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org.jetbrains.kotlin.js.translate.test.JSTestGenerator.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2017 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.kotlin.js.translate.test
import org.jetbrains.kotlin.descriptors.*
import org.jetbrains.kotlin.js.backend.ast.*
import org.jetbrains.kotlin.js.translate.callTranslator.CallTranslator
import org.jetbrains.kotlin.js.translate.context.TranslationContext
import org.jetbrains.kotlin.js.translate.reference.ReferenceTranslator
import org.jetbrains.kotlin.name.ClassId
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.name.FqNameUnsafe
import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.psi.KtFile
import org.jetbrains.kotlin.resolve.DescriptorUtils
import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter
import org.jetbrains.kotlin.resolve.scopes.MemberScope
class JSTestGenerator(val context: TranslationContext) {
fun generateTestCalls(file: KtFile, fileMemberScope: List): JsStatement? {
val testsFunction = JsFunction(context.scope(), JsBlock(), "${file.virtualFilePath} file suite function")
fileMemberScope.forEach {
if (it is ClassDescriptor) {
generateTestFunctions(it, testsFunction)
}
}
if (!testsFunction.body.isEmpty) {
val suiteName = JsStringLiteral(file.packageFqName.asString())
return JsInvocation(suiteRef, suiteName, JsBooleanLiteral(false), testsFunction).makeStmt()
}
return null
}
private fun generateTestCalls(moduleDescriptor: ModuleDescriptor, packageName: FqName) {
val packageFunction = JsFunction(context.scope(), JsBlock(), "${packageName.asString()} package suite function")
for (packageDescriptor in moduleDescriptor.getPackage(packageName).fragments) {
if (DescriptorUtils.getContainingModule(packageDescriptor) !== moduleDescriptor) continue
packageDescriptor.getMemberScope().getContributedDescriptors(DescriptorKindFilter.CLASSIFIERS, MemberScope.ALL_NAME_FILTER).forEach {
if (it is ClassDescriptor) {
generateTestFunctions(it, packageFunction)
}
}
}
if (!packageFunction.body.isEmpty) {
val suiteName = JsStringLiteral(packageName.asString())
context.addTopLevelStatement(JsInvocation(suiteRef, suiteName, JsBooleanLiteral(false), packageFunction).makeStmt())
}
for (subpackageName in moduleDescriptor.getSubPackagesOf(packageName, MemberScope.ALL_NAME_FILTER)) {
generateTestCalls(moduleDescriptor, subpackageName)
}
}
private fun generateTestFunctions(classDescriptor: ClassDescriptor, parentFun: JsFunction) {
if (classDescriptor.modality === Modality.ABSTRACT || classDescriptor.isExpect) return
val suiteFunction = JsFunction(context.scope(), JsBlock(), "suite function")
val descriptors = classDescriptor.unsubstitutedMemberScope
.getContributedDescriptors(DescriptorKindFilter.FUNCTIONS, MemberScope.ALL_NAME_FILTER)
val beforeFunctions = descriptors.filterIsInstance().filter { it.isBefore }
val afterFunctions = descriptors.filterIsInstance().filter { it.isAfter }
descriptors.forEach {
when {
it is ClassDescriptor -> generateTestFunctions(it, suiteFunction)
it is FunctionDescriptor && it.isTest ->
generateCodeForTestMethod(it, beforeFunctions, afterFunctions, classDescriptor, suiteFunction)
}
}
if (!suiteFunction.body.isEmpty) {
val suiteName = JsStringLiteral(classDescriptor.name.toString())
parentFun.body.statements += JsInvocation(suiteRef, suiteName, JsBooleanLiteral(classDescriptor.isIgnored), suiteFunction).makeStmt()
}
}
private fun generateCodeForTestMethod(functionDescriptor: FunctionDescriptor,
beforeDescriptors: List,
