pub struct Context { /* private fields */ }
Expand description

Runtime test harness support instantiated in JS.

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

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impl Context

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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.

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

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

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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.

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impl Context

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pub fn execute_sync<T: Termination>( &self, name: &str, f: impl 'static + FnOnce() -> T, should_panic: Option<Option<&'static str>>, ignore: Option<Option<&'static str>> )

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

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pub fn execute_async<F>( &self, name: &str, f: impl FnOnce() -> F + 'static, should_panic: Option<Option<&'static str>>, ignore: Option<Option<&'static str>> )
where F: Future + 'static, F::Output: Termination,

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

Trait Implementations§

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impl From<Context> for JsValue

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fn from(value: Context) -> Self

Converts to this type from the input type.
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impl FromWasmAbi for Context

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type Abi = u32

The wasm ABI type that this converts from when coming back out from the ABI boundary.
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unsafe fn from_abi(js: u32) -> Self

Recover a Self from Self::Abi. Read more
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impl IntoWasmAbi for Context

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type Abi = u32

The wasm ABI type that this converts into when crossing the ABI boundary.
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fn into_abi(self) -> u32

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

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type Abi = u32

Same as RefFromWasmAbi::Abi
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type Anchor = Ref<'static, Context>

Same as RefFromWasmAbi::Anchor
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unsafe fn long_ref_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi
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impl OptionFromWasmAbi for Context

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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.
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impl OptionIntoWasmAbi for Context

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fn none() -> Self::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option. Read more
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impl RefFromWasmAbi for Context

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type Abi = u32

The wasm ABI type references to Self are recovered from.
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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.
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unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor

Recover a Self::Anchor from Self::Abi. Read more
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impl RefMutFromWasmAbi for Context

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type Abi = u32

Same as RefFromWasmAbi::Abi
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type Anchor = RefMut<'static, Context>

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

Same as RefFromWasmAbi::ref_from_abi
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impl TryFromJsValue for Context

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type Error = JsValue

The type returned in the event of a conversion error.
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fn try_from_js_value(value: JsValue) -> Result<Self, Self::Error>

Performs the conversion.
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impl VectorFromWasmAbi for Context

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type Abi = <Box<[JsValue]> as FromWasmAbi>::Abi

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unsafe fn vector_from_abi(js: Self::Abi) -> Box<[Context]>

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impl VectorIntoWasmAbi for Context

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type Abi = <Box<[JsValue]> as IntoWasmAbi>::Abi

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fn vector_into_abi(vector: Box<[Context]>) -> Self::Abi

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impl WasmDescribe for Context

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impl WasmDescribeVector for Context

Auto Trait Implementations§

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impl !RefUnwindSafe for Context

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impl !Send for Context

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impl !Sync for Context

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impl Unpin for Context

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impl !UnwindSafe for Context

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ReturnWasmAbi for T
where T: IntoWasmAbi,

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type Abi = <T as IntoWasmAbi>::Abi

Same as IntoWasmAbi::Abi
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fn return_abi(self) -> <T as ReturnWasmAbi>::Abi

Same as IntoWasmAbi::into_abi, except that it may throw and never return in the case of Err.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.