@angular/core
Version:
Angular - the core framework
841 lines • 135 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { ResourceLoader } from '@angular/compiler';
import { ApplicationInitStatus, Compiler, COMPILER_OPTIONS, LOCALE_ID, ModuleWithComponentFactories, NgZone, resolveForwardRef, ɵcompileComponent as compileComponent, ɵcompileDirective as compileDirective, ɵcompileNgModuleDefs as compileNgModuleDefs, ɵcompilePipe as compilePipe, ɵDEFAULT_LOCALE_ID as DEFAULT_LOCALE_ID, ɵgetInjectableDef as getInjectableDef, ɵisEnvironmentProviders as isEnvironmentProviders, ɵNG_COMP_DEF as NG_COMP_DEF, ɵNG_DIR_DEF as NG_DIR_DEF, ɵNG_INJ_DEF as NG_INJ_DEF, ɵNG_MOD_DEF as NG_MOD_DEF, ɵNG_PIPE_DEF as NG_PIPE_DEF, ɵNgModuleFactory as R3NgModuleFactory, ɵpatchComponentDefWithScope as patchComponentDefWithScope, ɵRender3ComponentFactory as ComponentFactory, ɵRender3NgModuleRef as NgModuleRef, ɵsetLocaleId as setLocaleId, ɵtransitiveScopesFor as transitiveScopesFor } from '@angular/core';
import { clearResolutionOfComponentResourcesQueue, isComponentDefPendingResolution, resolveComponentResources, restoreComponentResolutionQueue } from '../../src/metadata/resource_loading';
import { generateStandaloneInDeclarationsError } from '../../src/render3/jit/module';
import { ComponentResolver, DirectiveResolver, NgModuleResolver, PipeResolver } from './resolvers';
var TestingModuleOverride;
(function (TestingModuleOverride) {
TestingModuleOverride[TestingModuleOverride["DECLARATION"] = 0] = "DECLARATION";
TestingModuleOverride[TestingModuleOverride["OVERRIDE_TEMPLATE"] = 1] = "OVERRIDE_TEMPLATE";
})(TestingModuleOverride || (TestingModuleOverride = {}));
function isTestingModuleOverride(value) {
return value === TestingModuleOverride.DECLARATION ||
value === TestingModuleOverride.OVERRIDE_TEMPLATE;
}
function assertNoStandaloneComponents(types, resolver, location) {
types.forEach(type => {
const component = resolver.resolve(type);
if (component && component.standalone) {
throw new Error(generateStandaloneInDeclarationsError(type, location));
}
});
}
export class TestBedCompiler {
constructor(platform, additionalModuleTypes) {
this.platform = platform;
this.additionalModuleTypes = additionalModuleTypes;
this.originalComponentResolutionQueue = null;
// Testing module configuration
this.declarations = [];
this.imports = [];
this.providers = [];
this.schemas = [];
// Queues of components/directives/pipes that should be recompiled.
this.pendingComponents = new Set();
this.pendingDirectives = new Set();
this.pendingPipes = new Set();
// Keep track of all components and directives, so we can patch Providers onto defs later.
this.seenComponents = new Set();
this.seenDirectives = new Set();
// Keep track of overridden modules, so that we can collect all affected ones in the module tree.
this.overriddenModules = new Set();
// Store resolved styles for Components that have template overrides present and `styleUrls`
// defined at the same time.
this.existingComponentStyles = new Map();
this.resolvers = initResolvers();
this.componentToModuleScope = new Map();
// Map that keeps initial version of component/directive/pipe defs in case
// we compile a Type again, thus overriding respective static fields. This is
// required to make sure we restore defs to their initial states between test runs.
