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third_party/sqlite/src/test/e_dropview.test

Index: third_party/sqlite/src/test/e_dropview.test
diff --git a/third_party/sqlite/src/test/e_dropview.test b/third_party/sqlite/src/test/e_dropview.test
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+# 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-21739-51207 -- 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