diff --git a/pkg/client/result_test.go b/pkg/client/result_test.go
new file mode 100644
index 0000000..7a58e67
--- /dev/null
+++ b/pkg/client/result_test.go
@@ -0,0 +1,46 @@
+package client
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_CSV(t *testing.T) {
+	result := Result{
+		Columns: []string{"id", "name", "email"},
+		Rows: []Row{
+			Row{1, "John", "john@example.com"},
+			Row{2, "Bob", "bob@example.com"},
+		},
+	}
+
+	expected := "id,name,email\n1,John,john@example.com\n2,Bob,bob@example.com\n"
+	output := string(result.CSV())
+
+	assert.Equal(t, expected, output)
+}
+
+func Test_JSON(t *testing.T) {
+	result := Result{
+		Columns: []string{"id", "name", "email"},
+		Rows: []Row{
+			Row{1, "John", "john@example.com"},
+			Row{2, "Bob", "bob@example.com"},
+		},
+	}
+
+	output := result.JSON()
+	obj := []map[string]interface{}{}
+	err := json.Unmarshal(output, &obj)
+
+	assert.NoError(t, err)
+	assert.Equal(t, 2, len(obj))
+
+	for i, row := range obj {
+		for j, col := range result.Columns {
+			assert.Equal(t, result.Rows[i][j], row[col])
+		}
+	}
+}