// Note: one class may have multiple defs (for example: ɵmod and ɵinj in case of an
// NgModule), store all of them in a map.
this.initialNgDefs = new Map();
// Array that keeps cleanup operations for initial versions of component/directive/pipe/module
// defs in case TestBed makes changes to the originals.
this.defCleanupOps = [];
this._injector = null;
this.compilerProviders = null;
this.providerOverrides = [];
this.rootProviderOverrides = [];
// Overrides for injectables with `{providedIn: SomeModule}` need to be tracked and added to that
// module's provider list.
this.providerOverridesByModule = new Map();
this.providerOverridesByToken = new Map();
this.scopesWithOverriddenProviders = new Set();
this.testModuleRef = null;
class DynamicTestModule {
}
this.testModuleType = DynamicTestModule;
}
setCompilerProviders(providers) {
this.compilerProviders = providers;
this._injector = null;
}
configureTestingModule(moduleDef) {
// Enqueue any compilation tasks for the directly declared component.
if (moduleDef.declarations !== undefined) {
// Verify that there are no standalone components
assertNoStandaloneComponents(moduleDef.declarations, this.resolvers.component, '"TestBed.configureTestingModule" call');
this.queueTypeArray(moduleDef.declarations, TestingModuleOverride.DECLARATION);
this.declarations.push(...moduleDef.declarations);
}
// Enqueue any compilation tasks for imported modules.
if (moduleDef.imports !== undefined) {
this.queueTypesFromModulesArray(moduleDef.imports);
this.imports.push(...moduleDef.imports);
}
if (moduleDef.providers !== undefined) {
this.providers.push(...moduleDef.providers);
}
if (moduleDef.schemas !== undefined) {
this.schemas.push(...moduleDef.schemas);
}
}
overrideModule(ngModule, override) {
this.overriddenModules.add(ngModule);
// Compile the module right away.
this.resolvers.module.addOverride(ngModule, override);
const metadata = this.resolvers.module.resolve(ngModule);
if (metadata === null) {
throw invalidTypeError(ngModule.name, 'NgModule');
}
this.recompileNgModule(ngModule, metadata);
// At this point, the module has a valid module def (ɵmod), but the override may have introduced
// new declarations or imported modules. Ingest any possible new types and add them to the
// current queue.
this.queueTypesFromModulesArray([ngModule]);
}
overrideComponent(component, override) {
this.verifyNoStandaloneFlagOverrides(component, override);
this.resolvers.component.addOverride(component, override);
this.pendingComponents.add(component);
}
overrideDirective(directive, override) {
this.verifyNoStandaloneFlagOverrides(directive, override);
this.resolvers.directive.addOverride(directive, override);
this.pendingDirectives.add(directive);
}
overridePipe(pipe, override) {
this.verifyNoStandaloneFlagOverrides(pipe, override);
this.resolvers.pipe.addOverride(pipe, override);
this.pendingPipes.add(pipe);
}
verifyNoStandaloneFlagOverrides(type, override) {
if (override.add?.hasOwnProperty('standalone') || override.set?.hasOwnProperty('standalone') ||
override.remove?.hasOwnProperty('standalone')) {
throw new Error(`An override for the ${type.name} class has the \`standalone\` flag. ` +
`Changing the \`standalone\` flag via TestBed overrides is not supported.`);
}
}
overrideProvider(token, provider) {
let providerDef;
if (provider.useFactory !== undefined) {
providerDef = {
provide: token,
useFactory: provider.useFactory,
deps: provider.deps || [],
multi: provider.multi
};
}
else if (provider.useValue !== undefined) {
providerDef = { provide: token, useValue: provider.useValue, multi: provider.multi };
}
else {
providerDef = { provide: token };
}
const injectableDef = typeof token !== 'string' ? getInjectableDef(token) : null;
const providedIn = injectableDef === null ? null : resolveForwardRef(injectableDef.providedIn);
const overridesBucket = providedIn === 'root' ? this.rootProviderOverrides : this.providerOverrides;
overridesBucket.push(providerDef);
// Keep overrides grouped by token as well for fast lookups using token
this.providerOverridesByToken.set(token, providerDef);
if (injectableDef !== null && providedIn !== null && typeof providedIn !== 'string') {
const existingOverrides = this.providerOverridesByModule.get(providedIn);
if (existingOverrides !== undefined) {
existingOverrides.push(providerDef);
}
else {
this.providerOverridesByModule.set(providedIn, [providerDef]);
}
}
}
overrideTemplateUsingTestingModule(type, template) {
const def = type[NG_COMP_DEF];
const hasStyleUrls = () => {
const metadata = this.resolvers.component.resolve(type);
return !!metadata.styleUrls && metadata.styleUrls.length > 0;
};
const overrideStyleUrls = !!def && !isComponentDefPendingResolution(type) && hasStyleUrls();
// In Ivy, compiling a component does not require knowing the module providing the
// component's scope, so overrideTemplateUsingTestingModule can be implemented purely via
// overrideComponent. Important: overriding template requires full Component re-compilation,
// which may fail in case styleUrls are also present (thus Component is considered as required
// resolution). In order to avoid this, we preemptively set styleUrls to an empty array,
// preserve current styles available on Component def and restore styles back once compilation
// is complete.
