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Instead of having many small independent tests, we now just have a single test that pulls in all the individual tests and runs them together. Concretely, each `.ql` file has been turned into a `.qll` file with a query predicate corresponding to the original `select` clause and named after the original `.ql` file, plus a prefix `test_`. The newly added `tests.ql` imports all these `.qll`s. The individual `.expected` files have been concatenated together into `tests.expected`, each prefixed with the name of the corresponding query predicate. (This is the format that qltest produces for tests with multiple query predicates.)
Semmle QL
This open source repository contains the standard QL libraries and queries that power LGTM, and the other products that Semmle makes available to its customers worldwide.
How do I learn QL and run queries?
There is extensive documentation on getting started with writing QL. You can use the interactive query console on LGTM.com or the QL for Eclipse plugin to try out your queries on any open-source project that's currently being analyzed.
Contributing
We welcome contributions to our standard library and standard checks. Do you have an idea for a new check, or how to improve an existing query? Then please go ahead and open a pull request! Before you do, though, please take the time to read our contributing guidelines and QL style guide.
License
The LGTM queries are licensed under Apache License 2.0 by Semmle.