggregate-no-contributions"],
+ "key_piece": "0x4",
+ "value": 1
+ }
+ ]
+ }
+ }
+ }
+ }
+ ]
+ },
+ // Aggregatable debug reporting not configured for the source and the
+ // trigger, no aggregatable debug report is created.
+ {
+ "timestamp": "8",
+ "registration_request": {
+ "context_origin": "https://destination1.test"
+ },
+ "responses": [
+ {
+ "url": "https://reporter.test/register-trigger",
+ "response": {
+ "Attribution-Reporting-Register-Trigger": {
+ "aggregatable_values": {
+ "a": 1
+ }
+ }
+ }
+ }
+ ]
+ },
+ // Aggregatable debug reporting configured for the source but not for the
+ // trigger, no aggregatable debug report is created.
+ {
+ "timestamp": "9",
+ "registration_request": {
+ "context_origin": "https://destination2.test"
+ },
+ "responses": [
+ {
+ "url": "https://reporter.test/register-trigger",
+ "response": {
+ "Attribution-Reporting-Register-Trigger": {
+ "aggregatable_values": {
+ "a": 1
+ }
+ }
+ }
+ }
+ ]
+ }
+ ]
+ },
+ "output": {
+ "reports": [
+ {
+ "payload": {
+ "aggregation_coordinator_origin": "https://coordinator.test",
+ "histograms": [ {
+ "id": "0",
+ "key": "0x6",
+ "value": 1
+ } ],
+ "shared_info": {
+ "api": "attribution-reporting-debug",
+ "attribution_destination": "https://destination3.test",
+ "reporting_origin": "https://reporter.test",
+ "scheduled_report_time": "0",
+ "version": "1.0"
+ }
+ },
+ "report_time": "2",
+ "report_url": "https://reporter.test/.well-known/attribution-reporting/debug/report-aggregate-debug"
+ },
+ {
+ "payload": {
+ "aggregation_coordinator_origin": "https://coordinator.test",
+ "histograms": [ {
+ "id": "0",
+ "key": "0x0",
+ "value": 0
+ } ],
+ "shared_info": {
+ "api": "attribution-reporting-debug",
+ "attribution_destination": "https://destination3.test",
+ "reporting_origin": "https://reporter.test",
+ "scheduled_report_time": "0",
+ "version": "1.0"
+ }
+ },
+ "report_time": "3",
+ "report_url": "https://reporter.test/.well-known/attribution-reporting/debug/report-aggregate-debug"
+ },
+ {
+ "payload": {
+ "aggregation_coordinator_origin": "https://coordinator.test",
+ "histograms": [ {
+ "id": "0",
+ "key": "0x0",
+ "value": 0
+ } ],
+ "shared_info": {
+ "api": "attribution-reporting-debug",
+ "attribution_destination": "https://destination1.test",
+ "reporting_origin": "https://reporter.test",
+ "scheduled_report_time": "0",
+ "version": "1.0"
+ }
+ },
+ "report_time": "4",
+ "report_url": "https://reporter.test/.well-known/attribution-reporting/debug/report-aggregate-debug"
+ },
+ {
+ "payload": {
+ "aggregation_coordinator_origin": "https://coordinator.test",
+ "histograms": [ {
+ "id": "0",
+ "key": "0x0",
+ "value": 0
+ } ],
+ "shared_info": {
+ "api": "attribution-reporting-debug",
+ "attribution_destination": "https://destination1.test",
+ "reporting_origin": "https://reporter.test",
+ "scheduled_report_time": "0",
+ "version": "1.0"
+ }
+ },
+ "report_time": "5",
+ "report_url": "https://reporter.test/.well-known/attribution-reporting/debug/report-aggregate-debug"
+ },
+ {
+ "payload": {
+ "aggregation_coordinator_origin": "https://coordinator.test",
+ "histograms": [ {
+ "id": "0",
+ "key": "0x0",
+ "value": 0
+ } ],
+ "shared_info": {
+ "api": "attribution-reporting-debug",
+ "attribution_destination": "https://destination2.test",
+ "reporting_origin": "https://reporter.test",
+ "scheduled_report_time": "0",
+ "version": "1.0"
+ }
+ },
+ "report_time": "6",
+ "report_url": "https://reporter.test/.well-known/attribution-reporting/debug/report-aggregate-debug"
+ },
+ {
+ "payload": {
+ "aggregation_coordinator_origin": "https://coordinator.test",
+ "histograms": [ {
+ "id": "0",
+ "key": "0x7",
+ "value": 1
+ } ],
+ "shared_info": {
+ "api": "attribution-reporting-debug",
+ "attribution_destination": "https://destination2.test",
+ "reporting_origin": "https://reporter.test",
+ "scheduled_report_time": "0",
+ "version": "1.0"
+ }
+ },
+ "report_time": "7",
+ "report_url": "https://reporter.test/.well-known/attribution-reporting/debug/report-aggregate-debug"
+ }
+ ]
+ }
+}