const override = overrideStyleUrls ? { template, styles: [], styleUrls: [] } : { template };
this.overrideComponent(type, { set: override });
if (overrideStyleUrls && def.styles && def.styles.length > 0) {
this.existingComponentStyles.set(type, def.styles);
}
// Set the component's scope to be the testing module.
this.componentToModuleScope.set(type, TestingModuleOverride.OVERRIDE_TEMPLATE);
}
async compileComponents() {
this.clearComponentResolutionQueue();
// Run compilers for all queued types.
let needsAsyncResources = this.compileTypesSync();
// compileComponents() should not be async unless it needs to be.
if (needsAsyncResources) {
let resourceLoader;
let resolver = (url) => {
if (!resourceLoader) {
resourceLoader = this.injector.get(ResourceLoader);
}
return Promise.resolve(resourceLoader.get(url));
};
await resolveComponentResources(resolver);
}
}
finalize() {
// One last compile
this.compileTypesSync();
// Create the testing module itself.
this.compileTestModule();
this.applyTransitiveScopes();
this.applyProviderOverrides();
// Patch previously stored `styles` Component values (taken from ɵcmp), in case these
// Components have `styleUrls` fields defined and template override was requested.
this.patchComponentsWithExistingStyles();
// Clear the componentToModuleScope map, so that future compilations don't reset the scope of
// every component.
this.componentToModuleScope.clear();
const parentInjector = this.platform.injector;
this.testModuleRef = new NgModuleRef(this.testModuleType, parentInjector);
// ApplicationInitStatus.runInitializers() is marked @internal to core.
// Cast it to any before accessing it.
this.testModuleRef.injector.get(ApplicationInitStatus).runInitializers();
// Set locale ID after running app initializers, since locale information might be updated while
// running initializers. This is also consistent with the execution order while bootstrapping an
// app (see `packages/core/src/application_ref.ts` file).
const localeId = this.testModuleRef.injector.get(LOCALE_ID, DEFAULT_LOCALE_ID);
setLocaleId(localeId);
return this.testModuleRef;
}
/**
* @internal
*/
_compileNgModuleSync(moduleType) {
this.queueTypesFromModulesArray([moduleType]);
this.compileTypesSync();
this.applyProviderOverrides();
this.applyProviderOverridesInScope(moduleType);
this.applyTransitiveScopes();
}
/**
* @internal
*/
async _compileNgModuleAsync(moduleType) {
this.queueTypesFromModulesArray([moduleType]);
await this.compileComponents();
this.applyProviderOverrides();
this.applyProviderOverridesInScope(moduleType);
this.applyTransitiveScopes();
}
/**
* @internal
*/
_getModuleResolver() {
return this.resolvers.module;
}
/**
* @internal
*/
_getComponentFactories(moduleType) {
return maybeUnwrapFn(moduleType.ɵmod.declarations).reduce((factories, declaration) => {
const componentDef = declaration.ɵcmp;
componentDef && factories.push(new ComponentFactory(componentDef, this.testModuleRef));
return factories;
}, []);
}
compileTypesSync() {
// Compile all queued components, directives, pipes.
