Extend HTML Report to say how many asserts were used in each test case

[nagkumar]

In the above report I want to add total asserts used in that test case.

I was able to count asserts using AOP way and out come is such as

com.tejasoft.tests.ju.ju5.ut.suites.learn.TestSuiteEx

  JUnit Jupiter

    TestExAdd

      √ testAddition()

      Group: JU3
      Total 'assertEquals' Count: 1
      Total 'assertFalse' Count: 1
      Total 'assert*' Count: 2

      Group: JU4
      Total 'assertEquals' Count: 102
      Total 'assert*' Count: 103

      Group: JU5 Asserts
      Total 'assertEquals' Count: 773
      Total 'assert*' Count: 775

      Group: JU5 Assumes

      Group: TNG
      Total 'assertEquals' Count: 1
      Total 'assertTrue' Count: 1
      Total 'assertFalse' Count: 1
      Total 'assertNotNull' Count: 1
      Total 'assertNull' Count: 1
      Total 'assert*' Count: 5

      Group: Approvals
      Total 'verify' Count: 6
      Total 'verifyAll' Count: 2
      Total 'verify*' Count: 8

      Group: Approvals
      Total 'verify' Count: 6
      Total 'verifyAll' Count: 2
      Total 'verify*' Count: 8

      Group: AssertJ
      Total 'assertThat' Count: 22

      Group: Hamcrest
      Total 'assertThat' Count: 62

      Group: All
      Total 'All' Count: 935

How to push the above console output in HTML report at the right place in HTML view.. there are little or no examples for such dashboard extensions.

[portyu9]

Hi @nagkumar

The important distinction here is that this HTML report is generated by Gradle, not by JUnit Jupiter itself.

Therefore a JUnit 5 extension cannot add a new column or custom section to Gradle's built-in HTML report. Gradle does not expose a supported HTML report-template extension API for doing that.

You can publish your assertion counts from the JUnit side as structured report entries, for example through TestReporter or ExtensionContext.publishReportEntry(...), but whether/how those entries are rendered is up to the reporting tool. That does not give you a way to insert a custom "assert count" field into Gradle's standard HTML dashboard.

Since you already have the assertion-count data, the supported approaches are:

1. Publish/store the counts during test execution.
2. Generate a separate custom HTML report from that data, or create a Gradle reporting task/plugin that combines it with the test results.

I would avoid using Gradle internal report classes to modify the existing HTML. The old internal test-reporter replacement hook is deprecated and has no supported replacement.

So this is primarily a Gradle reporting customization problem rather than a JUnit extension problem.

Please mark this answer as accepted if it helped, thank you.