support/testing: new sqlite runtime test

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

DEVELOPERS

@@ -1826,6 +1826,7 @@ F:	support/testing/tests/package/test_rdma_core.py
 F:	support/testing/tests/package/test_rdma_core/
 F:	support/testing/tests/package/test_screen.py
 F:	support/testing/tests/package/test_sed.py
+F:	support/testing/tests/package/test_sqlite.py
 F:	support/testing/tests/package/test_strace.py
 F:	support/testing/tests/package/test_stress_ng.py
 F:	support/testing/tests/package/test_tcl.py

support/testing/tests/package/test_sqlite.py

@@ -0,0 +1,101 @@
+import os
+
+import infra.basetest
+
+
+class TestSQLite(infra.basetest.BRTest):
+    config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
+        """
+        BR2_PACKAGE_SQLITE=y
+        BR2_TARGET_ROOTFS_CPIO=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        """
+    db_file = "buildroot.db"
+    db_backup = "db_dump.sql"
+
+    def run_sql_query(self, query):
+        cmd = f'sqlite3 "{self.db_file}" "{query}"'
+        self.assertRunOk(cmd)
+
+    def create_tables(self):
+        sql_query = "CREATE TABLE fruits ("
+        sql_query += "id integer PRIMARY KEY, name varchar(16) NOT NULL);"
+        self.run_sql_query(sql_query)
+
+        sql_query = "CREATE TABLE colors ("
+        sql_query += "id integer PRIMARY KEY, name varchar(16) NOT NULL);"
+        self.run_sql_query(sql_query)
+
+        sql_query = "CREATE TABLE fruit_colors ("
+        sql_query += "fruit_id integer REFERENCES fruits(id), "
+        sql_query += "color_id integer REFERENCES colors(id), "
+        sql_query += "UNIQUE (fruit_id, color_id));"
+        self.run_sql_query(sql_query)
+
+    def insert_data(self):
+        fruits = ["Banana", "Blueberry", "Orange", "Raspberry"]
+        fruit_id = 1
+        for fruit in fruits:
+            sql_query = "INSERT INTO fruits (id, name) "
+            sql_query += f"VALUES ({fruit_id}, '{fruit}');"
+            self.run_sql_query(sql_query)
+            fruit_id += 1
+
+        colors = ["Blue", "Orange", "Red", "Yellow"]
+        color_id = 1
+        for color in colors:
+            sql_query = "INSERT INTO colors (id, name) "
+            sql_query += f"VALUES ({color_id}, '{color}');"
+            self.run_sql_query(sql_query)
+            color_id += 1
+
+        fruit_colors = [(1, 4), (2, 1), (3, 2), (4, 3)]
+        for fruit_color in fruit_colors:
+            fruit_id, color_id = fruit_color
+            sql_query = "INSERT INTO fruit_colors (fruit_id, color_id) "
+            sql_query += f"VALUES ({fruit_id}, {color_id});"
+            self.run_sql_query(sql_query)
+
+    def query_database(self):
+        sql_query = "SELECT "
+        sql_query += "fruits.name AS fruit, colors.name AS color "
+        sql_query += "FROM fruits, colors, fruit_colors "
+        sql_query += "WHERE fruits.id = fruit_colors.fruit_id "
+        sql_query += "AND colors.id = fruit_colors.color_id "
+        sql_query += "ORDER BY fruit;"
+        self.run_sql_query(sql_query)
+
+    def test_run(self):
+        cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
+        self.emulator.boot(arch="armv5",
+                           kernel="builtin",
+                           options=["-initrd", cpio_file])
+        self.emulator.login()
+
+        # The sqlite3 binary can execute.
+        self.assertRunOk("sqlite3 --version")
+
+        self.create_tables()
+        self.insert_data()
+        self.query_database()
+
+        sql_query = "UPDATE fruits SET name = 'Lemon' WHERE id = 1;"
+        self.run_sql_query(sql_query)
+
+        # Dump the test database for a backup.
+        cmd = f'echo .dump | sqlite3 "{self.db_file}" > "{self.db_backup}"'
+        self.assertRunOk(cmd)
+
+        # Drop all the tables.
+        tables = ["fruit_colors", "fruits", "colors"]
+        for table in tables:
+            sql_query = f"DROP TABLE {table};"
+            self.run_sql_query(sql_query)
+
+        # Restore the backup.
+        cmd = f'sqlite3 "{self.db_file}" < "{self.db_backup}"'
+        self.assertRunOk(cmd)
+
+        # Query on last time our data, to check the backup restoration
+        # succeeded.
+        self.query_database()