let needsAsyncResources = false;
this.pendingComponents.forEach(declaration => {
needsAsyncResources = needsAsyncResources || isComponentDefPendingResolution(declaration);
const metadata = this.resolvers.component.resolve(declaration);
if (metadata === null) {
throw invalidTypeError(declaration.name, 'Component');
}
this.maybeStoreNgDef(NG_COMP_DEF, declaration);
compileComponent(declaration, metadata);
});
this.pendingComponents.clear();
this.pendingDirectives.forEach(declaration => {
const metadata = this.resolvers.directive.resolve(declaration);
if (metadata === null) {
throw invalidTypeError(declaration.name, 'Directive');
}
this.maybeStoreNgDef(NG_DIR_DEF, declaration);
compileDirective(declaration, metadata);
});
this.pendingDirectives.clear();
this.pendingPipes.forEach(declaration => {
const metadata = this.resolvers.pipe.resolve(declaration);
if (metadata === null) {
throw invalidTypeError(declaration.name, 'Pipe');
}
this.maybeStoreNgDef(NG_PIPE_DEF, declaration);
compilePipe(declaration, metadata);
});
this.pendingPipes.clear();
return needsAsyncResources;
}
applyTransitiveScopes() {
if (this.overriddenModules.size > 0) {
// Module overrides (via `TestBed.overrideModule`) might affect scopes that were previously
// calculated and stored in `transitiveCompileScopes`. If module overrides are present,
// collect all affected modules and reset scopes to force their re-calculation.
const testingModuleDef = this.testModuleType[NG_MOD_DEF];
const affectedModules = this.collectModulesAffectedByOverrides(testingModuleDef.imports);
if (affectedModules.size > 0) {
affectedModules.forEach(moduleType => {
this.storeFieldOfDefOnType(moduleType, NG_MOD_DEF, 'transitiveCompileScopes');
moduleType[NG_MOD_DEF].transitiveCompileScopes = null;
});
}
}
const moduleToScope = new Map();
const getScopeOfModule = (moduleType) => {
if (!moduleToScope.has(moduleType)) {
const isTestingModule = isTestingModuleOverride(moduleType);
const realType = isTestingModule ? this.testModuleType : moduleType;
moduleToScope.set(moduleType, transitiveScopesFor(realType));
}
return moduleToScope.get(moduleType);
};
this.componentToModuleScope.forEach((moduleType, componentType) => {
const moduleScope = getScopeOfModule(moduleType);
this.storeFieldOfDefOnType(componentType, NG_COMP_DEF, 'directiveDefs');
this.storeFieldOfDefOnType(componentType, NG_COMP_DEF, 'pipeDefs');
// `tView` that is stored on component def contains information about directives and pipes
// that are in the scope of this component. Patching component scope will cause `tView` to be
// changed. Store original `tView` before patching scope, so the `tView` (including scope
// information) is restored back to its previous/original state before running next test.
this.storeFieldOfDefOnType(componentType, NG_COMP_DEF, 'tView');
patchComponentDefWithScope(componentType.ɵcmp, moduleScope);
});
this.componentToModuleScope.clear();
}
applyProviderOverrides() {
const maybeApplyOverrides = (field) => (type) => {
const resolver = field === NG_COMP_DEF ? this.resolvers.component : this.resolvers.directive;
const metadata = resolver.resolve(type);
if (this.hasProviderOverrides(metadata.providers)) {
this.patchDefWithProviderOverrides(type, field);
}
};
this.seenComponents.forEach(maybeApplyOverrides(NG_COMP_DEF));
this.seenDirectives.forEach(maybeApplyOverrides(NG_DIR_DEF));
this.seenComponents.clear();
this.seenDirectives.clear();
}
/**
* Applies provider overrides to a given type (either an NgModule or a standalone component)
* and all imported NgModules and standalone components recursively.
*/
applyProviderOverridesInScope(type) {
const hasScope = isStandaloneComponent(type) || isNgModule(type);
// The function can be re-entered recursively while inspecting dependencies
// of an NgModule or a standalone component. Exit early if we come across a
// type that can not have a scope (directive or pipe) or the type is already
// processed earlier.
if (!hasScope || this.scopesWithOverriddenProviders.has(type)) {
return;
}
this.scopesWithOverriddenProviders.add(type);
// NOTE: the line below triggers JIT compilation of the module injector,
// which also invokes verification of the NgModule semantics, which produces
// detailed error messages. The fact that the code relies on this line being
// present here is suspicious and should be refactored in a way that the line
// below can be moved (for ex. after an early exit check below).
const injectorDef = type[NG_INJ_DEF];
// No provider overrides, exit early.
if (this.providerOverridesByToken.size === 0)
return;
if (isStandaloneComponent(type)) {
// Visit all component dependencies and override providers there.
