[CSV-213] CSVParser#iterator()#hasNext() fails.

Author: garydgregory

src/test/java/org/apache/commons/csv/issues/JiraCsv213Test.java

@@ -0,0 +1,58 @@
+package org.apache.commons.csv.issues;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+
+import org.apache.commons.csv.CSVFormat;
+import org.apache.commons.csv.CSVParser;
+import org.apache.commons.csv.CSVRecord;
+import org.apache.commons.csv.QuoteMode;
+import org.junit.Ignore;
+import org.junit.Test;
+
+/**
+ * Tests https://issues.apache.org/jira/browse/CSV-213
+ * 
+ * This is normal behavior with the current architecture: The iterator() API presents an object that is backed by data
+ * in the CSVParser as the parser is streaming over the file. The CSVParser is like a forward-only stream. When you
+ * create a new Iterator you are only created a new view on the same position in the parser's stream. For the behavior
+ * you want, you need to open a new CSVParser.
+ *
+ */
+@Ignore
+public class JiraCsv213Test {
+
+    private void createEndChannel(File csvFile) {
+        // @formatter:off
+        final CSVFormat csvFormat =
+                CSVFormat.DEFAULT
+                    .withDelimiter(';')
+                    .withFirstRecordAsHeader()
+                    .withRecordSeparator('\n')
+                    .withQuoteMode(QuoteMode.ALL);
+        // @formatter:on
+        try (CSVParser parser = csvFormat
+                .parse(new InputStreamReader(new FileInputStream(csvFile), StandardCharsets.UTF_8))) {
+            if (parser.iterator().hasNext()) {
+                System.out.println(parser.getCurrentLineNumber());
+                System.out.println(parser.getRecordNumber());
+                // get only first record we don't need other's
+                CSVRecord firstRecord = parser.iterator().next(); // this fails
+
+                return;
+            }
+        } catch (IOException e) {
+            throw new RuntimeException("Error while adding end channel to csv", e);
+        }
+
+        return;
+    }
+
+    @Test
+    public void test() {
+        createEndChannel(new File("src/test/resources/CSV-213/999751170.patch.csv"));
+    }
+}

src/test/resources/CSV-213/999751170.patch.csv

@@ -0,0 +1,2 @@
+"CHANELID";"ADDRESS"
+"27";""