From f6b5d7935a60de399e3fd1b2da92f72c0f01b708 Mon Sep 17 00:00:00 2001
From: Tagir Valeev <tagir.valeev@jetbrains.com>
Date: Wed, 26 Mar 2025 11:10:20 +0100
Subject: [PATCH] [java-psi] One more test for lambda parameter type under
 ambiguous resolve

GitOrigin-RevId: 41a80dd4ce9f232d6e5cc273adc8f02dd1a01780
---
 .../newLambda/MultiResolveThreeFunctions.java   | 17 +++++++++++++++++
 .../lambda/NewLambdaHighlightingTest.java       |  1 +
 2 files changed, 18 insertions(+)
 create mode 100644 java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/MultiResolveThreeFunctions.java

diff --git a/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/MultiResolveThreeFunctions.java b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/MultiResolveThreeFunctions.java
new file mode 100644
index 000000000000..60e193446103
--- /dev/null
+++ b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/MultiResolveThreeFunctions.java
@@ -0,0 +1,17 @@
+import java.util.function.Function;
+import java.util.function.ToIntFunction;
+import java.util.function.ToLongFunction;
+import java.util.stream.IntStream;
+import java.util.stream.LongStream;
+
+interface Test {
+  default IntStream distinct2(Stream<String> s) {
+    return s.map<error descr="Ambiguous method call: both 'Stream.map(Function<? super String, ?>)' and 'Stream.map(ToIntFunction<? super String>)' match">(i -> i.length())</error>;
+  }
+}
+
+interface Stream<T> {
+  <R> Stream<R> map(Function<? super T, ? extends R> mapper);
+  IntStream map(ToIntFunction<? super T> mapper);
+  LongStream map(ToLongFunction<? super T> mapper);
+}
\ No newline at end of file
diff --git a/java/java-tests/testSrc/com/intellij/java/codeInsight/daemon/lambda/NewLambdaHighlightingTest.java b/java/java-tests/testSrc/com/intellij/java/codeInsight/daemon/lambda/NewLambdaHighlightingTest.java
index 478e2db395ee..25bb3522b22c 100644
--- a/java/java-tests/testSrc/com/intellij/java/codeInsight/daemon/lambda/NewLambdaHighlightingTest.java
+++ b/java/java-tests/testSrc/com/intellij/java/codeInsight/daemon/lambda/NewLambdaHighlightingTest.java
@@ -151,6 +151,7 @@ class NewLambdaHighlightingTest extends LightJavaCodeInsightFixtureTestCase5 {
   @Test void testLambdaWithExplicitTypeAndTargetTypeParameter() { doTest(); }
   @Test void testAmbiguousConstructorCallWithLambdaInside() { doTest(); }
   @Test void testMultiResolveSameFunction() {doTest();}
+  @Test void testMultiResolveThreeFunctions() {doTest();}
   @Test void testWrongTargetTypeDoNotReportIncompatibleTypeInside() {doTest();}
 
   @Override