Struct apollo_router::test_harness::TestHarness
source ยท pub struct TestHarness<'a> { /* private fields */ }
Expand description
Builder for the part of an Apollo Router that handles GraphQL requests, as a tower::Service
.
This allows tests, benchmarks, etc to manipulate request and response objects in memory without going over the network on the supergraph side.
On the subgraph side, this test harness never makes network requests to subgraphs
unless with_subgraph_network_requests
is called.
Compared to running a full RouterHttpServer
,
this test harness is lacking:
- Custom endpoints from plugins
- The health check endpoint
- CORS (FIXME: should this include CORS?)
- HTTP compression
Example making a single request:
use apollo_router::services::supergraph;
use apollo_router::TestHarness;
use tower::util::ServiceExt;
let config = serde_json::json!({"supergraph": { "introspection": false }});
let request = supergraph::Request::fake_builder()
// Request building here
.build()
.unwrap();
let response = TestHarness::builder()
.configuration_json(config)?
.build_router()
.await?
.oneshot(request.try_into().unwrap())
.await?
.next_response()
.await
.unwrap();
Implementationsยง
sourceยงimpl<'a> TestHarness<'a>
impl<'a> TestHarness<'a>
sourcepub fn log_level(self, log_level: &'a str) -> Self
pub fn log_level(self, log_level: &'a str) -> Self
Specifies the logging level. Note that this function may not be called more than once. log_level is in RUST_LOG format.
sourcepub fn try_log_level(self, log_level: &'a str) -> Self
pub fn try_log_level(self, log_level: &'a str) -> Self
Specifies the logging level. Note that this function will silently fail if called more than once. log_level is in RUST_LOG format.
sourcepub fn schema(self, schema: &'a str) -> Self
pub fn schema(self, schema: &'a str) -> Self
Specifies the (static) supergraph schema definition.
Panics if called more than once.
If this isnโt called, a default โcannedโ schema is used.
It can be found in the Router repository at apollo-router/testing_schema.graphql
.
In that case, subgraph responses are overridden with some โcannedโ data.
sourcepub fn configuration(self, configuration: Arc<Configuration>) -> Self
pub fn configuration(self, configuration: Arc<Configuration>) -> Self
Specifies the (static) router configuration.
sourcepub fn configuration_json(self, configuration: Value) -> Result<Self, Error>
pub fn configuration_json(self, configuration: Value) -> Result<Self, Error>
Specifies the (static) router configuration as a JSON value,
such as from the serde_json::json!
macro.
sourcepub fn configuration_yaml(
self,
configuration: &'a str,
) -> Result<Self, ConfigurationError>
pub fn configuration_yaml( self, configuration: &'a str, ) -> Result<Self, ConfigurationError>
Specifies the (static) router configuration as a YAML string,
such as from the serde_json::json!
macro.
sourcepub fn extra_plugin<P: Plugin>(self, plugin: P) -> Self
pub fn extra_plugin<P: Plugin>(self, plugin: P) -> Self
Adds an extra, already instanciated plugin.
May be called multiple times. These extra plugins are added after plugins specified in configuration.
sourcepub fn extra_unstable_plugin<P: PluginUnstable>(self, plugin: P) -> Self
pub fn extra_unstable_plugin<P: PluginUnstable>(self, plugin: P) -> Self
Adds an extra, already instantiated unstable plugin.
May be called multiple times. These extra plugins are added after plugins specified in configuration.
sourcepub fn router_hook(
self,
callback: impl Fn(BoxService) -> BoxService + Send + Sync + 'static,
) -> Self
pub fn router_hook( self, callback: impl Fn(BoxService) -> BoxService + Send + Sync + 'static, ) -> Self
Adds a callback-based hook similar to Plugin::router_service
sourcepub fn supergraph_hook(
self,
callback: impl Fn(BoxService) -> BoxService + Send + Sync + 'static,
) -> Self
pub fn supergraph_hook( self, callback: impl Fn(BoxService) -> BoxService + Send + Sync + 'static, ) -> Self
Adds a callback-based hook similar to Plugin::supergraph_service
sourcepub fn execution_hook(
self,
callback: impl Fn(BoxService) -> BoxService + Send + Sync + 'static,
) -> Self
pub fn execution_hook( self, callback: impl Fn(BoxService) -> BoxService + Send + Sync + 'static, ) -> Self
Adds a callback-based hook similar to Plugin::execution_service
sourcepub fn subgraph_hook(
self,
callback: impl Fn(&str, BoxService) -> BoxService + Send + Sync + 'static,
) -> Self
pub fn subgraph_hook( self, callback: impl Fn(&str, BoxService) -> BoxService + Send + Sync + 'static, ) -> Self
Adds a callback-based hook similar to Plugin::subgraph_service
sourcepub fn with_subgraph_network_requests(self) -> Self
pub fn with_subgraph_network_requests(self) -> Self
Enables this test harness to make network requests to subgraphs.