afterDescriptors: List,
classDescriptor: ClassDescriptor,
parentFun: JsFunction) {
val functionToTest = generateTestFunction(functionDescriptor, beforeDescriptors, afterDescriptors, classDescriptor, parentFun.scope)
val testName = JsStringLiteral(functionDescriptor.name.toString())
parentFun.body.statements += JsInvocation(testRef, testName, JsBooleanLiteral(functionDescriptor.isIgnored), functionToTest).makeStmt()
}
private fun generateTestFunction(functionDescriptor: FunctionDescriptor,
beforeDescriptors: List,
afterDescriptors: List,
classDescriptor: ClassDescriptor,
scope: JsScope): JsFunction {
val functionToTest = JsFunction(scope, JsBlock(), "test function")
val innerContext = context.contextWithScope(functionToTest)
val classVal = innerContext.defineTemporary(classDescriptor.instance(innerContext))
fun FunctionDescriptor.buildCall() = CallTranslator.buildCall(context, this, emptyList(), classVal)
functionToTest.body.statements += beforeDescriptors.map { it.buildCall().makeStmt() }
if (afterDescriptors.isEmpty()) {
functionToTest.body.statements += JsReturn(functionDescriptor.buildCall())
return functionToTest
}
val declarationDescriptor: ClassifierDescriptor? = functionDescriptor.returnType?.constructor?.declarationDescriptor
val promiseClass = findPromise()
if (declarationDescriptor == promiseClass) {
val call = functionDescriptor.buildCall()
val finallyDescriptor = DescriptorUtils.getFunctionByName(promiseClass.unsubstitutedMemberScope, Name.identifier("finally"))
functionToTest.body.statements += JsReturn(
CallTranslator.buildCall(
context,
finallyDescriptor,
listOf(
JsFunction(
scope,
JsBlock(afterDescriptors.map { it.buildCall().makeStmt() }),
"function for after funs test"
)
),
call
)
)
return functionToTest
}
functionToTest.body.statements += JsTry(
JsBlock(JsReturn(functionDescriptor.buildCall())),
listOf(),
JsBlock(afterDescriptors.map { it.buildCall().makeStmt() })
)
return functionToTest
}
private fun ClassDescriptor.instance(context: TranslationContext): JsExpression {
return if (kind == ClassKind.OBJECT) {
ReferenceTranslator.translateAsValueReference(this, context)
}
else {
val args = if (isInner) listOf((containingDeclaration as ClassDescriptor).instance(context)) else emptyList()
JsNew(ReferenceTranslator.translateAsTypeReference(this, context), args)
}
}
fun findPromise(): ClassDescriptor =
context.currentModule.findClassAcrossModuleDependencies(ClassId.topLevel(promiseFqName))!!
private val suiteRef: JsExpression by lazy { findFunction("suite") }
private val testRef: JsExpression by lazy { findFunction("test") }
private fun findFunction(name: String): JsExpression {
val descriptor = DescriptorUtils.getFunctionByNameOrNull(
context.currentModule.getPackage(FqNameUnsafe("kotlin.test").toSafe()).memberScope,
Name.identifier(name)) ?: return JsNameRef(name, JsNameRef("Kotlin"))
return ReferenceTranslator.translateAsValueReference(descriptor, context)
}
private val FunctionDescriptor.isTest
get() = annotationFinder("Test", "kotlin.test")
private val DeclarationDescriptor.isIgnored
get() = annotationFinder("Ignore", "kotlin.test")
private val FunctionDescriptor.isBefore
get() = annotationFinder("BeforeTest", "kotlin.test")
private val FunctionDescriptor.isAfter
get() = annotationFinder("AfterTest", "kotlin.test")
private val promiseFqName = FqName("kotlin.js.Promise")
private fun DeclarationDescriptor.annotationFinder(shortName: String, vararg packages: String) = packages.any { packageName ->
annotations.hasAnnotation(FqName("$packageName.$shortName"))
}
}
