Running the integration tests according to readme

[vogella]

https://github.com/eclipse-tycho/tycho/blob/master/CONTRIBUTING.md#writing-tycho-integration-tests describes how to add and run an integration test.

This seems not to work, for example:

1.) Switch to git\tycho\tycho-its\projects\target.usefile
2.) Run build as described in the readme, e.g.

mvn clean verify -Dtycho-version=3.0.4

--> fails with the following:

 mvn clean verify -Dtycho-version=3.0.4
[INFO] Scanning for projects...
[WARNING] The POM for org.eclipse.tycho:tycho-maven-plugin:jar:3 is missing, no dependency information available
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[ERROR] Unresolveable build extension: Plugin org.eclipse.tycho:tycho-maven-plugin:3 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-maven-plugin:jar:3 (absent): org.eclipse.tycho:tycho-maven-plugin:jar:3 was not found in https://repo.eclipse.org/content/repositories/tycho-snapshots/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho-snapshots has elapsed or updates are forced @
[ERROR] Unknown packaging: eclipse-repository @ line 11, column 13
 @
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]
[ERROR]   The project org.eclipse.plaform.releng.buildtools:org.eclipse.platform.jetty.repository:10.0.1 (C:\Users\z004utpb\git\tycho\tycho-its\projects\target.usefile\pom.xml) has 2 errors
[ERROR]     Unresolveable build extension: Plugin org.eclipse.tycho:tycho-maven-plugin:3 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-maven-plugin:jar:3 (absent): org.eclipse.tycho:tycho-maven-plugin:jar:3 was not found in https://repo.eclipse.org/content/repositories/tycho-snapshots/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho-snapshots has elapsed or updates are forced -> [Help 2]
[ERROR]     Unknown packaging: eclipse-repository @ line 11, column 13
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/PluginManagerException

[laeubi]

According to the log output you messed up the version:

Unresolveable build extension: Plugin org.eclipse.tycho:tycho-maven-plugin:3 or one of its dependencies could not be resolved

please note the tycho-maven-plugin:3 where according to your provided call I would exspect something like tycho-maven-plugin:3.0.4

Also different test can require additional parameters, so it is often useful to look at the file that includes the test (e.g. searching for target.usefile in *.java to see if the test has additional requirements.

[vogella]

Looks like this was a "windows thing". The same build command works fine if I do it under Linux.

[vogella]

Thanks @laeubi