Added basic test cases

Task: BABEL-6037
Signed-off-by: Manisha Deshpande <mmdeshp@amazon.com>

Author: manisha-deshpande

test/JDBC/expected/BABEL-6037-vu-cleanup.out

@@ -0,0 +1,43 @@
+
+-- BABEL-6037 POC Test - Cleanup
+-- Drops all test procedures created during testing
+PRINT 'Starting cleanup of BABEL-6037 POC test procedures...';
+GO
+
+-- Drop Test 1: Simple procedure without arguments
+DROP PROCEDURE IF EXISTS dbo.small_proc;
+PRINT 'Dropped: dbo.small_proc';
+GO
+
+-- Drop Test 2: Simple procedure with arguments
+DROP PROCEDURE IF EXISTS dbo.small_proc_param;
+PRINT 'Dropped: dbo.small_proc_param';
+GO
+
+-- Drop Test 3: Procedure with unsupported node type
+DROP PROCEDURE IF EXISTS dbo.proc_param_supported;
+PRINT 'Dropped: dbo.proc_with_unsupported';
+GO
+
+-- Drop Test 4: Procedure with unsupported node type
+DROP PROCEDURE IF EXISTS dbo.proc_param_unsupported;
+PRINT 'Dropped: dbo.proc_with_unsupported';
+GO
+
+-- Drop Test 5: Complex procedure
+DROP PROCEDURE IF EXISTS dbo.complex_proc;
+PRINT 'Dropped: dbo.complex_proc';
+GO
+
+-- Drop Test 6: Same-session procedure (if it still exists)
+DROP PROCEDURE IF EXISTS dbo.samesession_proc;
+PRINT 'Dropped: dbo.samesession_proc';
+GO
+
+-- Drop Test 7: Old-session procedure (if it still exists)
+DROP PROCEDURE IF EXISTS dbo.oldsession_proc;
+PRINT 'Dropped: dbo.newsession_proc';
+GO
+
+PRINT 'Cleanup completed successfully';
+GO

test/JDBC/expected/BABEL-6037-vu-prepare.out

@@ -0,0 +1,174 @@
+
+-- BABEL-6037 POC Test - Prepare
+-- Creates test procedures for parse tree serialization/deserialization testing
+-- Test 1: Simple procedure without arguments
+-- This tests basic serialization with minimal complexity
+CREATE PROCEDURE dbo.small_proc
+AS
+BEGIN
+    DECLARE @var1 INT = 1;
+    SELECT @var1;
+END;
+GO
+
+-- Test 2: Simple procedure with arguments (from focused revision doc)
+-- This tests parameter handling and variable serialization
+CREATE PROCEDURE dbo.small_proc_param 
+    @param1 INT, 
+    @param2 VARCHAR(50)
+AS
+BEGIN
+    DECLARE @var1 INT = 1;
+    SELECT @var1, @param1, @param2;
+    CREATE TABLE #test(id int);
+END;
+GO
+
+-- Test 3: Procedure with supported node types (PRINT, WHILE, GOTO, TRY-CATCH, CASE, BREAK, CONTINUE)
+-- This tests various statement types within a BLOCK statement
+CREATE PROCEDURE dbo.proc_param_supported  
+@input_val INT = 10 
+AS 
+BEGIN
+    DECLARE @counter INT = 0;
+    DECLARE @result VARCHAR(100) = '';
+    DECLARE @status INT = 0;
+    
+    -- Test PRINT statement
+    PRINT 'Starting test procedure';
+    
+    -- Test WHILE loop with BREAK and CONTINUE
+    WHILE @counter < 3
+    BEGIN
+        SET @counter = @counter + 1;
+        
+        -- Test IF with EXECSQL
+        IF @counter = 2
+        BEGIN
+            SELECT @result = 'Found two';
+        END
+    END
+    
+    -- Test WHILE with BREAK and CONTINUE
+    SET @counter = 0;
+    WHILE 1 = 1
+    BEGIN
+        SET @counter = @counter + 1;
+        
+        -- Test BREAK statement
+        IF @counter > 5
+            BREAK;
+            
+        -- Test CONTINUE statement
+        IF @counter = 3
+            CONTINUE;
+            
+        SET @result = @result + CAST(@counter AS VARCHAR);
+    END
+    
+    -- Test CASE statement
+    SET @status = CASE @input_val
+        WHEN 10 THEN 1
+        WHEN 20 THEN 2
+        WHEN 30 THEN 3
+        ELSE 0
+    END;
+    
+    -- Test GOTO and LABEL
+    IF @status = 0
+        GOTO skip_section;
+    
+    skip_section:
+    PRINT 'Skipped or continued';
+    
+    -- Test TRY-CATCH block
+    BEGIN TRY
+        -- Test EXECSQL with potential error
+        DECLARE @test_val INT;
+        SELECT @test_val = 100 / @input_val;
+        
+        -- Test ASSIGN statement
+        SET @result = 'Success: ' + CAST(@test_val AS VARCHAR);
+    END TRY
+    BEGIN CATCH
+        -- Error handling
+        SET @result = 'Error handled';
+    END CATCH
+    
+    -- Test RETURN statement
+    IF @input_val < 0
+        RETURN;
+    
+    -- Final output
+    SELECT @result AS FinalResult, @status AS Status, @counter AS Counter;
+END;
+GO
+
+
+-- Test 4: Procedure with unsupported node type (EXEC_SP / sp_executesql)
+-- PLTSQL_STMT_EXEC_SP is not in pltsql_is_serializable; triggers PLTSQL_SERIAL_UNSUPPORTED
+-- Each new session falls back to full ANTLR recompile instead of using persistent cache
+CREATE PROCEDURE dbo.proc_param_unsupported
+    @max INT
+AS
+BEGIN
+    DECLARE @sql NVARCHAR(100) = N'SELECT ' + CAST(@max AS NVARCHAR);
+    EXEC sp_executesql @sql;
+END;
+GO
+
+
+
+-- Test 5: Complex procedure that may lead to serialize error
+-- Tests nested blocks, multiple statement types, and IF conditions
+CREATE PROCEDURE dbo.complex_proc
+    @input INT,
+    @flag BIT
+AS
+BEGIN
+    DECLARE @result INT;
+    DECLARE @temp VARCHAR(100);
+    
+    -- Test ASSIGN statement
+    SET @result = @input * 2;
+    
+    -- Test IF statement with nested block
+    IF @flag = 1
+    BEGIN
+        SET @temp = 'Flag is true';
+        SELECT @result, @temp;
+        
+        -- Nested temp table operations
+        CREATE TABLE #temp1(id INT, value VARCHAR(50));
+        INSERT INTO #temp1 VALUES (@result, @temp);
+        SELECT * FROM #temp1;
+    END
+    ELSE
+    BEGIN
+        SET @temp = 'Flag is false';
+        SELECT @result, @temp;
+    END;
+    
+    -- Test EXECSQL with UNPIVOT (complex SQL expression within serializable proc)
+    SELECT col, val
+    FROM (SELECT @input AS input_val, @result AS doubled_val) AS src
+    UNPIVOT (val FOR col IN (input_val, doubled_val)) AS unpvt;
+    -- Test RETURN statement
+    RETURN @result;
+END;
+GO
+
+
+-- Test 6: Procedure for same-session testing
+-- Test 7: Procedure for new-session testing
+-- This will be used to test ALTER and DROP in new session
+CREATE PROCEDURE dbo.oldsession_proc
+    @value INT
+AS
+BEGIN
+    SELECT @value AS original_value;
+END;
+GO
+
+PRINT 'All test procedures created successfully';
+GO