Comments (5)
The way Dagger and Auto do it is using "integration tests": using the maven-invoker-plugin to spawn Maven projects (stored in src/it
) and assert about their outcome (success, failure, etc.)
That however means you'll duplicate code between unit-tests using compile-testing and integration-tests using m-invoker-p.
from compile-testing.
Thx @tbroyer , I need a system like that.
Example in Auto (for future reference) : https://github.com/google/auto/blob/master/value/pom.xml
There is no pure gradle solution ?
from compile-testing.
I was looking for this feature in compile-testing too while I was evaluating it as a replacement for some testing code. Not finding the feature directly, I figured this feature was slightly out of scope for this library.
This is certainly possible using the underlying Java Compiler API (JSR 199 I think). Here's a quick and dirty example: https://gist.github.com/johncarl81/46306590cbdde5a3003f
Notice that I am calling an assertion against generated code:
TestTarget testTarget = (TestTarget) loader.loadClass("ProcessedTest").newInstance();
assertEquals("Hello", testTarget.get());
from compile-testing.
I like that @johncarl81 , I had implemented the strategy proposed by @tbroyer in a former project :
https://github.com/stephanenicolas/boundbox/tree/master/boundbox-library-integration-tests
(if this can help anyone).
And your approach @johncarl81, in the same project for unit testing the processor (at that time I didn't know about truth) :
https://github.com/stephanenicolas/boundbox/blob/master/boundbox-library/src/test/java/org/boundbox/processor/BoundBoxProcessorTest.java
I think both techniques are interesting, I need to sort out what are the advantages and drawbacks of each of them. Sure, it looks like having an integration-test project with sample like classes and their associated tests seems easier, but they ain't unit tests.
Thx all @tbroyer and @johncarl81 for your answers. I wish this issue can be useful to others.
@cgruber, you can probably close it, I am really not sure this kind of testing might fall into the scope of your lib as indicated by @johncarl81.
Btw, I am still amazed by the amount of help one can get in 4 hours only by posting an issue on GH. ;)
Hail to FOSS community !
from compile-testing.
Yeah - we had requests for this sort of testing internally too, and found that such features were typically overwrought, and you just wanted to actually use the code in an integration test. They're not actually unit-tests, since you're testing the whole process of source -> compilation (wiht processing optionally) -> execution. That's an end-to-end test, albeit a small one. I'll close this.
from compile-testing.
Related Issues (20)
- Annotation processor's Filer can't read the files being compiled HOT 9
- Android/AGP 3.6.2 breaks JavaFileObjects.forResource HOT 4
- “NoSuchMethodErrors” due to multiple versions of com.google.guava:guava:jar HOT 3
- Fix incompatibility vs. Truth HOT 2
- [feature request] support assert generate multi source file. HOT 1
- If there are invalid class in the source file, the process method of processor will not be invoked. HOT 2
- Javac plugins cannot be found HOT 5
- Access to compiler internal APIs will fail starting with JDK 16 HOT 7
- Test classpath isolation HOT 1
- how to pass libraries through javac -cp in a text file for example HOT 1
- We probably don't handle recent Java features HOT 1
- No release since Oct, 2020 HOT 3
- Compile with Lombok Annotations HOT 8
- [BUG] InMemoryJavaFileManager.uriForJavaFileObject() breaks when supplied with a Locations.ModuleLocationHandler HOT 4
- Release 0.20? HOT 2
- Request: Automatically configure compiler to reflect the test module's pom file (or build.gradle) HOT 2
- Incompatibility with the last version of truth HOT 1
- Output information about why an assertion failed HOT 9
- test annotation processors generate source code is correct ,but report error: cannot find symbol HOT 2
- JDK16+ --add-exports not working as expected HOT 5
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from compile-testing.