Add tests and SQL files for insert conflict formatting

Author: xterao

src/test/kotlin/org/domaframework/doma/intellij/formatter/SqlFormatterTest.kt

@@ -84,6 +84,14 @@ class SqlFormatterTest : BasePlatformTestCase() {
         formatSqlFile("Delete.sql", "Delete_format.sql")
     }
 
+    fun testInsertConflictUpdateFormatter() {
+        formatSqlFile("InsertConflictUpdate.sql", "InsertConflictUpdate_format.sql")
+    }
+
+    fun testInsertConflictNothingFormatter() {
+        formatSqlFile("InsertConflictNothing.sql", "InsertConflictNothing_format.sql")
+    }
+
     private fun formatSqlFile(
         beforeFile: String,
         afterFile: String,

src/test/testData/sql/formatter/InsertConflictNothing.sql

@@ -0,0 +1,3 @@
+insert into users (username, email)
+values ('user', '[email protected]')
+on CONFLICT(username) do nothing

src/test/testData/sql/formatter/InsertConflictNothing_format.sql

@@ -0,0 +1,7 @@
+INSERT INTO users
+            (username
+             , email)
+     VALUES ('user'             
+              , '[email protected]')
+ON CONFLICT(username) 
+DO NOTHING