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denoland-deno/tests/unit/README.md
Matt Mastracci f5e46c9bf2
chore: move cli/tests/ -> tests/ (#22369) 
This looks like a massive PR, but it's only a move from cli/tests ->
tests, and updates of relative paths for files.

This is the first step towards aggregate all of the integration test
files under tests/, which will lead to a set of integration tests that
can run without the CLI binary being built.

While we could leave these tests under `cli`, it would require us to
keep a more complex directory structure for the various test runners. In
addition, we have a lot of complexity to ignore various test files in
the `cli` project itself (cargo publish exclusion rules, autotests =
false, etc).

And finally, the `tests/` folder will eventually house the `test_ffi`,
`test_napi` and other testing code, reducing the size of the root repo
directory.

For easier review, the extremely large and noisy "move" is in the first
commit (with no changes -- just a move), while the remainder of the
changes to actual files is in the second commit.
2024-02-10 20:22:13 +00:00

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Deno runtime tests

Files in this directory are unit tests for Deno runtime.

Testing Deno runtime code requires checking API under different runtime permissions. To accomplish this all tests exercised are created using Deno.test() function.

import {} from "./test_util.ts";

Deno.test(function simpleTestFn(): void {
  // test code here
});

Deno.test(
  {
    ignore: Deno.build.os === "windows",
    permissions: { read: true, write: true },
  },
  function complexTestFn(): void {
    // test code here
  },
);

Running tests

There are two ways to run unit_test_runner.ts:

# Run all tests.
cargo run --bin deno -- test --allow-all --unstable --location=http://js-unit-tests/foo/bar cli/tests/unit/

# Run a specific test module
cargo run --bin deno -- test --allow-all --unstable --location=http://js-unit-tests/foo/bar cli/tests/unit/files_test.ts

Http server

target/debug/test_server is required to run when one's running unit tests. During CI it's spawned automatically, but if you want to run tests manually make sure that server is spawned otherwise there'll be cascade of test failures.