diff --git a/config_test/test.toml b/internal/apitest/config_test/test.toml
similarity index 83%
rename from config_test/test.toml
rename to internal/apitest/config_test/test.toml
index b1258b2..401b1ac 100644
--- a/config_test/test.toml
+++ b/internal/apitest/config_test/test.toml
@@ -3,7 +3,7 @@
 database_file_path = "file::memory:?cache=shared"
 
 # The path to the sql file to load for demo data.
-demo_data_path = "./demodata.sql"
+demo_data_path = "../../demodata.sql"
 
 # The port to listen on for the server.
 port = "8080"
diff --git a/get_book_test.go b/internal/apitest/get_book_test.go
similarity index 98%
rename from get_book_test.go
rename to internal/apitest/get_book_test.go
index 51f48a6..8ea5c5f 100644
--- a/get_book_test.go
+++ b/internal/apitest/get_book_test.go
@@ -1,4 +1,4 @@
-package main
+package apitest
 
 import (
 	"encoding/json"
diff --git a/get_user_book_test.go b/internal/apitest/get_user_book_test.go
similarity index 98%
rename from get_user_book_test.go
rename to internal/apitest/get_user_book_test.go
index cef0b2f..bb7716c 100644
--- a/get_user_book_test.go
+++ b/internal/apitest/get_user_book_test.go
@@ -1,4 +1,4 @@
-package main
+package apitest
 
 import (
 	"encoding/json"
diff --git a/post_book_read_test.go b/internal/apitest/post_book_read_test.go
similarity index 98%
rename from post_book_read_test.go
rename to internal/apitest/post_book_read_test.go
index a3dcd36..53e07f7 100644
--- a/post_book_read_test.go
+++ b/internal/apitest/post_book_read_test.go
@@ -1,4 +1,4 @@
-package main
+package apitest
 
 import (
 	"fmt"
diff --git a/post_book_test.go b/internal/apitest/post_book_test.go
similarity index 99%
rename from post_book_test.go
rename to internal/apitest/post_book_test.go
index d76201e..8c06514 100644
--- a/post_book_test.go
+++ b/internal/apitest/post_book_test.go
@@ -1,4 +1,4 @@
-package main
+package apitest
 
 import (
 	"fmt"
diff --git a/post_user_test.go b/internal/apitest/post_user_test.go
similarity index 98%
rename from post_user_test.go
rename to internal/apitest/post_user_test.go
index da52232..7ceb346 100644
--- a/post_user_test.go
+++ b/internal/apitest/post_user_test.go
@@ -1,4 +1,4 @@
-package main
+package apitest
 
 import (
 	"net/http"
diff --git a/search_book_test.go b/internal/apitest/search_book_test.go
similarity index 98%
rename from search_book_test.go
rename to internal/apitest/search_book_test.go
index 4ea607d..05725e6 100644
--- a/search_book_test.go
+++ b/internal/apitest/search_book_test.go
@@ -1,4 +1,4 @@
-package main
+package apitest
 
 import (
 	"encoding/json"