const def = getComponentDef(type);
const dependencies = maybeUnwrapFn(def.dependencies ?? []);
for (const dependency of dependencies) {
this.applyProviderOverridesInScope(dependency);
}
}
else {
const providers = [
...injectorDef.providers,
...(this.providerOverridesByModule.get(type) || [])
];
if (this.hasProviderOverrides(providers)) {
this.maybeStoreNgDef(NG_INJ_DEF, type);
this.storeFieldOfDefOnType(type, NG_INJ_DEF, 'providers');
injectorDef.providers = this.getOverriddenProviders(providers);
}
// Apply provider overrides to imported modules recursively
const moduleDef = type[NG_MOD_DEF];
const imports = maybeUnwrapFn(moduleDef.imports);
for (const importedModule of imports) {
this.applyProviderOverridesInScope(importedModule);
}
// Also override the providers on any ModuleWithProviders imports since those don't appear in
// the moduleDef.
for (const importedModule of flatten(injectorDef.imports)) {
if (isModuleWithProviders(importedModule)) {
this.defCleanupOps.push({
object: importedModule,
fieldName: 'providers',
originalValue: importedModule.providers
});
importedModule.providers = this.getOverriddenProviders(importedModule.providers);
}
}
}
}
patchComponentsWithExistingStyles() {
this.existingComponentStyles.forEach((styles, type) => type[NG_COMP_DEF].styles = styles);
this.existingComponentStyles.clear();
}
queueTypeArray(arr, moduleType) {
for (const value of arr) {
if (Array.isArray(value)) {
this.queueTypeArray(value, moduleType);
}
else {
this.queueType(value, moduleType);
}
}
}
recompileNgModule(ngModule, metadata) {
// Cache the initial ngModuleDef as it will be overwritten.
this.maybeStoreNgDef(NG_MOD_DEF, ngModule);
this.maybeStoreNgDef(NG_INJ_DEF, ngModule);
compileNgModuleDefs(ngModule, metadata);
}
queueType(type, moduleType) {
const component = this.resolvers.component.resolve(type);
if (component) {
// Check whether a give Type has respective NG def (ɵcmp) and compile if def is
// missing. That might happen in case a class without any Angular decorators extends another
// class where Component/Directive/Pipe decorator is defined.
if (isComponentDefPendingResolution(type) || !type.hasOwnProperty(NG_COMP_DEF)) {
this.pendingComponents.add(type);
}
this.seenComponents.add(type);
// Keep track of the module which declares this component, so later the component's scope
// can be set correctly. If the component has already been recorded here, then one of several
// cases is true:
// * the module containing the component was imported multiple times (common).
// * the component is declared in multiple modules (which is an error).
// * the component was in 'declarations' of the testing module, and also in an imported module
// in which case the module scope will be TestingModuleOverride.DECLARATION.
// * overrideTemplateUsingTestingModule was called for the component in which case the module
// scope will be TestingModuleOverride.OVERRIDE_TEMPLATE.
//
// If the component was previously in the testing module's 'declarations' (meaning the
// current value is TestingModuleOverride.DECLARATION), then `moduleType` is the component's
// real module, which was imported. This pattern is understood to mean that the component
// should use its original scope, but that the testing module should also contain the
// component in its scope.
//
// Note: standalone components have no associated NgModule, so the `moduleType` can be `null`.
if (moduleType !== null &&
(!this.componentToModuleScope.has(type) ||
this.componentToModuleScope.get(type) === TestingModuleOverride.DECLARATION)) {
this.componentToModuleScope.set(type, moduleType);
}
return;
}
const directive = this.resolvers.directive.resolve(type);
if (directive) {
if (!type.hasOwnProperty(NG_DIR_DEF)) {
this.pendingDirectives.add(type);
}
this.seenDirectives.add(type);
return;
}
const pipe = this.resolvers.pipe.resolve(type);
if (pipe && !type.hasOwnProperty(NG_PIPE_DEF)) {
this.pendingPipes.add(type);
return;
}
}
queueTypesFromModulesArray(arr) {
// Because we may encounter the same NgModule while processing the imports and exports of an
// NgModule tree, we cache them in this set so we can skip ones that have already been seen
// encountered. In some test setups, this caching resulted in 10X runtime improvement.