If this is not called, all subgraph requests get an empty response by default
(unless schema
is also not called).
This behavior can be changed by implementing Plugin::subgraph_service
on a plugin given to extra_plugin
.
sourcepub async fn build(self) -> Result<BoxCloneService, BoxError>
๐Deprecated: use build_supergraph instead
pub async fn build(self) -> Result<BoxCloneService, BoxError>
Builds the supergraph service
sourcepub async fn build_supergraph(self) -> Result<BoxCloneService, BoxError>
pub async fn build_supergraph(self) -> Result<BoxCloneService, BoxError>
Builds the supergraph service
sourcepub async fn build_router(self) -> Result<BoxCloneService, BoxError>
pub async fn build_router(self) -> Result<BoxCloneService, BoxError>
Builds the router service
Auto Trait Implementationsยง
impl<'a> Freeze for TestHarness<'a>
impl<'a> !RefUnwindSafe for TestHarness<'a>
impl<'a> Send for TestHarness<'a>
impl<'a> Sync for TestHarness<'a>
impl<'a> Unpin for TestHarness<'a>
impl<'a> !UnwindSafe for TestHarness<'a>
Blanket Implementationsยง
sourceยงimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
sourceยงfn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
sourceยงimpl<T> FutureExt for T
impl<T> FutureExt for T
sourceยงfn with_context(self, otel_cx: Context) -> WithContext<Self>
fn with_context(self, otel_cx: Context) -> WithContext<Self>
sourceยงfn with_current_context(self) -> WithContext<Self>
fn with_current_context(self) -> WithContext<Self>
sourceยงimpl<T> Instrument for T
impl<T> Instrument for T
sourceยงfn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourceยงfn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceยงimpl<T> Instrument for T
impl<T> Instrument for T
sourceยงfn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourceยงfn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceยงimpl<T> IntoEither for T
impl<T> IntoEither for T
sourceยงfn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresourceยงfn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresourceยงimpl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
sourceยงfn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
T
in a tonic::Request
sourceยงimpl<T> Paint for Twhere
T: ?Sized,
impl<T> Paint for Twhere
T: ?Sized,
sourceยงfn fg(&self, value: Color) -> Painted<&T>
fn fg(&self, value: Color) -> Painted<&T>
Returns a styled value derived from self
with the foreground set to
value
.
This method should be used rarely. Instead, prefer to use color-specific
builder methods like red()
and
green()
, which have the same functionality but are
pithier.
ยงExample
Set foreground color to white using fg()
:
use yansi::{Paint, Color};
painted.fg(Color::White);
Set foreground color to white using white()
.
use yansi::Paint;
painted.white();
sourceยงfn bright_black(&self) -> Painted<&T>
fn bright_black(&self) -> Painted<&T>
Returns self
with the
fg()
set to
Color::BrightBlack
.
ยงExample
println!("{}", value.bright_black());
sourceยงfn bright_red(&self) -> Painted<&T>
fn bright_red(&self) -> Painted<&T>
sourceยงfn bright_green(&self) -> Painted<&T>
fn bright_green(&self) -> Painted<&T>
Returns self
with the
fg()
set to
Color::BrightGreen
.
ยงExample
println!("{}", value.bright_green());
sourceยงfn bright_yellow(&self) -> Painted<&T>
fn bright_yellow(&self) -> Painted<&T>
Returns self
with the
fg()
set to
Color::BrightYellow
.
ยงExample
println!("{}", value.bright_yellow());
sourceยงfn bright_blue(&self) -> Painted<&T>
fn bright_blue(&self) -> Painted<&T>
sourceยงfn bright_magenta(&self) -> Painted<&T>
fn bright_magenta(&self) -> Painted<&T>
Returns self
with the
fg()
set to
Color::BrightMagenta
.
ยงExample
println!("{}", value.bright_magenta());
sourceยงfn bright_cyan(&self) -> Painted<&T>
fn bright_cyan(&self) -> Painted<&T>
sourceยงfn bright_white(&self) -> Painted<&T>
fn bright_white(&self) -> Painted<&T>
Returns self
with the
fg()
set to
Color::BrightWhite
.
ยงExample
println!("{}", value.bright_white());
sourceยงfn bg(&self, value: Color) -> Painted<&T>
fn bg(&self, value: Color) -> Painted<&T>
Returns a styled value derived from self
with the background set to
value
.
This method should be used rarely. Instead, prefer to use color-specific
builder methods like on_red()
and
on_green()
, which have the same functionality but
are pithier.
