Create BigDecimalParser4694Test.java (#1332)

Author: pjfanning

src/test/java/com/fasterxml/jackson/failing/BigDecimalParser4694Test.java

@@ -0,0 +1,25 @@
+package com.fasterxml.jackson.failing;
+
+import ch.randelshofer.fastdoubleparser.JavaBigDecimalParser;
+import com.fasterxml.jackson.core.io.BigDecimalParser;
+import org.junit.jupiter.api.Test;
+
+import java.math.BigDecimal;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class BigDecimalParser4694Test extends com.fasterxml.jackson.core.JUnit5TestBase
+{
+    // https://github.com/FasterXML/jackson-databind/issues/4694
+    @Test
+    void issueDatabind4694() {
+        final String str = "-11000.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000";
+        final BigDecimal expected = new BigDecimal(str);
+        assertEquals(expected, JavaBigDecimalParser.parseBigDecimal(str));
+        assertEquals(expected, BigDecimalParser.parse(str));
+        assertEquals(expected, BigDecimalParser.parseWithFastParser(str));
+        final char[] arr = str.toCharArray();
+        assertEquals(expected, BigDecimalParser.parse(arr, 0, arr.length));
+        assertEquals(expected, BigDecimalParser.parseWithFastParser(arr, 0, arr.length));
+    }
+}