MethodReturnTypeFix: updated fix to change method return type based on return statements in method body (IDEA-216275)

GitOrigin-RevId: e97990950039123c8c41921a71342b8ed60afdee

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/afterInvalidReturnElementMultipleReturns.java

@@ -0,0 +1,11 @@
+// "Make 'm' return 'java.util.AbstractList<java.lang.Object>' or predecessor" "true"
+import java.util.*;
+
+class Test {
+
+  AbstractList<Object> m(boolean b) {
+    if (b) return new ArrayList<>();
+    return new LinkedList<>();
+  }
+
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/afterInvalidReturnElementNullableReturn.java

@@ -0,0 +1,10 @@
+// "Make 'm' return 'java.lang.Integer' or predecessor" "true"
+
+class Test {
+
+  Integer m(boolean b) {
+    if (b) return null;
+    return 42;
+  }
+
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/afterInvalidReturnElementPrimitiveReturn.java

@@ -0,0 +1,9 @@
+// "Make 'm' return 'int'" "true"
+
+class Test {
+
+  int m() {
+    return 42;
+  }
+
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/afterInvalidReturnElementVoidReturn.java

@@ -0,0 +1,8 @@
+// "Make 'm' return 'void'" "true"
+
+class Test {
+
+  void m() {
+  }
+
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/afterNoReturnElementMultipleReturns.java

@@ -0,0 +1,9 @@
+// "Make 'm' return 'double'" "true"
+class Test {
+
+  double m(boolean b) {
+    if (b) return 42;
+    return 10.0;
+  }
+
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/afterNullTypeReturnFromVoid.java

@@ -2,7 +2,7 @@
 
 class Test {
 
-  <caret><selection>Object</selection> foo() {
+  Object foo() {
     return null;
   }
 }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/beforeInvalidReturnElementMultipleReturns.java

@@ -0,0 +1,11 @@
+// "Make 'm' return 'java.util.AbstractList<java.lang.Object>' or predecessor" "true"
+import java.util.*;
+
+class Test {
+
+  void <caret>m(boolean b) {
+    if (b) return new ArrayList<>();
+    return new LinkedList<>();
+  }
+
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/beforeInvalidReturnElementNullableReturn.java

@@ -0,0 +1,10 @@
+// "Make 'm' return 'java.lang.Integer' or predecessor" "true"
+
+class Test {
+
+  void <caret>m(boolean b) {
+    if (b) return null;
+    return 42;
+  }
+
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/beforeInvalidReturnElementPrimitiveReturn.java

@@ -0,0 +1,9 @@
+// "Make 'm' return 'int'" "true"
+
+class Test {
+
+  void <caret>m() {
+    return 42;
+  }
+
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/beforeInvalidReturnElementVoidReturn.java

@@ -0,0 +1,8 @@
+// "Make 'm' return 'void'" "true"
+
+class Test {
+
+  int <caret>m() {
+  }
+
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/beforeNoReturnElementMultipleReturns.java

@@ -0,0 +1,9 @@
+// "Make 'm' return 'double'" "true"
+class Test {
+
+  <caret>m(boolean b) {
+    if (b) return 42;
+    return 10.0;
+  }
+
+}