Add test to reproduce EA-1732880

diff --git a/plugins/stream-debugger/test/com/intellij/debugger/streams/chain/LambdaToAnonymousTransformTest.java b/plugins/stream-debugger/test/com/intellij/debugger/streams/chain/LambdaToAnonymousTransformTest.java
new file mode 100644 (file)
index 0000000..4a21603
--- /dev/null
+++ b/plugins/stream-debugger/test/com/intellij/debugger/streams/chain/LambdaToAnonymousTransformTest.java
@@ -0,0 +1,43 @@
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+package com.intellij.debugger.streams.chain;
+
+import com.intellij.debugger.impl.DebuggerUtilsEx;
+import com.intellij.debugger.streams.lib.impl.StandardLibrarySupport;
+import com.intellij.debugger.streams.psi.impl.JavaChainTransformerImpl;
+import com.intellij.debugger.streams.psi.impl.JavaStreamChainBuilder;
+import com.intellij.debugger.streams.trace.dsl.impl.DslImpl;
+import com.intellij.debugger.streams.trace.dsl.impl.java.JavaStatementFactory;
+import com.intellij.debugger.streams.trace.impl.JavaTraceExpressionBuilder;
+import com.intellij.debugger.streams.wrapper.StreamChain;
+import com.intellij.openapi.application.ApplicationManager;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiFile;
+import com.intellij.testFramework.LightCodeInsightTestCase;
+
+import java.util.List;
+
+/**
+ * @author Vitaliy.Bibaev
+ */
+public class LambdaToAnonymousTransformTest extends LightCodeInsightTestCase {
+  public void testPsiFileException() {
+    ApplicationManager.getApplication().runWriteAction(() -> {
+      configureFromFileText("Main.java", "import java.util.stream.Stream;\n" +
+                                         "\n" +
+                                         "public class Main {\n" +
+                                         "  public static void main(String[] args) {\n" +
+                                         "    <caret>Stream.of(1,2,3).map(x -> x * x ).filter(x -> x % 2 == 1).toArray();\n" +
+                                         "  }\n" +
+                                         "}\n", true);
+      final PsiFile file = getFile();
+      final int offset = getEditor().getCaretModel().getCurrentCaret().getOffset();
+      final PsiElement elementAtCaret = DebuggerUtilsEx.findElementAt(file, offset);
+      final JavaStreamChainBuilder builder = new JavaStreamChainBuilder(new JavaChainTransformerImpl(), "java.util.stream");
+      final List<StreamChain> chains = builder.build(elementAtCaret);
+      assertEquals(1, chains.size());
+      final JavaTraceExpressionBuilder expressionBuilder = new JavaTraceExpressionBuilder(getProject(), new StandardLibrarySupport()
+        .createHandlerFactory(new DslImpl(new JavaStatementFactory())));
+      expressionBuilder.createTraceExpression(chains.get(0));
+    });
+  }
+}