code-coverage
jUnit: How to determine level of code coverage?
I’ve used EclEmma very successfully to cover JUnit test runs. And its free.
Undefined symbols ___llvm_profile_runtime
I was also troubled by the problem. To solve this problem, you may want to add -fprofile-instr-generate to Build Settings > Linking > Other Linker Flags. This flag is an option used for coverage output. With this setting in my environment, I succeeded in enabling the preview while enabling the coverage.
Improve Lombok @Data Code Coverage
In 0.8.0 release, Jacoco added support for filtering out all methods annotated with @lombok.Generated from their reports. The only thing you need to change is to add lombok.config to the root of your project with the following settings: config.stopBubbling = true lombok.addLombokGeneratedAnnotation = true config.stopBubbling = true tells Lombok that this is your root directory … Read more
A difference between statement and decision coverage
The answer by Paul isn’t quite right, at least I think so (according to ISTQB’s definitions). There’s quite significant difference between statement, decision/branch and condition coverage. I’ll use the sample from the other answer but modified a bit, so I can show all three test coverage examples. Tests written here gives 100% test coverage for … Read more
IntelliJ: (Coverage): Error during class instrumentation: … java.lang.ArrayIndexOutOfBoundsException
This seems to be the bug that is reported is IDEA-269838. It is currently marked as resolved / fixed without specifying the version in which it is fixed. I think that means that the fix will be in Intellij IDEA 2021.3 which is due this month (November 2021) according to the JetBrains website.
Open JaCoCo report in Intellij IDEA
Found the solution. I have installed the coverage plugin and the EclEmma plugin (not sure if this one is really necessary…). Then “Run -> Show Coverage Data…” and pick your Jacoco output file. This file HAS to have the .exec extension, otherwise you can’t select it. That was my problem… Thanks
Ignore code coverage for unit tests in EclEmma
I did the following steps: Go to Preferences->Java->Code Coverage and set the “Only path entries matching” option to src/main/java It seems to work nicely.
What is the branch in the destructor reported by gcov?
In a typical implementation the destructor usually has two branches: one for non-dynamic object destruction, another for dynamic object destruction. The selection of a specific branch is performed through a hidden boolean parameter passed to the destructor by the caller. It is usually passed through a register as either 0 or 1. I would guess … Read more
Jest coverage: How can I get a total percentage of coverage?
Thanks to Teneff’s answer, I go with the coverageReporter=”json-summary”. jest –coverage –coverageReporters=”json-summary” This generates a coverage-summary.json file which can easily be parsed. I get the total values directly from the json: “total”: { “lines”: { “total”: 21777, “covered”: 65, “skipped”: 0, “pct”: 0.3 }, “statements”: { “total”: 24163, “covered”: 72, “skipped”: 0, “pct”: 0.3 }, … Read more