const processedNgModuleDefs = new Set();
const queueTypesFromModulesArrayRecur = (arr) => {
for (const value of arr) {
if (Array.isArray(value)) {
queueTypesFromModulesArrayRecur(value);
}
else if (hasNgModuleDef(value)) {
const def = value.ɵmod;
if (processedNgModuleDefs.has(def)) {
continue;
}
processedNgModuleDefs.add(def);
// Look through declarations, imports, and exports, and queue
// everything found there.
this.queueTypeArray(maybeUnwrapFn(def.declarations), value);
queueTypesFromModulesArrayRecur(maybeUnwrapFn(def.imports));
queueTypesFromModulesArrayRecur(maybeUnwrapFn(def.exports));
}
else if (isModuleWithProviders(value)) {
queueTypesFromModulesArrayRecur([value.ngModule]);
}
else if (isStandaloneComponent(value)) {
this.queueType(value, null);
const def = getComponentDef(value);
const dependencies = maybeUnwrapFn(def.dependencies ?? []);
dependencies.forEach((dependency) => {
// Note: in AOT, the `dependencies` might also contain regular
// (NgModule-based) Component, Directive and Pipes, so we handle
// them separately and proceed with recursive process for standalone
// Components and NgModules only.
if (isStandaloneComponent(dependency) || hasNgModuleDef(dependency)) {
queueTypesFromModulesArrayRecur([dependency]);
}
else {
this.queueType(dependency, null);
}
});
}
}
};
queueTypesFromModulesArrayRecur(arr);
}
// When module overrides (via `TestBed.overrideModule`) are present, it might affect all modules
// that import (even transitively) an overridden one. For all affected modules we need to
// recalculate their scopes for a given test run and restore original scopes at the end. The goal
// of this function is to collect all affected modules in a set for further processing. Example:
// if we have the following module hierarchy: A -> B -> C (where `->` means `imports`) and module
// `C` is overridden, we consider `A` and `B` as affected, since their scopes might become
// invalidated with the override.
collectModulesAffectedByOverrides(arr) {
const seenModules = new Set();
const affectedModules = new Set();
const calcAffectedModulesRecur = (arr, path) => {
for (const value of arr) {
if (Array.isArray(value)) {
// If the value is an array, just flatten it (by invoking this function recursively),
// keeping "path" the same.
calcAffectedModulesRecur(value, path);
}
else if (hasNgModuleDef(value)) {
if (seenModules.has(value)) {
// If we've seen this module before and it's included into "affected modules" list, mark
// the whole path that leads to that module as affected, but do not descend into its
// imports, since we already examined them before.
if (affectedModules.has(value)) {
path.forEach(item => affectedModules.add(item));
}
continue;
}
seenModules.add(value);
if (this.overriddenModules.has(value)) {
path.forEach(item => affectedModules.add(item));
}
// Examine module imports recursively to look for overridden modules.
const moduleDef = value[NG_MOD_DEF];
calcAffectedModulesRecur(maybeUnwrapFn(moduleDef.imports), path.concat(value));
}
}
};
calcAffectedModulesRecur(arr, []);
return affectedModules;
}
/**
* Preserve an original def (such as ɵmod, ɵinj, etc) before applying an override.
* Note: one class may have multiple defs (for example: ɵmod and ɵinj in case of
* an NgModule). If there is a def in a set already, don't override it, since
* an original one should be restored at the end of a test.
*/
maybeStoreNgDef(prop, type) {
if (!this.initialNgDefs.has(type)) {
this.initialNgDefs.set(type, new Map());
}
const currentDefs = this.initialNgDefs.get(type);
if (!currentDefs.has(prop)) {
const currentDef = Object.getOwnPropertyDescriptor(type, prop);
currentDefs.set(prop, currentDef);
}
}
storeFieldOfDefOnType(type, defField, fieldName) {
const def = type[defField];
const originalValue = def[fieldName];
this.defCleanupOps.push({ object: def, fieldName, originalValue });
}
/**
* Clears current components resolution queue, but stores the state of the queue, so we can
* restore it later. Clearing the queue is required before we try to compile components (via
* `TestBed.compileComponents`), so that component defs are in sync with the resolution queue.
