mirror of
https://github.com/denoland/deno.git
synced 2024-12-29 02:29:06 -05:00
134 lines
3.2 KiB
Markdown
134 lines
3.2 KiB
Markdown
# specs
|
|
|
|
These are integration tests that execute the `deno` binary. They supersede the
|
|
`itest` macro found in the `tests/integration` folder and are the preferred way
|
|
of writing tests that use the `deno` binary.
|
|
|
|
## Structure
|
|
|
|
Tests must have the following directory structure:
|
|
|
|
```
|
|
tests/specs/<category_name>/<test_name>/__test__.json
|
|
```
|
|
|
|
## Test filtering
|
|
|
|
To run a specific test, run:
|
|
|
|
```
|
|
cargo test specs::category_name::test_name
|
|
```
|
|
|
|
Or just the following, though it might run other tests:
|
|
|
|
```
|
|
cargo test test_name
|
|
```
|
|
|
|
To run showing the output of every test use `-- --nocapture` (note: this will
|
|
cause tests to run sequentially instead of in parallel):
|
|
|
|
```
|
|
cargo test test_name -- --nocapture
|
|
```
|
|
|
|
## `__test__.json` file
|
|
|
|
This file describes the test(s) to execute and the steps to execute. A basic
|
|
example looks like:
|
|
|
|
```json
|
|
{
|
|
"args": "run main.js",
|
|
"output": "main.out"
|
|
}
|
|
```
|
|
|
|
This will run `deno run main.js` then assert that the output matches the text in
|
|
`main.out`.
|
|
|
|
Or another example that runs multiple steps:
|
|
|
|
```json
|
|
{
|
|
"tempDir": true,
|
|
"steps": [{
|
|
"args": "cache main.ts",
|
|
"output": "cache.out"
|
|
}, {
|
|
"args": "run main.ts",
|
|
"output": "error.out",
|
|
"exitCode": 1
|
|
}]
|
|
}
|
|
```
|
|
|
|
Or if you want to run several tests at the same time:
|
|
|
|
```json
|
|
{
|
|
"tests": {
|
|
"ignore_dir": {
|
|
"args": "run script.ts",
|
|
"output": "script.out"
|
|
},
|
|
"some_other_test": {
|
|
"args": "run other.ts",
|
|
"output": "other.out"
|
|
}
|
|
}
|
|
}
|
|
```
|
|
|
|
### Top level properties
|
|
|
|
- `repeat` (number) - Number of times to repeat a test.
|
|
- `tempDir` (boolean) - Copy all the non-test files to a temporary directory and
|
|
execute the command in that temporary directory.
|
|
- By default, tests are executed with a current working directory of the test,
|
|
but this may not be desirable for tests such as ones that create a
|
|
node_modules directory.
|
|
|
|
### Step properties
|
|
|
|
When writing a single step, these may be at the top level rather than nested in
|
|
a "steps" array or "tests" object.
|
|
|
|
- `args` - A string (that will be spilt on whitespace into an args array) or an
|
|
array of arguments.
|
|
- `output` - Path to use to assert the output or text (must end with an .out
|
|
extension) _or_ text to pattern match against the output.
|
|
- `flaky` - Step should be repeated until success a maximum of 3 times.
|
|
- `if` (`"windows"`, `"linux"`, `"mac"`, `"unix"`) - Whether to run this step.
|
|
- `exitCode` (number) - Expected exit code.
|
|
|
|
### Auto-complete
|
|
|
|
To get auto-complete for these files, add the following to a local
|
|
`.vscode/settings.json` file:
|
|
|
|
```json
|
|
{
|
|
"json.schemas": [{
|
|
"fileMatch": [
|
|
"__test__.jsonc"
|
|
],
|
|
"url": "./tests/specs/schema.json"
|
|
}]
|
|
}
|
|
```
|
|
|
|
## `.out` files
|
|
|
|
`.out` files are used to assert the output when running a test or test step.
|
|
|
|
Within the file, you can use the following for matching:
|
|
|
|
- `[WILDCARD]` - match any text at the wildcard
|
|
- `[WILDLINE]` - match any text on the current line
|
|
- `[WILDCHAR]` - match the next character
|
|
- `[WILDCHARS(5)]` - match any of the next 5 characters
|
|
- `[UNORDERED_START]` followed by many lines then `[UNORDERED_END]` will match
|
|
the lines in any order (useful for non-deterministic output)
|
|
- `[# example]` - line comments start with `[#` and end with `]`
|