Add unit test from FasterXML#33 to failing unit tests folder

.gitignore

@@ -19,3 +19,4 @@ target
 *.iml
 *.ipr
 *.iws
+.idea

pom.xml

@@ -25,7 +25,7 @@ abstractions.
   </scm>
 
   <properties>
-    <jackson.version.annotations>2.3.0</jackson.version.annotations>
+    <jackson.version.annotations>2.4.0-SNAPSHOT</jackson.version.annotations>
     <jackson.version.core>2.4.0-SNAPSHOT</jackson.version.core>
     <!-- Generate PackageVersion.java into this directory. -->
     <packageVersion.dir>com/fasterxml/jackson/dataformat/csv</packageVersion.dir>
@@ -77,6 +77,12 @@ abstractions.
       <version>${jackson.version.annotations}</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+      <version>16.0.1</version>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>

src/test/java/com/fasterxml/jackson/dataformat/csv/failing/TestWriter.java

@@ -0,0 +1,77 @@
+package com.fasterxml.jackson.dataformat.csv.failing;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectWriter;
+import com.fasterxml.jackson.dataformat.csv.CsvMapper;
+import com.fasterxml.jackson.dataformat.csv.CsvSchema;
+import com.google.common.collect.ImmutableMap;
+import org.junit.Test;
+
+import java.lang.String;import static org.junit.Assert.assertEquals;
+
+public class TestWriter {
+
+    @Test
+    public void testWrite_NoNulls() throws JsonProcessingException {
+        final CsvSchema.Builder csvSchemaBuilder = new CsvSchema.Builder();
+        csvSchemaBuilder.addColumn("timestamp", CsvSchema.ColumnType.STRING);
+        csvSchemaBuilder.addColumn("value", CsvSchema.ColumnType.NUMBER);
+        csvSchemaBuilder.addColumn("id", CsvSchema.ColumnType.STRING);
+        final CsvSchema schema = csvSchemaBuilder.build();
+        final ObjectWriter writer = new CsvMapper().writer().withSchema(schema);
+
+        final String string = writer.writeValueAsString(
+                ImmutableMap.of("timestamp", "2014-03-10T23:32:47+00:00",
+                        "value", 42, "id", "hello"));
+
+        assertEquals("\"2014-03-10T23:32:47+00:00\",42,hello\n", string);
+    }
+
+    @Test
+    public void testWrite_NullFirstColumn() throws JsonProcessingException {
+        final CsvSchema.Builder csvSchemaBuilder = new CsvSchema.Builder();
+        csvSchemaBuilder.addColumn("timestamp", CsvSchema.ColumnType.STRING);
+        csvSchemaBuilder.addColumn("value", CsvSchema.ColumnType.NUMBER);
+        csvSchemaBuilder.addColumn("id", CsvSchema.ColumnType.STRING);
+        final CsvSchema schema = csvSchemaBuilder.build();
+        final ObjectWriter writer = new CsvMapper().writer().withSchema(schema);
+
+        final String string = writer.writeValueAsString(
+                ImmutableMap.of("value", 42, "id", "hello"));
+
+        assertEquals(",42,hello\n", string);
+    }
+
+    @Test
+    public void testWrite_NullSecondColumn() throws JsonProcessingException {
+        final CsvSchema.Builder csvSchemaBuilder = new CsvSchema.Builder();
+        csvSchemaBuilder.addColumn("timestamp", CsvSchema.ColumnType.STRING);
+        csvSchemaBuilder.addColumn("value", CsvSchema.ColumnType.NUMBER);
+        csvSchemaBuilder.addColumn("id", CsvSchema.ColumnType.STRING);
+        final CsvSchema schema = csvSchemaBuilder.build();
+        final ObjectWriter writer = new CsvMapper().writer().withSchema(schema);
+
+        final String string = writer.writeValueAsString(
+                ImmutableMap.of("timestamp", "2014-03-10T23:32:47+00:00",
+                        "id", "hello"));
+
+        assertEquals("\"2014-03-10T23:32:47+00:00\",,hello\n", string);
+    }
+
+    @Test
+    public void testWrite_NullThirdColumn() throws JsonProcessingException {
+        final CsvSchema.Builder csvSchemaBuilder = new CsvSchema.Builder();
+        csvSchemaBuilder.addColumn("timestamp", CsvSchema.ColumnType.STRING);
+        csvSchemaBuilder.addColumn("value", CsvSchema.ColumnType.NUMBER);
+        csvSchemaBuilder.addColumn("id", CsvSchema.ColumnType.STRING);
+        final CsvSchema schema = csvSchemaBuilder.build();
+        final ObjectWriter writer = new CsvMapper().writer().withSchema(schema);
+
+        final String string = writer.writeValueAsString(
+                ImmutableMap.of("timestamp", "2014-03-10T23:32:47+00:00",
+                        "value", 42));
+
+        assertEquals("\"2014-03-10T23:32:47+00:00\",42\n", string);
+    }
+
+}