*/
clearComponentResolutionQueue() {
if (this.originalComponentResolutionQueue === null) {
this.originalComponentResolutionQueue = new Map();
}
clearResolutionOfComponentResourcesQueue().forEach((value, key) => this.originalComponentResolutionQueue.set(key, value));
}
/*
* Restores component resolution queue to the previously saved state. This operation is performed
* as a part of restoring the state after completion of the current set of tests (that might
* potentially mutate the state).
*/
restoreComponentResolutionQueue() {
if (this.originalComponentResolutionQueue !== null) {
restoreComponentResolutionQueue(this.originalComponentResolutionQueue);
this.originalComponentResolutionQueue = null;
}
}
restoreOriginalState() {
// Process cleanup ops in reverse order so the field's original value is restored correctly (in
// case there were multiple overrides for the same field).
forEachRight(this.defCleanupOps, (op) => {
op.object[op.fieldName] = op.originalValue;
});
// Restore initial component/directive/pipe defs
this.initialNgDefs.forEach((defs, type) => {
defs.forEach((descriptor, prop) => {
if (!descriptor) {
// Delete operations are generally undesirable since they have performance
// implications on objects they were applied to. In this particular case, situations
// where this code is invoked should be quite rare to cause any noticeable impact,
// since it's applied only to some test cases (for example when class with no
// annotations extends some @Component) when we need to clear 'ɵcmp' field on a given
// class to restore its original state (before applying overrides and running tests).
delete type[prop];
}
else {
Object.defineProperty(type, prop, descriptor);
}
});
});
this.initialNgDefs.clear();
this.scopesWithOverriddenProviders.clear();
this.restoreComponentResolutionQueue();
// Restore the locale ID to the default value, this shouldn't be necessary but we never know
setLocaleId(DEFAULT_LOCALE_ID);
}
compileTestModule() {
class RootScopeModule {
}
compileNgModuleDefs(RootScopeModule, {
providers: [...this.rootProviderOverrides],
});
const ngZone = new NgZone({ enableLongStackTrace: true });
const providers = [
{ provide: NgZone, useValue: ngZone },
{ provide: Compiler, useFactory: () => new R3TestCompiler(this) },
...this.providers,
...this.providerOverrides,
];
const imports = [RootScopeModule, this.additionalModuleTypes, this.imports || []];
// clang-format off
compileNgModuleDefs(this.testModuleType, {
declarations: this.declarations,
imports,
schemas: this.schemas,
providers,
}, /* allowDuplicateDeclarationsInRoot */ true);
// clang-format on
this.applyProviderOverridesInScope(this.testModuleType);
}
get injector() {
if (this._injector !== null) {
return this._injector;
}
const providers = [];
const compilerOptions = this.platform.injector.get(COMPILER_OPTIONS);
compilerOptions.forEach(opts => {
if (opts.providers) {
providers.push(opts.providers);
}
});
if (this.compilerProviders !== null) {
providers.push(...this.compilerProviders);
}
// TODO(ocombe): make this work with an Injector directly instead of creating a module for it
class CompilerModule {
}
compileNgModuleDefs(CompilerModule, { providers });
const CompilerModuleFactory = new R3NgModuleFactory(CompilerModule);
this._injector = CompilerModuleFactory.create(this.platform.injector).injector;
return this._injector;
}
// get overrides for a specific provider (if any)
getSingleProviderOverrides(provider) {
const token = getProviderToken(provider);
return this.providerOverridesByToken.get(token) || null;
}
getProviderOverrides(providers) {
if (!providers || !providers.length || this.providerOverridesByToken.size === 0)
return [];
// There are two flattening operations here. The inner flattenProviders() operates on the
// metadata's providers and applies a mapping function which retrieves overrides for each
// incoming provider. The outer flatten() then flattens the produced overrides array. If this is
// not done, the array can contain other empty arrays (e.g. `[[], []]`) which leak into the
// providers array and contaminate any error messages that might be generated.
return flatten(flattenProviders(providers, (provider) => this.getSingleProviderOverrides(provider) || []));
}
getOverriddenProviders(providers) {
if (!providers || !providers.length || this.providerOverridesByToken.size === 0)
return [];
const flattenedProviders = flattenProviders(providers);
const overrides = this.getProviderOverrides(flattenedProviders);
const overriddenProviders = [...flattenedProviders, ...overrides];
const final = [];
const seenOverriddenProviders = new Set();
// We iterate through the list of providers in reverse order to make sure provider overrides
// take precedence over the values defined in provider list. We also filter out all providers
// that have overrides, keeping overridden values only. This is needed, since presence of a
// provider with `ngOnDestroy` hook will cause this hook to be registered and invoked later.
