1 files changed, 50 insertions, 0 deletions
diff --git a/javaparser-symbol-solver-testing/src/test/java/com/github/javaparser/symbolsolver/Issue186.java b/javaparser-symbol-solver-testing/src/test/java/com/github/javaparser/symbolsolver/Issue186.java
new file mode 100644
index 000000000..2590e9ec5
--- /dev/null
+++ b/javaparser-symbol-solver-testing/src/test/java/com/github/javaparser/symbolsolver/Issue186.java
@@ -0,0 +1,50 @@
+package com.github.javaparser.symbolsolver;
+
+import com.github.javaparser.ParseException;
+import com.github.javaparser.ast.CompilationUnit;
+import com.github.javaparser.ast.body.ClassOrInterfaceDeclaration;
+import com.github.javaparser.ast.body.MethodDeclaration;
+import com.github.javaparser.ast.expr.Expression;
+import com.github.javaparser.ast.expr.LambdaExpr;
+import com.github.javaparser.ast.expr.MethodCallExpr;
+import com.github.javaparser.ast.stmt.ExpressionStmt;
+import com.github.javaparser.symbolsolver.javaparser.Navigator;
+import com.github.javaparser.symbolsolver.javaparsermodel.JavaParserFacade;
+import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;
+import com.github.javaparser.symbolsolver.resolution.AbstractResolutionTest;
+import com.github.javaparser.symbolsolver.resolution.typesolvers.ReflectionTypeSolver;
+import org.junit.Test;
+
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+
+public class Issue186 extends AbstractResolutionTest {
+
+    @Test
+    public void lambdaFlatMapIssue() {
+        CompilationUnit cu = parseSample("Issue186");
+        ClassOrInterfaceDeclaration clazz = Navigator.demandClass(cu, "JavaTest");
+        MethodDeclaration methodDeclaration = Navigator.demandMethod(clazz, "foo");
+        MethodCallExpr methodCallExpr = Navigator.findMethodCall(methodDeclaration, "flatMap").get();
+        TypeSolver typeSolver = new ReflectionTypeSolver();
+        JavaParserFacade javaParserFacade = JavaParserFacade.get(typeSolver);
+        assertEquals("java.util.stream.Stream<java.lang.String>", javaParserFacade.getType(methodCallExpr).describe());
+
+    }
+
+    @Test
+    public void lambdaPrimitivesIssue() {
+        CompilationUnit cu = parseSample("Issue186");
+        ClassOrInterfaceDeclaration clazz = Navigator.demandClass(cu, "JavaTest");
+        MethodDeclaration methodDeclaration = Navigator.demandMethod(clazz, "bar");
+        List<LambdaExpr> lambdas = methodDeclaration.findAll(LambdaExpr.class);
+        TypeSolver typeSolver = new ReflectionTypeSolver();
+        JavaParserFacade javaParserFacade = JavaParserFacade.get(typeSolver);
+        assertEquals("java.util.function.Predicate<? super java.lang.String>", javaParserFacade.getType(lambdas.get(0)).describe());
+        assertEquals("java.util.function.Function<? super java.lang.String, ? extends java.lang.Integer>", javaParserFacade.getType(lambdas.get(1)).describe());
+        assertEquals("java.util.function.Predicate<? super java.lang.Integer>", javaParserFacade.getType(lambdas.get(2)).describe());
+
+    }
+
+}