Add test demonstrating issue #207

parboiled-core/src/test/scala/org/parboiled2/ReductionResetSpec.scala

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2009-2019 Mathias Doenitz
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.parboiled2
+
+import utest._
+import shapeless._
+
+object ReductionResetSpec extends TestParserSpec {
+
+  abstract class ReductionResetParser extends TestParser1[Int] {
+
+    def Alternative: Rule1[Int] = rule {
+      Digits ~ (String2Int ~ "." | String2Int)
+    }
+
+    def ZeroOrMore: Rule1[Int] = rule {
+      Digits ~ zeroOrMore(String2Int ~ "." ~ Int2String) ~ String2Int
+    }
+
+    def OneOrMore: Rule1[Int] = rule {
+      Digits ~ oneOrMore(String2Int ~ "." ~ Int2String) ~ String2Int
+    }
+
+    def String2Int: Rule[String :: HNil, Int :: HNil] = rule {
+      run((_: String).toInt)
+    }
+
+    def Int2String: Rule[Int :: HNil, String :: HNil] = rule {
+      run((_: Int).toString)
+    }
+
+    def Digits: Rule1[String] = rule {
+      capture(oneOrMore(CharPredicate.Digit))
+    }
+  }
+
+  val tests = Tests {
+
+    "ReductionResetSpec" - {
+
+      "reduction reset in `|`" - new ReductionResetParser {
+        def targetRule = Alternative
+
+        // re-enable after fixing
+        //"123" must beMatchedWith(123)
+      }
+
+      "reduction reset in `zeroOrMore`" - new ReductionResetParser {
+        def targetRule = ZeroOrMore
+
+        //"123" must beMatchedWith(123)
+      }
+
+      "reduction reset in `oneOrMore`" - new ReductionResetParser {
+        def targetRule = OneOrMore
+
+        //"123." must beMatchedWith(123)
+      }
+    }
+  }
+}