forEachRight(overriddenProviders, (provider) => {
const token = getProviderToken(provider);
if (this.providerOverridesByToken.has(token)) {
if (!seenOverriddenProviders.has(token)) {
seenOverriddenProviders.add(token);
// Treat all overridden providers as `{multi: false}` (even if it's a multi-provider) to
// make sure that provided override takes highest precedence and is not combined with
// other instances of the same multi provider.
final.unshift({ ...provider, multi: false });
}
}
else {
final.unshift(provider);
}
});
return final;
}
hasProviderOverrides(providers) {
return this.getProviderOverrides(providers).length > 0;
}
patchDefWithProviderOverrides(declaration, field) {
const def = declaration[field];
if (def && def.providersResolver) {
this.maybeStoreNgDef(field, declaration);
const resolver = def.providersResolver;
const processProvidersFn = (providers) => this.getOverriddenProviders(providers);
this.storeFieldOfDefOnType(declaration, field, 'providersResolver');
def.providersResolver = (ngDef) => resolver(ngDef, processProvidersFn);
}
}
}
function initResolvers() {
return {
module: new NgModuleResolver(),
component: new ComponentResolver(),
directive: new DirectiveResolver(),
pipe: new PipeResolver()
};
}
function isStandaloneComponent(value) {
const def = getComponentDef(value);
return !!def?.standalone;
}
function getComponentDef(value) {
return value.ɵcmp ?? null;
}
function hasNgModuleDef(value) {
return value.hasOwnProperty('ɵmod');
}
function isNgModule(value) {
return hasNgModuleDef(value);
}
function maybeUnwrapFn(maybeFn) {
return maybeFn instanceof Function ? maybeFn() : maybeFn;
}
function flatten(values) {
const out = [];
values.forEach(value => {
if (Array.isArray(value)) {
out.push(...flatten(value));
}
else {
out.push(value);
}
});
return out;
}
function identityFn(value) {
return value;
}
function flattenProviders(providers, mapFn = identityFn) {
const out = [];
for (let provider of providers) {
if (isEnvironmentProviders(provider)) {
provider = provider.ɵproviders;
}
if (Array.isArray(provider)) {
out.push(...flattenProviders(provider, mapFn));
}
else {
out.push(mapFn(provider));
}
}
return out;
}
function getProviderField(provider, field) {
return provider && typeof provider === 'object' && provider[field];
}
function getProviderToken(provider) {
return getProviderField(provider, 'provide') || provider;
}
function isModuleWithProviders(value) {
return value.hasOwnProperty('ngModule');
}
function forEachRight(values, fn) {
for (let idx = values.length - 1; idx >= 0; idx--) {
fn(values[idx], idx);
}
}
function invalidTypeError(name, expectedType) {
return new Error(`${name} class doesn't have @${expectedType} decorator or is missing metadata.`);
}
class R3TestCompiler {
constructor(testBed) {
this.testBed = testBed;
}
compileModuleSync(moduleType) {
this.testBed._compileNgModuleSync(moduleType);
return new R3NgModuleFactory(moduleType);
}
async compileModuleAsync(moduleType) {
await this.testBed._compileNgModuleAsync(moduleType);
return new R3NgModuleFactory(moduleType);
}
compileModuleAndAllComponentsSync(moduleType) {
const ngModuleFactory = this.compileModuleSync(moduleType);
const componentFactories = this.testBed._getComponentFactories(moduleType);
return new ModuleWithComponentFactories(ngModuleFactory, componentFactories);
}
async compileModuleAndAllComponentsAsync(moduleType) {
const ngModuleFactory = await this.compileModuleAsync(moduleType);
const componentFactories = this.testBed._getComponentFactories(moduleType);
return new ModuleWithComponentFactories(ngModuleFactory, componentFactories);
}
clearCache() { }
clearCacheFor(type) { }
getModuleId(moduleType) {
const meta = this.testBed._getModuleResolver().resolve(moduleType);
return meta && meta.id || undefined;
}
}
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