CLI Configuration

Configure the CLI
Currently as-pect will compile each file that matches the globs in the entries property of your configuration. The default entry glob pattern is "assembly/__tests__/**/*.spec.ts". As-pect compiles each of these files, and runs each binary separately inside it's own TestContext.
As of version 7 of as-pect, the CLI options have changed.
-n, --no-logo Don't display the as-pect logo.
-c, --config <config_location> Specify the location of your
[as-pect.config.js] (default:
-a, --as-config <asconfig_location> Specify the location of the as-pect
asconfig. (default:
-v, --version Display the as-pect version. (default:
--init Initialize a testing project. (default:
--memory-size Initial size of imported memory in pages of 64kb. (Default: 10 pages)
--memory-max Set the maximum amount of memory pages
the wasm test modules can use. (Default: -1, no max specified)
-t, --test Match tests with the following regex.
(Default: `(:?)`)
-g, --group Match test groups with the following
regex. (Default `(:?)`)
-d, --disclude <regex> Match test files with the following
regex, disclude them from testing.
-i, --include <globs> A comma seperated list of include globs
that will include files for each test
-o, --output-binary Output the wasm binary for each test
file. (default: true)
--no-run Skip running tests, and output the
binary files.
-u, --update-snapshots Update the existing snapshots. (default: false)
--summary Use the summary reporter. {yellow (This
specified.)} (default: false)
--verbose Use a more verbose reporter. (default:
--csv Use the csv reporter (output results to
csv files.) (default: false)
--json Use the json reporter (output results to
json files.) (default: false)
--reporter Define a custom reporter (path or
module) (default: false)
-s, --show-stats Show compiler stats between
compilations. (default: false)
-h, --help display help for command
A typical configuration is provided when you use asp --init, this must be an ESM module, and your project's `package.json` must be annotated with `"type": "module",`
export default {
* A set of globs passed to the glob package that qualify typescript files for testing.
entries: ["assembly/__tests__/**/*.spec.ts"],
* A set of globs passed to the glob package that quality files to be added to each test.
include: ["assembly/__tests__/**/*.include.ts"],
* A set of regexp that will disclude source files from testing.
disclude: [/node_modules/],
* Add your required AssemblyScript imports here.
async instantiate(memory, createImports, instantiate, binary) {
let instance; // Imports can reference this
const myImports = {
env: { memory }
// put your web assembly imports here, and return the module promise
instance = instantiate(binary, createImports(myImports));
return instance;
/** Enable code coverage by uncommenting the following line. */
// coverage: ["assembly/**/*.ts"],
* Specify if the binary wasm file should be written to the file system.
outputBinary: false,
The instance returned by the async instantiate function represents an AssemblyScript module created by the @assemblyscript/loader package. You can read about how the loader works here.