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Database enforces foreign key constraints incl. cascading deletes. (#480)

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* Database enforces foreign key constraints incl. cascading deletes.
Fixes #317.
This commit is contained in:
Dennis Guse
2020-10-30 21:26:13 +01:00
committed by GitHub
parent 2b280f050c
commit 48c3695b5d
10 changed files with 164 additions and 129 deletions
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src/androidTest/java/de/dennisguse/opentracks/content/provider/CustomSQLiteOpenHelperTest.java
+18 -35
View File
@@ -6,7 +6,6 @@ import android.database.sqlite.SQLiteConstraintException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import androidx.annotation.VisibleForTesting;
import androidx.test.core.app.ApplicationProvider;
import androidx.test.ext.junit.runners.AndroidJUnit4;
@@ -38,39 +37,21 @@ public class CustomSQLiteOpenHelperTest {
private final Context context = ApplicationProvider.getApplicationContext();
/**
* Get the SQL create statements for all tables (ordered by name).
* Get the SQL create statements for all SQLite elements of type (ordered by name).
*
* @return Map(TableName, SQL)
* @param type index, table
* @return Map(name, SQL)
*/
@VisibleForTesting
public static Map<String, String> getTableSQL(SQLiteDatabase db) {
HashMap<String, String> tableSQL = new HashMap<>();
try (Cursor cursor = db.query("sqlite_master", new String[]{"name", "SQL"}, "name IN ('" + TracksColumns.TABLE_NAME + "', '" + TrackPointsColumns.TABLE_NAME + "', '" + MarkerColumns.TABLE_NAME + "')", null, null, null, "name")) {
public static Map<String, String> getSQL(SQLiteDatabase db, String type) {
HashMap<String, String> sqlMap = new HashMap<>();
try (Cursor cursor = db.query("sqlite_master", new String[]{"name", "SQL"}, "type=?", new String[]{type}, null, null, "name")) {
if (cursor != null) {
while (cursor.moveToNext()) {
tableSQL.put(cursor.getString(0), cursor.getString(1));
sqlMap.put(cursor.getString(0), cursor.getString(1));
}
}
}
return tableSQL;
}
/**
* Get the SQL create statements for all indices (ordered by name).
*
* @return Map(tableName, SQL)
*/
@VisibleForTesting
public static Map<String, String> getIndexSQL(SQLiteDatabase db) {
HashMap<String, String> indexSQL = new HashMap<>();
try (Cursor cursor = db.rawQuery("SELECT tbl_name, SQL FROM sqlite_master WHERE type = 'index'", null)) {
if (cursor != null) {
while (cursor.moveToNext()) {
indexSQL.put(cursor.getString(0), cursor.getString(1));
}
}
}
return indexSQL;
return sqlMap;
}
/**
@@ -109,7 +90,7 @@ public class CustomSQLiteOpenHelperTest {
assertTrue(hasSqlCreate(db, MarkerColumns.CREATE_TABLE));
assertTrue(hasSqlCreate(db, MarkerColumns.CREATE_TABLE_INDEX));
} catch (Exception e) {
fail();
fail("Database could not be created: " + e);
}
}
@@ -121,8 +102,8 @@ public class CustomSQLiteOpenHelperTest {
Map<String, String> tableByUpgrade;
Map<String, String> indicesByUpgrade;
try (SQLiteDatabase dbUpgraded = new CustomSQLiteOpenHelper(context, DATABASE_NAME).getReadableDatabase()) {
tableByUpgrade = getTableSQL(dbUpgraded);
indicesByUpgrade = getIndexSQL(dbUpgraded);
tableByUpgrade = getSQL(dbUpgraded, "table");
indicesByUpgrade = getSQL(dbUpgraded, "index");
}
context.deleteDatabase(DATABASE_NAME);
@@ -130,12 +111,14 @@ public class CustomSQLiteOpenHelperTest {
Map<String, String> tablesByCreate;
Map<String, String> indicesByCreate;
try (SQLiteDatabase dbCreated = new CustomSQLiteOpenHelper(context, DATABASE_NAME).getReadableDatabase()) {
tablesByCreate = getTableSQL(dbCreated);
indicesByCreate = getIndexSQL(dbCreated);
tablesByCreate = getSQL(dbCreated, "table");
indicesByCreate = getSQL(dbCreated, "index");
}
// then - verify table structure
assertEquals(3, tableByUpgrade.size());
int tableCount = 3 + 2; //Three with data tables + two SQLite
assertEquals(tableCount, tableByUpgrade.size());
assertEquals(tableByUpgrade.size(), tablesByCreate.size());
assertEquals(tablesByCreate.get(TracksColumns.TABLE_NAME), tableByUpgrade.get(TracksColumns.TABLE_NAME));
@@ -158,8 +141,8 @@ public class CustomSQLiteOpenHelperTest {
Map<String, String> tablesByDowngrade;
Map<String, String> indicesByDowngrade;
try (SQLiteDatabase db = new CustomSQLiteOpenHelper(context, DATABASE_NAME, 23).getReadableDatabase()) {
tablesByDowngrade = getTableSQL(db);
indicesByDowngrade = getIndexSQL(db);
tablesByDowngrade = getSQL(db, "table");
indicesByDowngrade = getSQL(db, "index");
}
// then - verify table structure