ยงExample
Set background color to red using fg()
:
use yansi::{Paint, Color};
painted.bg(Color::Red);
Set background color to red using on_red()
.
use yansi::Paint;
painted.on_red();
sourceยงfn on_primary(&self) -> Painted<&T>
fn on_primary(&self) -> Painted<&T>
sourceยงfn on_magenta(&self) -> Painted<&T>
fn on_magenta(&self) -> Painted<&T>
sourceยงfn on_bright_black(&self) -> Painted<&T>
fn on_bright_black(&self) -> Painted<&T>
Returns self
with the
bg()
set to
Color::BrightBlack
.
ยงExample
println!("{}", value.on_bright_black());
sourceยงfn on_bright_red(&self) -> Painted<&T>
fn on_bright_red(&self) -> Painted<&T>
Returns self
with the
bg()
set to
Color::BrightRed
.
ยงExample
println!("{}", value.on_bright_red());
sourceยงfn on_bright_green(&self) -> Painted<&T>
fn on_bright_green(&self) -> Painted<&T>
Returns self
with the
bg()
set to
Color::BrightGreen
.
ยงExample
println!("{}", value.on_bright_green());
sourceยงfn on_bright_yellow(&self) -> Painted<&T>
fn on_bright_yellow(&self) -> Painted<&T>
Returns self
with the
bg()
set to
Color::BrightYellow
.
ยงExample
println!("{}", value.on_bright_yellow());
sourceยงfn on_bright_blue(&self) -> Painted<&T>
fn on_bright_blue(&self) -> Painted<&T>
Returns self
with the
bg()
set to
Color::BrightBlue
.
ยงExample
println!("{}", value.on_bright_blue());
sourceยงfn on_bright_magenta(&self) -> Painted<&T>
fn on_bright_magenta(&self) -> Painted<&T>
Returns self
with the
bg()
set to
Color::BrightMagenta
.
ยงExample
println!("{}", value.on_bright_magenta());
sourceยงfn on_bright_cyan(&self) -> Painted<&T>
fn on_bright_cyan(&self) -> Painted<&T>
Returns self
with the
bg()
set to
Color::BrightCyan
.
ยงExample
println!("{}", value.on_bright_cyan());
sourceยงfn on_bright_white(&self) -> Painted<&T>
fn on_bright_white(&self) -> Painted<&T>
Returns self
with the
bg()
set to
Color::BrightWhite
.
ยงExample
println!("{}", value.on_bright_white());
sourceยงfn attr(&self, value: Attribute) -> Painted<&T>
fn attr(&self, value: Attribute) -> Painted<&T>
Enables the styling Attribute
value
.
This method should be used rarely. Instead, prefer to use
attribute-specific builder methods like bold()
and
underline()
, which have the same functionality
but are pithier.
ยงExample
Make text bold using attr()
:
use yansi::{Paint, Attribute};
painted.attr(Attribute::Bold);
Make text bold using using bold()
.
use yansi::Paint;
painted.bold();
sourceยงfn underline(&self) -> Painted<&T>
fn underline(&self) -> Painted<&T>
Returns self
with the
attr()
set to
Attribute::Underline
.
ยงExample
println!("{}", value.underline());
sourceยงfn rapid_blink(&self) -> Painted<&T>
fn rapid_blink(&self) -> Painted<&T>
Returns self
with the
attr()
set to
Attribute::RapidBlink
.
ยงExample
println!("{}", value.rapid_blink());
sourceยงfn quirk(&self, value: Quirk) -> Painted<&T>
fn quirk(&self, value: Quirk) -> Painted<&T>
Enables the yansi
Quirk
value
.
This method should be used rarely. Instead, prefer to use quirk-specific
builder methods like mask()
and
wrap()
, which have the same functionality but are
pithier.
ยงExample
Enable wrapping using .quirk()
:
use yansi::{Paint, Quirk};
painted.quirk(Quirk::Wrap);
Enable wrapping using wrap()
.
use yansi::Paint;
painted.wrap();
sourceยงfn clear(&self) -> Painted<&T>
๐Deprecated since 1.0.1: renamed to resetting()
due to conflicts with Vec::clear()
.
The clear()
method will be removed in a future release.
fn clear(&self) -> Painted<&T>
resetting()
due to conflicts with Vec::clear()
.
The clear()
method will be removed in a future release.sourceยงfn whenever(&self, value: Condition) -> Painted<&T>
fn whenever(&self, value: Condition) -> Painted<&T>
Conditionally enable styling based on whether the Condition
value
applies. Replaces any previous condition.
See the crate level docs for more details.
ยงExample
Enable styling painted
only when both stdout
and stderr
are TTYs:
use yansi::{Paint, Condition};
painted.red().on_yellow().whenever(Condition::STDOUTERR_ARE_TTY);