From e6b468af9bd1278bdeb232dd4247c1dbece9509f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dr=2E=20Patrick=20Urbanke=20=28=E5=8A=89=E8=87=AA=E6=88=90?=
 =?UTF-8?q?=29?= <patrick@getml.com>
Date: Fri, 24 Oct 2025 08:14:34 +0200
Subject: [PATCH] Added tests for schemata (#76)

---
 src/sqlgen/mysql/to_sql.cpp                   |  3 +++
 src/sqlgen/sqlite/to_sql.cpp                  |  3 +++
 .../test_to_select_from_with_schema_dry.cpp   | 26 ++++++++++++++++++
 .../test_to_select_from_with_schema_dry.cpp   | 26 ++++++++++++++++++
 .../test_to_select_from_with_schema.cpp       | 27 +++++++++++++++++++
 5 files changed, 85 insertions(+)
 create mode 100644 tests/mysql/test_to_select_from_with_schema_dry.cpp
 create mode 100644 tests/postgres/test_to_select_from_with_schema_dry.cpp
 create mode 100644 tests/sqlite/test_to_select_from_with_schema.cpp

diff --git a/src/sqlgen/mysql/to_sql.cpp b/src/sqlgen/mysql/to_sql.cpp
index 8799cc4..35ef659 100644
--- a/src/sqlgen/mysql/to_sql.cpp
+++ b/src/sqlgen/mysql/to_sql.cpp
@@ -833,6 +833,9 @@ std::string table_or_query_to_sql(
   return _table_or_query.visit([](const auto& _t) -> std::string {
     using Type = std::remove_cvref_t<decltype(_t)>;
     if constexpr (std::is_same_v<Type, dynamic::Table>) {
+      if (_t.schema) {
+        return wrap_in_quotes(*_t.schema) + "." + wrap_in_quotes(_t.name);
+      }
       return wrap_in_quotes(_t.name);
     } else {
       return "(" + select_from_to_sql(*_t) + ")";
diff --git a/src/sqlgen/sqlite/to_sql.cpp b/src/sqlgen/sqlite/to_sql.cpp
index e4fd737..d38e687 100644
--- a/src/sqlgen/sqlite/to_sql.cpp
+++ b/src/sqlgen/sqlite/to_sql.cpp
@@ -716,6 +716,9 @@ std::string table_or_query_to_sql(
   return _table_or_query.visit([](const auto& _t) -> std::string {
     using Type = std::remove_cvref_t<decltype(_t)>;
     if constexpr (std::is_same_v<Type, dynamic::Table>) {
+      if (_t.schema) {
+        return wrap_in_quotes(*_t.schema) + "." + wrap_in_quotes(_t.name);
+      }
       return wrap_in_quotes(_t.name);
     } else {
       return "(" + select_from_to_sql(*_t) + ")";
diff --git a/tests/mysql/test_to_select_from_with_schema_dry.cpp b/tests/mysql/test_to_select_from_with_schema_dry.cpp
new file mode 100644
index 0000000..959cb5f
--- /dev/null
+++ b/tests/mysql/test_to_select_from_with_schema_dry.cpp
@@ -0,0 +1,26 @@
+#include <gtest/gtest.h>
+
+#include <sqlgen.hpp>
+#include <sqlgen/mysql.hpp>
+
+namespace test_to_select_from_with_schema_dry {
+
+struct TestTable {
+  constexpr static const char* tablename = "test_table";
+  constexpr static const char* schema = "my_schema";
+
+  std::string field1;
+  int32_t field2;
+  sqlgen::PrimaryKey<uint32_t> id;
+  std::optional<std::string> nullable;
+};
+
+TEST(mysql, test_to_select_from_with_schema_dry) {
+  const auto query = sqlgen::read<std::vector<TestTable>>;
+
+  const auto expected =
+      R"(SELECT `field1`, `field2`, `id`, `nullable` FROM `my_schema`.`test_table`)";
+
+  EXPECT_EQ(sqlgen::mysql::to_sql(query), expected);
+}
+}  // namespace test_to_select_from_with_schema_dry
diff --git a/tests/postgres/test_to_select_from_with_schema_dry.cpp b/tests/postgres/test_to_select_from_with_schema_dry.cpp
new file mode 100644
index 0000000..216ada5
--- /dev/null
+++ b/tests/postgres/test_to_select_from_with_schema_dry.cpp
@@ -0,0 +1,26 @@
+#include <gtest/gtest.h>
+
+#include <sqlgen.hpp>
+#include <sqlgen/postgres.hpp>
+
+namespace test_to_select_from_with_schema_dry {
+
+struct TestTable {
+  constexpr static const char* tablename = "test_table";
+  constexpr static const char* schema = "my_schema";
+
+  std::string field1;
+  int32_t field2;
+  sqlgen::PrimaryKey<uint32_t> id;
+  std::optional<std::string> nullable;
+};
+
+TEST(postgres, test_to_select_from_with_schema_dry) {
+  const auto query = sqlgen::read<std::vector<TestTable>>;
+
+  const auto expected =
+      R"(SELECT "field1", "field2", "id", "nullable" FROM "my_schema"."test_table")";
+
+  EXPECT_EQ(sqlgen::postgres::to_sql(query), expected);
+}
+}  // namespace test_to_select_from_with_schema_dry
diff --git a/tests/sqlite/test_to_select_from_with_schema.cpp b/tests/sqlite/test_to_select_from_with_schema.cpp
new file mode 100644
index 0000000..38c097f
--- /dev/null
+++ b/tests/sqlite/test_to_select_from_with_schema.cpp
@@ -0,0 +1,27 @@
+#include <gtest/gtest.h>
+
+#include <sqlgen.hpp>
+#include <sqlgen/sqlite.hpp>
+
+namespace test_to_select_from_with_schema {
+
+struct TestTable {
+  constexpr static const char* tablename = "test_table";
+  constexpr static const char* schema = "my_schema";
+
+  std::string field1;
+  int32_t field2;
+  sqlgen::PrimaryKey<uint32_t> id;
+  std::optional<std::string> nullable;
+};
+
+TEST(sqlite, test_to_select_from_with_schema) {
+  const auto select_from_stmt =
+      sqlgen::transpilation::read_to_select_from<TestTable>();
+  const auto conn = sqlgen::sqlite::connect().value();
+  const auto expected =
+      R"(SELECT "field1", "field2", "id", "nullable" FROM "my_schema"."test_table")";
+
+  EXPECT_EQ(conn->to_sql(select_from_stmt), expected);
+}
+}  // namespace test_to_select_from_with_schema