1 files changed, 43 insertions, 0 deletions
diff --git a/src/test/resources/com/puppycrawl/tools/checkstyle/checks/descendanttoken/InputDescendantTokenStringLiteralEquality.java b/src/test/resources/com/puppycrawl/tools/checkstyle/checks/descendanttoken/InputDescendantTokenStringLiteralEquality.java
new file mode 100644
index 000000000..db67804b1
--- /dev/null
+++ b/src/test/resources/com/puppycrawl/tools/checkstyle/checks/descendanttoken/InputDescendantTokenStringLiteralEquality.java
@@ -0,0 +1,43 @@
+package com.puppycrawl.tools.checkstyle.checks.descendanttoken;
+
+public class InputDescendantTokenStringLiteralEquality
+{
+    void foo(String name)
+    {
+        if (name == "Lars")
+        {
+            // flagged, should use equals
+        }
+
+        if ("Oleg" == name)
+        {
+            // flagged, should use equals
+        }
+
+        if ("Oliver" == "Oliver")
+        {
+            // doesn't make much sense because this can be evaluated
+            // to true at compile time, but is flagged anyway
+        }
+
+        String compare = "Rick";
+        if (name == compare)
+        {
+            // currently not flagged.
+            //
+            // Implementing this is very complicated, we would need
+            // - type info on the == operands
+            // - prevent false alarms where the user explicitly wants
+            //   to compare object identities
+            //
+            // My current feeling is that we should leave finding
+            // this one to manual code inspections. After all MCI is
+            // what some of us get paid for :-)
+        }
+
+        if ("Rick".toUpperCase(java.util.Locale.getDefault()) == "Rick".toLowerCase(java.util.Locale.getDefault()))
+        {
+            // completly dynamic, don't flag
+        }
+    }
+}