add amazon kinesis as an output plugin

closes #428

outputs/kinesis/kinesis_test.go

@@ -0,0 +1,40 @@
+package kinesis
+
+import (
+	"testing"
+	"github.com/influxdb/telegraf/testutil"
+	"github.com/stretchr/testify/require"
+)
+
+
+func TestFormatMetric(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping integration test in short mode")
+	}
+
+	k := &KinesisOutput{
+		Format: "string",
+	}
+
+	p := testutil.MockBatchPoints().Points()[0]
+
+	valid_string := "test1,tag1=value1 value=1 1257894000000000000"
+	func_string, err := FormatMetric(k, p)
+
+	if func_string != valid_string {
+		t.Error("Expected ", valid_string)
+	}
+	require.NoError(t, err)
+
+	k = &KinesisOutput{
+		Format: "custom",
+	}
+
+	valid_custom := "test1,map[tag1:value1],test1,tag1=value1 value=1 1257894000000000000"
+	func_custom, err := FormatMetric(k, p)
+
+	if func_custom != valid_custom {
+		t.Error("Expected ", valid_custom)
+	}
+	require.NoError(t, err)
+}