/*
 * Copyright 2010-2015 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.idea.completion.test

import com.intellij.codeInsight.lookup.LookupElement
import com.intellij.openapi.util.io.FileUtil
import org.jetbrains.kotlin.idea.caches.resolve.LibraryModificationTracker
import org.jetbrains.kotlin.idea.project.TargetPlatform
import org.jetbrains.kotlin.idea.test.JetLightCodeInsightFixtureTestCase
import java.io.File

public abstract class JetFixtureCompletionBaseTestCase : JetLightCodeInsightFixtureTestCase() {
    public abstract fun getPlatform(): TargetPlatform

    protected abstract fun complete(invocationCount: Int): Array<LookupElement>?

    protected open fun defaultInvocationCount(): Int = 0

    public open fun doTest(testPath: String) {
        setUpFixture(testPath)

        val fileText = FileUtil.loadFile(File(testPath), true)
        testCompletion(fileText, getPlatform(), { complete(it) }, defaultInvocationCount())
    }

    protected open fun setUpFixture(testPath: String) {
        //TODO: this is a hacky workaround for js second completion tests failing with PsiInvalidElementAccessException
        LibraryModificationTracker.getInstance(getProject()).incModificationCount()

        myFixture.configureByFile(testPath)
    }
}
