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package com.intellij.psi;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.roots.ex.ProjectRootManagerEx;
import com.intellij.openapi.util.EmptyRunnable;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.testFramework.LightVirtualFile;
import com.intellij.testFramework.PlatformTestCase;
import com.intellij.testFramework.PlatformTestUtil;
import com.intellij.testFramework.PsiTestCase;
import com.intellij.psi.search.GlobalSearchScope;
@PlatformTestCase.WrapInCommand
public class CodeFragmentsTest extends PsiTestCase{
public void testAddImport() throws Exception {
PsiCodeFragment fragment = JavaCodeFragmentFactory.getInstance(myProject).createExpressionCodeFragment("AAA.foo()", null, null, false);
PsiClass arrayListClass = myJavaFacade.findClass("java.util.ArrayList", GlobalSearchScope.allScope(getProject()));
PsiReference ref = fragment.findReferenceAt(0);
ref.bindToElement(arrayListClass);
assertEquals("ArrayList.foo()", fragment.getText());
}
public void testDontLoseDocument() {
PsiExpressionCodeFragment fragment = JavaCodeFragmentFactory.getInstance(myProject).createExpressionCodeFragment("a", null, null, true);
Document document = PsiDocumentManager.getInstance(myProject).getDocument(fragment);
document.insertString(1, "b");
PsiDocumentManager.getInstance(myProject).commitAllDocuments();
assertEquals("ab", fragment.getText());
assertEquals("ab", fragment.getExpression().getText());
//noinspection UnusedAssignment
document = null;
PlatformTestUtil.tryGcSoftlyReachableObjects();
assertEquals("ab", PsiDocumentManager.getInstance(myProject).getDocument(fragment).getText());
}
public void testDontRecreateFragmentPsi() {
PsiExpressionCodeFragment fragment = JavaCodeFragmentFactory.getInstance(myProject).createExpressionCodeFragment("a", null, null, true);
VirtualFile file = fragment.getViewProvider().getVirtualFile();
assertInstanceOf(file, LightVirtualFile.class);
ProjectRootManagerEx.getInstanceEx(getProject()).makeRootsChange(EmptyRunnable.getInstance(), false, true);
assertSame(fragment, PsiManager.getInstance(myProject).findFile(file));
assertTrue(fragment.isValid());
}
}
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