Test duration trend sample report
Azure DevOps Services
This article shows you how to create a report that shows the day wise trend of the average time taken to execute a test for a selected time range.
Important
Power BI integration and access to the OData feed of the Analytics Service are in Preview. The sample queries provided in this article are valid only against Azure DevOps Services and depend on v3.0-preview or later version. We encourage you to use these queries and provide us feedback.
An example is shown in the following image.
Note
This article assumes you've read Overview of Sample Reports using OData Queries and have a basic understanding of Power BI.
Prerequisites
- You must be a member of a project with Basic access or higher. If you haven't been added as a project member, get added now. Anyone with access to the project, except stakeholders, can view Analytics views.
- For Analytics data to be available, the corresponding service must be enabled. For example, to query work tracking data, Boards must be enabled. If it is disabled, Analytics views won't be displayed. To re-enable a service, see Turn an Azure DevOps service on or off
- To use Analytics views, enable the Analytics Views preview feature either for individual users or for the organization.
- Also, you must have your *View Analytics permission set to Allow. For more information, see Grant permissions to access the Analytics service.
- To use Power BI for Azure DevOps or to exercise an OData query for Analytics, you must must have your View Analytics permission set to Allow. By default, all Contributors with Basic access are granted access. To edit shared Analytics views, you must have your Edit shared Analytics views permission set to Allow. For more information, see Grant permissions to access the Analytics service.
Sample queries
You can paste the Power BI query listed below directly into the Get Data->Blank Query window. For more information, review Overview of sample reports using OData queries.
let
Source = OData.Feed ("https://analytics.dev.azure.com/{organization}/{project}/_odata/v4.0-preview/TestResultsDaily?
$apply=filter("
&"Pipeline/PipelineName eq '{pipelineName}' "
&"And Date/Date ge {startdate} "
&"And Workflow eq 'Build' "
&") "
&"/groupby( "
&"(TestSK, Test/TestName, Date/Date), "
&"aggregate( "
&"ResultCount with sum as TotalCount, "
&"ResultDurationSeconds with sum as TotalDuration "
&")) "
&"/compute( "
&"TotalDuration div TotalCount as AvgDuration "
&") "
,null, [Implementation="2.0",OmitValues = ODataOmitValues.Nulls,ODataVersion = 4])
in
Source
Substitution strings
Each query contains the following strings that you must replace with your values. Don't include brackets {} with your substitution. For example if your organization name is "Fabrikam", replace {organization} with Fabrikam, not {Fabrikam}.
{organization}- Your organization name{project}- Your team project name{pipelinename}- Your pipeline name. Example:Fabrikam hourly build pipeline.{startdate}- The date to start your report. Format: YYYY-MM-DDZ. Example:2021-09-01Zrepresents September 1, 2021. Don't enclose in quotes or brackets and use two digits for both, month and date.
Query breakdown
The following table describes each part of the query.
Query part
Description
$apply=filter(
Start filter()
Pipeline/PipelineName eq '{pipelineName}'
Return test runs for the specified pipeline
And Date/Date ge {startdate}
Return test runs on or after the specified date
and Workflow eq 'Build'
Return test runs for 'Build' workflow
)
Close filter()
/groupby(
Start groupby()
(TestSK, Test/TestName, Date/Date),
Group by the test Name and date of execution of test
aggregate(
Start aggregate. For all the test runs matching the above filter criteria:
ResultCount with sum as TotalCount,
Count the total number of test runs as TotalCount
ResultDurationSeconds with sum as TotalDuration
Sum the total duration of all the runs as TotalDuration.
))
Close aggregate() and groupby()
/compute(
Start compute()
TotalDuration div TotalCount as AvgDuration
For all the tests, we already have total number of runs and total duration. Calculate average duration by diving total duration by total number of runs.
)
Close compute()
Query filters
To determine available query filters, query the metadata as described in Explore the Analytics OData metadata. You can filter your queries using any of the NavigationPropertyBinding Path values listed under an EntitySet. To learn more about the data type of each value, review the metadata provided for the corresponding EntityType. Each EntitySet corresponds to the singular value for an EntityType.
For example, the EntitySet Name="TestPoints" corresponds to the EntityType Name="TestPoint". The OData metadata for the EntitySet Name="TestPoints" is as shown below for v4.0-preview. You can add filters based on any of the listed NavigationPropertyBinding Path values.
<EntitySet Name="TestPoints" EntityType="Microsoft.VisualStudio.Services.Analytics.Model.TestPoint">
<NavigationPropertyBinding Path="ChangedOn" Target="Dates"/>
<NavigationPropertyBinding Path="Project" Target="Projects"/>
<NavigationPropertyBinding Path="TestSuite" Target="TestSuites"/>
<NavigationPropertyBinding Path="TestConfiguration" Target="TestConfigurations"/>
<NavigationPropertyBinding Path="TestCase" Target="WorkItems"/>
<NavigationPropertyBinding Path="Tester" Target="Users"/>
<NavigationPropertyBinding Path="AssignedTo" Target="Users"/>
<Annotation Term="Org.OData.Display.V1.DisplayName" String="Test Points"/>
</EntitySet>
Power BI transforms
The query returns some columns that you need to expand and flatten into its fields before you can use them in Power BI. In this example, such entities are Test and Date.
After closing the Advanced Editor and while remaining in the Power Query Editor, select the expand button on Test and Date.
Expand the Test and Date column
Choose the expand button
Select the checkbox "(Select All Columns)" to expand
The table now contains the expanded entity Test.TestName.
Change column type
The query doesn't return all the columns in the format in which you can directly consume them in Power BI reports. You can change the column type as shown.
Change the type of column TotalCount to Whole Number.
Change the type of column TotalDuration and AvgDuration to Decimal Number.
Rename fields and query, then Close & Apply
When finished, you may choose to rename columns.
Right-click a column header and select Rename...
You also may want to rename the query from the default Query1, to something more meaningful.
Once done, choose Close & Apply to save the query and return to Power BI.
Create the report
Power BI shows you the fields you can report on.
Note
The example below assumes that no one renamed any columns.
For a simple report, do the following steps:
- Select Power BI Visualization Line Chart.
- Add the field "Date.Date" to Axis.
- Right-click "Date.Date" and select "Date.Date", rather than Date Hierarchy.
- Add the field "AvgDuration" to Values.
- Add Power Visualization Slicer.
- Add the field "Test.TestName" to Field of Slicer.
Your report should look like this.
Full list of Pipelines sample reports
Pipeline
Pipeline and test
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