--- title: JavaScript function test outcome fields description: Description of the JavaScript function test outcome fields. locale: en-US canonical_url: https://www.servicenow.com/docs/r/australia/it-operations-management/health-log-analytics/hla-mapping-script-outcome-ref.html release: australia product: Health Log Analytics classification: health-log-analytics topic_type: reference last_updated: "2026-03-12" reading_time_minutes: 2 breadcrumb: [Health Log Analytics reference, Health Log Analytics, ITOM AIOps, IT Operations Management] --- # JavaScript function test outcome fields Description of the JavaScript function test outcome fields. The following fields are read-only:
| Field | Description |
|---|---|
| Duration \(ms\) | The processing time of all samples, in milliseconds. |
| Source types | The number of source types predicted or created for this data input. |
| Sources | The number of sources predicted or created for this data input. |
| Errors | The number of JavaScript errors that occurred in all the samples. |
| Unmapped | The number of log lines that could not be mapped. These log lines are mapped to default tags. |
| Samples | The number of log samples on which the test is run.The default value is 1,000. **Note:** You can increase the number of log samples up to a maximum of 5,000 samples in the system property data\_input\_mapping.max\_examples. For more information, see [Configure global Health Log Analytics system properties](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/it-operations-management/health-log-analytics/hla-system-properties-configure.md). |
| List/Tab | Description |
|---|---|
| **Outcome Key Value Mapping** | The results of running the JavaScript function on the log samples. |
| **Source Types \(from samples\)** | The predicted or created source types.**Note:** You can open source types that have already been created by selecting the appropriate link. |
| **Sources \(from samples\)** | The predicted or created sources.**Note:** You can open sources that have already been created by selecting the appropriate link. |
| **Test Outcome** | The log samples used for testing your JavaScript function, ordered by sources and source types.The **Test Outcome** list displays the number of log samples for each source-source type combination, and is updated when the log samples are refreshed and you start testing your script. The list links to samples in the **Mapping Samples** table, which shows the outcome of the JavaScript function for each sample. This feature is supported in the Health Log Analytics application, Version 26.0.17 - February 2023 and later, available from the [ServiceNow Store](https://store.servicenow.com/sn_appstore_store.do#!/store/home). |
| **Source Type Structures** | The source type structures for this data input.Reviewing the source type structures can help you gain a better understanding of the data flow. The **Last event time** column on this tab shows the last date and time the AI engine processed a log for the source type structure. The system refreshes this information every 5 minutes. Knowing when the last log was processed for this source type structure makes it easier to verify that log data is streaming. |