Add tests for from and for join

tests/core/serialize/basic/join.cpp

@@ -37,6 +37,9 @@ int main(int, char* [])
   const auto foo = test::TabFoo{};
   const auto bar = test::TabBar{};
 
+  const auto aFoo = foo.as(sqlpp::alias::a);
+  const auto bFoo = foo.as(sqlpp::alias::b);
+
   // Join with two tables
   SQLPP_COMPARE(foo.join(bar).on(foo.id == bar.id), "tab_foo INNER JOIN tab_bar ON tab_foo.id = tab_bar.id");
   SQLPP_COMPARE(foo.inner_join(bar).on(foo.id == bar.id), "tab_foo INNER JOIN tab_bar ON tab_foo.id = tab_bar.id");
@@ -46,6 +49,25 @@ int main(int, char* [])
 
   SQLPP_COMPARE(foo.cross_join(bar), "tab_foo CROSS JOIN tab_bar");
 
+  // Join with table aliases.
+  SQLPP_COMPARE(foo.join(bFoo).on(foo.id == bFoo.id), "tab_foo INNER JOIN tab_foo AS b ON tab_foo.id = b.id");
+  SQLPP_COMPARE(aFoo.join(foo).on(aFoo.id == foo.id), "tab_foo AS a INNER JOIN tab_foo ON a.id = tab_foo.id");
+  SQLPP_COMPARE(aFoo.join(bFoo).on(aFoo.id == bFoo.id), "tab_foo AS a INNER JOIN tab_foo AS b ON a.id = b.id");
+
+  // Static joins involving verbatim tables
+  SQLPP_COMPARE(aFoo.join(sqlpp::verbatim_table("unknown_table"))
+                             .on(aFoo.id == sqlpp::verbatim<sqlpp::floating_point>("unknown_table.column_x")),
+          "tab_foo AS a INNER JOIN unknown_table ON a.id = unknown_table.column_x");
+  SQLPP_COMPARE(sqlpp::verbatim_table("unknown_table")
+                             .join(aFoo)
+                             .on(aFoo.id == sqlpp::verbatim<sqlpp::floating_point>("unknown_table.column_x")),
+          "unknown_table INNER JOIN tab_foo AS a ON a.id = unknown_table.column_x");
+  SQLPP_COMPARE(sqlpp::verbatim_table("unknown_table")
+                             .as(sqlpp::alias::a)
+                             .join(sqlpp::verbatim_table("another_table"))
+                             .on(sqlpp::verbatim<sqlpp::boolean>("a.column_x = another_table.x")),
+          "unknown_table AS a INNER JOIN another_table ON a.column_x = another_table.x");
+
   // Join with dynamic table
   SQLPP_COMPARE(foo.join(dynamic(true, bar)).on(foo.id == bar.id), "tab_foo INNER JOIN tab_bar ON tab_foo.id = tab_bar.id");
   SQLPP_COMPARE(foo.inner_join(dynamic(true, bar)).on(foo.id == bar.id), "tab_foo INNER JOIN tab_bar ON tab_foo.id = tab_bar.id");
@@ -65,8 +87,6 @@ int main(int, char* [])
 
 #warning: Need to add tests with 3 tables
 
-#warning: Need to add tests with table aliases
-#warning: Need to add tests with verbatim tables
 #warning: Need to add tests with sub selects
 #warning: Need to add tests with CTEs
   return 0;

tests/core/serialize/clause/CMakeLists.txt

@@ -30,6 +30,7 @@ function(create_test name)
 endfunction()
 
 create_test(group_by)
+create_test(from)
 create_test(insert)
 create_test(insert_columns)
 create_test(insert_default_values)

tests/core/serialize/clause/from.cpp

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2024, Roland Bock
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "Sample.h"
+#include "../compare.h"
+#include <sqlpp11/sqlpp11.h>
+
+int main()
+{
+  const auto foo = test::TabFoo{};
+  const auto bar = test::TabBar{};
+  const auto aFoo = foo.as(sqlpp::alias::a);
+  const auto bFoo = foo.as(sqlpp::alias::b);
+  const auto cFoo = foo.as(sqlpp::alias::c);
+
+  // Single table
+  SQLPP_COMPARE(from(foo), " FROM tab_foo");
+
+  // Tests with joined tables are mostly covered by join tests.
+
+  // Static joins
+  SQLPP_COMPARE(from(foo.cross_join(bar)), " FROM tab_foo CROSS JOIN tab_bar");
+  SQLPP_COMPARE(from(foo.join(bar).on(foo.id == bar.id)),
+          " FROM tab_foo INNER JOIN tab_bar ON tab_foo.id = tab_bar.id");
+
+  // Multiple tables
+  SQLPP_COMPARE(from(aFoo.join(bFoo).on(aFoo.id == bFoo.id).join(cFoo).on(bFoo.id == cFoo.id)),
+      " FROM tab_foo AS a INNER JOIN tab_foo AS b ON a.id = b.id INNER JOIN tab_foo AS c ON b.id = c.id");
+
+#warning add tests for dynamic joins
+
+  return 0;
+}