Struct wasm_bindgen_test::__rt::Context

pub struct Context { /* fields omitted */ }

Runtime test harness support instantiated in JS.

The node.js entry script instantiates a Context here which is used to drive test execution.

Methods

impl Context

pub fn new() -> Context

Creates a new context ready to run tests.

A Context is the main structure through which test execution is coordinated, and this will collect output and results for all executed tests.

pub fn args(&mut self, args: Vec<JsValue>)

Inform this context about runtime arguments passed to the test harness.

Eventually this will be used to support flags, but for now it's just used to support test filters.

pub fn run(&self, tests: Vec<JsValue>) -> Promise

Executes a list of tests, returning a promise representing their eventual completion.

This is the main entry point for executing tests. All the tests passed in are the JS Function object that was plucked off the WebAssembly.Instance exports list.

The promise returned resolves to either true if all tests passed or false if at least one test failed.

impl Context

pub fn execute_sync(&self, name: &str, f: impl FnOnce() + 'static)

Entry point for a synchronous test in wasm. The #[wasm_bindgen_test] macro generates invocations of this method.

pub fn execute_async<F>(&self, name: &str, f: impl FnOnce() -> F + 'static) where
    F: Future<Item = (), Error = JsValue> + 'static, 

Entry point for an asynchronous in wasm. The #[wasm_bindgen_test(async)] macro generates invocations of this method.

Trait Implementations

impl From<Context> for JsValue

fn from(value: Context) -> Self

Performs the conversion.

impl RefFromWasmAbi for Context

type Abi = u32

The wasm ABI type references to Self are recovered from.

type Anchor = Ref<'static, Context>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don't persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor

Recover a Self::Anchor from Self::Abi.

impl WasmDescribe for Context

fn describe()

impl IntoWasmAbi for Context

type Abi = u32

The wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> u32

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl FromWasmAbi for Context

type Abi = u32

The wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: u32) -> Self

Recover a Self from Self::Abi.

impl OptionFromWasmAbi for Context

fn is_none(abi: &Self::Abi) -> bool

Tests whether the argument is a "none" instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl OptionIntoWasmAbi for Context

fn none() -> Self::Abi

Returns an ABI instance indicating "none", which JS will interpret as the None branch of this option.

impl RefMutFromWasmAbi for Context

type Abi = u32

Same as RefFromWasmAbi::Abi

type Anchor = RefMut<'static, Context>

Same as RefFromWasmAbi::Anchor

unsafe fn ref_mut_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi