# 2010 November 30 # # The author disclaims copyright to this source code. In place of # a legal notice, here is a blessing: # # May you do good and not evil. # May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # # This file implements tests to verify that the "testable statements" in # the lang_dropview.html document are correct. # set testdir [file dirname $argv0] source $testdir/tester.tcl set ::testprefix e_dropview proc dropview_reopen_db {} { db close forcedelete test.db test.db2 sqlite3 db test.db db eval { ATTACH 'test.db2' AS aux; CREATE TABLE t1(a, b); INSERT INTO t1 VALUES('a main', 'b main'); CREATE VIEW v1 AS SELECT * FROM t1; CREATE VIEW v2 AS SELECT * FROM t1; CREATE TEMP TABLE t1(a, b); INSERT INTO temp.t1 VALUES('a temp', 'b temp'); CREATE VIEW temp.v1 AS SELECT * FROM t1; CREATE TABLE aux.t1(a, b); INSERT INTO aux.t1 VALUES('a aux', 'b aux'); CREATE VIEW aux.v1 AS SELECT * FROM t1; CREATE VIEW aux.v2 AS SELECT * FROM t1; CREATE VIEW aux.v3 AS SELECT * FROM t1; } } proc list_all_views {{db db}} { set res [list] $db eval { PRAGMA database_list } { set tbl "$name.sqlite_master" if {$name == "temp"} { set tbl sqlite_temp_master } set sql "SELECT '$name.' || name FROM $tbl WHERE type = 'view'" lappend res {*}[$db eval $sql] } set res } proc list_all_data {{db db}} { set res [list] $db eval { PRAGMA database_list } { set tbl "$name.sqlite_master" if {$name == "temp"} { set tbl sqlite_temp_master } db eval "SELECT '$name.' || name AS x FROM $tbl WHERE type = 'table'" { lappend res [list $x [db eval "SELECT * FROM $x"]] } } set res } proc do_dropview_tests {nm args} { uplevel do_select_tests $nm $args } # EVIDENCE-OF: R-53136-36436 -- syntax diagram drop-view-stmt # # All paths in the syntax diagram for DROP VIEW are tested by tests 1.*. # do_dropview_tests 1 -repair { dropview_reopen_db } -tclquery { list_all_views } { 1 "DROP VIEW v1" {main.v1 main.v2 aux.v1 aux.v2 aux.v3} 2 "DROP VIEW v2" {main.v1 temp.v1 aux.v1 aux.v2 aux.v3} 3 "DROP VIEW main.v1" {main.v2 temp.v1 aux.v1 aux.v2 aux.v3} 4 "DROP VIEW main.v2" {main.v1 temp.v1 aux.v1 aux.v2 aux.v3} 5 "DROP VIEW IF EXISTS v1" {main.v1 main.v2 aux.v1 aux.v2 aux.v3} 6 "DROP VIEW IF EXISTS v2" {main.v1 temp.v1 aux.v1 aux.v2 aux.v3} 7 "DROP VIEW IF EXISTS main.v1" {main.v2 temp.v1 aux.v1 aux.v2 aux.v3} 8 "DROP VIEW IF EXISTS main.v2" {main.v1 temp.v1 aux.v1 aux.v2 aux.v3} } # EVIDENCE-OF: R-27002-52307 The DROP VIEW statement removes a view # created by the CREATE VIEW statement. # dropview_reopen_db do_execsql_test 2.1 { CREATE VIEW "new view" AS SELECT * FROM t1 AS x, t1 AS y; SELECT * FROM "new view"; } {{a main} {b main} {a main} {b main}} do_execsql_test 2.2 {; SELECT * FROM sqlite_master WHERE name = 'new view'; } { view {new view} {new view} 0 {CREATE VIEW "new view" AS SELECT * FROM t1 AS x, t1 AS y} } do_execsql_test 2.3 { DROP VIEW "new view"; SELECT * FROM sqlite_master WHERE name = 'new view'; } {} do_catchsql_test 2.4 { SELECT * FROM "new view" } {1 {no such table: new view}} # EVIDENCE-OF: R-00359-41639 The view definition is removed from the # database schema, but no actual data in the underlying base tables is # modified. # # For each view in the database, check that it can be queried. Then drop # it. Check that it can no longer be queried and is no longer listed # in any schema table. Then check that the contents of the db tables have # not changed # set databasedata [list_all_data] do_execsql_test 3.1.0 { SELECT * FROM temp.v1 } {{a temp} {b temp}} do_execsql_test 3.1.1 { DROP VIEW temp.v1 } {} do_catchsql_test 3.1.2 { SELECT * FROM temp.v1 } {1 {no such table: temp.v1}} do_test 3.1.3 { list_all_views } {main.v1 main.v2 aux.v1 aux.v2 aux.v3} do_test 3.1.4 { list_all_data } $databasedata do_execsql_test 3.2.0 { SELECT * FROM v1 } {{a main} {b main}} do_execsql_test 3.2.1 { DROP VIEW v1 } {} do_catchsql_test 3.2.2 { SELECT * FROM main.v1 } {1 {no such table: main.v1}} do_test 3.2.3 { list_all_views } {main.v2 aux.v1 aux.v2 aux.v3} do_test 3.2.4 { list_all_data } $databasedata do_execsql_test 3.3.0 { SELECT * FROM v2 } {{a main} {b main}} do_execsql_test 3.3.1 { DROP VIEW v2 } {} do_catchsql_test 3.3.2 { SELECT * FROM main.v2 } {1 {no such table: main.v2}} do_test 3.3.3 { list_all_views } {aux.v1 aux.v2 aux.v3} do_test 3.3.4 { list_all_data } $databasedata do_execsql_test 3.4.0 { SELECT * FROM v1 } {{a aux} {b aux}} do_execsql_test 3.4.1 { DROP VIEW v1 } {} do_catchsql_test 3.4.2 { SELECT * FROM v1 } {1 {no such table: v1}} do_test 3.4.3 { list_all_views } {aux.v2 aux.v3} do_test 3.4.4 { list_all_data } $databasedata do_execsql_test 3.4.0 { SELECT * FROM aux.v2 } {{a aux} {b aux}} do_execsql_test 3.4.1 { DROP VIEW aux.v2 } {} do_catchsql_test 3.4.2 { SELECT * FROM aux.v2 } {1 {no such table: aux.v2}} do_test 3.4.3 { list_all_views } {aux.v3} do_test 3.4.4 { list_all_data } $databasedata do_execsql_test 3.5.0 { SELECT * FROM v3 } {{a aux} {b aux}} do_execsql_test 3.5.1 { DROP VIEW v3 } {} do_catchsql_test 3.5.2 { SELECT * FROM v3 } {1 {no such table: v3}} do_test 3.5.3 { list_all_views } {} do_test 3.5.4 { list_all_data } $databasedata # EVIDENCE-OF: R-25558-37487 If the specified view cannot be found and # the IF EXISTS clause is not present, it is an error. # do_dropview_tests 4 -repair { dropview_reopen_db } -errorformat { no such view: %s } { 1 "DROP VIEW xx" xx 2 "DROP VIEW main.xx" main.xx 3 "DROP VIEW temp.v2" temp.v2 } # EVIDENCE-OF: R-07490-32536 If the specified view cannot be found and # an IF EXISTS clause is present in the DROP VIEW statement, then the # statement is a no-op. # do_dropview_tests 5 -repair { dropview_reopen_db } -tclquery { list_all_views expr {[list_all_views] == "main.v1 main.v2 temp.v1 aux.v1 aux.v2 aux.v3"} } { 1 "DROP VIEW IF EXISTS xx" 1 2 "DROP VIEW IF EXISTS main.xx" 1 3 "DROP VIEW IF EXISTS temp.v2" 1 } finish_test