Revert "Revert "[code vision] IDEA-308383: add tests""

This reverts commit 2431e8827ad5eebd3b291007fd08847bd4d0691d.

GitOrigin-RevId: f8eae4a8f86970e7184d12bf4f9b40a9cc3f725f

java/java-tests/testData/codeVision/addedExternalUsage/ExternalUsage.java

@@ -0,0 +1,6 @@
+class ExternalUsage {
+  void foo(){
+    new Test().test();
+    <caret>
+  }
+}

java/java-tests/testData/codeVision/addedExternalUsage/Test.java

@@ -0,0 +1,10 @@
+class Test {
+  void use() {
+    test();
+    test();
+  }
+
+  void test() {
+
+  }
+}

java/java-tests/testData/codeVision/addedLocalUsage/ExternalUsage.java

@@ -0,0 +1,5 @@
+class ExternalUsage {
+  void foo(){
+    new Test().test();
+  }
+}

java/java-tests/testData/codeVision/addedLocalUsage/Test.java

@@ -0,0 +1,11 @@
+class Test {
+  void use() {
+    test();
+    test();
+    <caret>
+  }
+
+  void test() {
+
+  }
+}

java/java-tests/testData/codeVision/changedClassName/ExternalUsage.java

@@ -0,0 +1,5 @@
+class ExternalUsage {
+  void foo(){
+    new Test().test();
+  }
+}

java/java-tests/testData/codeVision/changedClassName/Test.java

@@ -0,0 +1,10 @@
+class Test<caret> {
+  void use() {
+    test();
+    test();
+  }
+
+  void test() {
+
+  }
+}

java/java-tests/testData/codeVision/changedMethodName/ExternalUsage.java

@@ -0,0 +1,5 @@
+class ExternalUsage {
+  void foo(){
+    Test.test();
+  }
+}

java/java-tests/testData/codeVision/changedMethodName/Test.java

@@ -0,0 +1,10 @@
+class Test {
+  void use() {
+    test();
+    test();
+  }
+
+  public static void test<caret>() {
+
+  }
+}

java/java-tests/testSrc/com/intellij/java/codeInsight/codeVision/JavaCodeVisionCacheTest.kt

@@ -0,0 +1,85 @@
+// Copyright 2000-2022 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+package com.intellij.java.codeInsight.codeVision
+
+import com.intellij.JavaTestUtil
+import com.intellij.codeInsight.JavaCodeInsightTestCase
+import com.intellij.codeInsight.daemon.impl.UsagesCountManager
+import com.intellij.psi.JavaPsiFacade
+import com.intellij.psi.PsiDocumentManager
+import com.intellij.psi.PsiMember
+import com.intellij.psi.search.GlobalSearchScope
+
+class JavaCodeVisionCacheTest : JavaCodeInsightTestCase() {
+
+  override fun getTestDataPath(): String {
+    return JavaTestUtil.getJavaTestDataPath() + "/codeVision/"
+  }
+
+  fun testChangedMethodName() {
+    configureAndOpenLocalFile()
+    val testMember = findTestMember()
+    val initialUsages = countUsages(testMember)
+    require(initialUsages == 3)
+    typeAndCommit("random")
+    val currentUsages = countUsages(testMember)
+    require(currentUsages == 0)
+  }
+
+  fun testChangedClassName() {
+    configureAndOpenLocalFile()
+    val testMember = findTestMember()
+    val initialUsages = countUsages(testMember)
+    require(initialUsages == 3)
+    typeAndCommit("random")
+    val currentUsages = countUsages(testMember)
+    require(currentUsages == 2)
+  }
+
+  fun testAddedExternalUsage() {
+    configureAndOpenExternalFile()
+    val testMember = findTestMember()
+    val initialUsages = countUsages(testMember)
+    require(initialUsages == 3)
+    typeAndCommit("Test.test();")
+    val currentUsages = countUsages(testMember)
+    require(currentUsages == 4)
+  }
+
+  fun testAddedLocalUsage() {
+    configureAndOpenLocalFile()
+    val testMember = findTestMember()
+    val initialUsages = countUsages(testMember)
+    require(initialUsages == 3)
+    typeAndCommit("test();")
+    val currentUsages = countUsages(testMember)
+    require(currentUsages == 4)
+  }
+
+  private fun configureAndOpenLocalFile() {
+    configureByFiles(null, "${getTestDirectory()}/Test.java", "${getTestDirectory()}/ExternalUsage.java", )
+  }
+
+  private fun configureAndOpenExternalFile() {
+    configureByFiles(null, "${getTestDirectory()}/ExternalUsage.java", "${getTestDirectory()}/Test.java")
+  }
+
+  private fun getTestDirectory(): String = getTestName(true)
+
+  private fun findTestMember(): PsiMember {
+    val testClass = JavaPsiFacade.getInstance(project).findClass("Test", GlobalSearchScope.allScope(project))
+    val externalClass = JavaPsiFacade.getInstance(project).findClass("ExternalUsage", GlobalSearchScope.allScope(project))
+    require(externalClass != null)
+    val member: PsiMember? = testClass?.findMethodsByName("test", false)?.firstOrNull()
+    require(member != null)
+    return member
+  }
+
+  private fun countUsages(member: PsiMember): Int {
+    return UsagesCountManager.getInstance(project).countMemberUsages(member.containingFile, member)
+  }
+
+  private fun typeAndCommit(s: String) {
+    type(s)
+    PsiDocumentManager.getInstance(project).commitDocument(editor.document)
+  }
+}