Index: third_party/sqlite/sqlite-src-3080704/test/memsubsys2.test |
diff --git a/third_party/sqlite/sqlite-src-3080704/test/memsubsys2.test b/third_party/sqlite/sqlite-src-3080704/test/memsubsys2.test |
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index 0000000000000000000000000000000000000000..a40f4e4f03d44b518288725eac8767cc868619c6 |
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+# 2008 June 18 |
+# |
+# 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 contains tests of the memory allocation subsystem. |
+# |
+# $Id: memsubsys2.test,v 1.2 2008/08/12 15:21:12 drh Exp $ |
+ |
+set testdir [file dirname $argv0] |
+source $testdir/tester.tcl |
+sqlite3_reset_auto_extension |
+ |
+# This procedure constructs a new database in test.db. It fills |
+# this database with many small records (enough to force multiple |
+# rebalance operations in the btree-layer and to require a large |
+# page cache), verifies correct results, then returns. |
+# |
+proc build_test_db {testname pragmas} { |
+ catch {db close} |
+ forcedelete test.db test.db-journal |
+ sqlite3 db test.db |
+ db eval $pragmas |
+ db eval { |
+ CREATE TABLE t1(x, y); |
+ CREATE TABLE t2(a, b); |
+ CREATE INDEX i1 ON t1(x,y); |
+ INSERT INTO t1 VALUES(1, 100); |
+ INSERT INTO t1 VALUES(2, 200); |
+ } |
+ for {set i 2} {$i<5000} {incr i $i} { |
+ db eval {INSERT INTO t2 SELECT * FROM t1} |
+ db eval {INSERT INTO t1 SELECT a+$i, a+b*100 FROM t2} |
+ db eval {DELETE FROM t2} |
+ } |
+ do_test $testname.1 { |
+ db eval {SELECT count(*) FROM t1} |
+ } 8192 |
+ integrity_check $testname.2 |
+} |
+ |
+# Reset all of the highwater marks. |
+# |
+proc reset_highwater_marks {} { |
+ sqlite3_status SQLITE_STATUS_MEMORY_USED 1 |
+ sqlite3_status SQLITE_STATUS_MALLOC_SIZE 1 |
+ sqlite3_status SQLITE_STATUS_PAGECACHE_USED 1 |
+ sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 1 |
+ sqlite3_status SQLITE_STATUS_PAGECACHE_SIZE 1 |
+ sqlite3_status SQLITE_STATUS_SCRATCH_USED 1 |
+ sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 1 |
+ sqlite3_status SQLITE_STATUS_SCRATCH_SIZE 1 |
+ sqlite3_status SQLITE_STATUS_PARSER_STACK 1 |
+} |
+ |
+# Test 1: Verify that calling sqlite3_malloc(0) returns a NULL |
+# pointer. |
+# |
+set highwater [sqlite3_memory_highwater 0] |
+do_test memsubsys2-1.1 { |
+ sqlite3_malloc 0 |
+} {0} |
+do_test memsubsys2-1.2 { |
+ sqlite3_memory_highwater 0 |
+} $highwater |
+ |
+ |
+# Test 2: Verify that the highwater mark increases after a large |
+# allocation. |
+# |
+sqlite3_memory_highwater 1 |
+set highwater [sqlite3_memory_highwater 0] |
+do_test memsubsys2-2.1 { |
+ sqlite3_free [set x [sqlite3_malloc 100000]] |
+ expr {$x!="0"} |
+} {1} |
+do_test memsubsys2-2.2 { |
+ expr {[sqlite3_memory_highwater 0]>=[sqlite3_memory_used]+$highwater} |
+} {1} |
+ |
+# Test 3: Verify that turning of memstatus disables the statistics |
+# tracking. |
+# |
+db close |
+sqlite3_shutdown |
+sqlite3_config_memstatus 0 |
+sqlite3_initialize |
+reset_highwater_marks |
+set highwater [sqlite3_memory_highwater 0] |
+do_test memsubsys2-3.1 { |
+ set highwater |
+} {0} |
+do_test memsubsys2-3.2 { |
+ sqlite3_malloc 0 |
+} {0} |
+do_test memsubsys2-3.3 { |
+ sqlite3_memory_highwater 0 |
+} {0} |
+do_test memsubsys2-3.4 { |
+ sqlite3_memory_used |
+} {0} |
+do_test memsubsys2-3.5 { |
+ set ::allocation [sqlite3_malloc 100000] |
+ expr {$::allocation!="0"} |
+} {1} |
+do_test memsubsys2-3.6 { |
+ sqlite3_memory_highwater 0 |
+} {0} |
+do_test memsubsys2-3.7 { |
+ sqlite3_memory_used |
+} {0} |
+do_test memsubsys2-3.8 { |
+ sqlite3_free $::allocation |
+} {} |
+do_test memsubsys2-3.9 { |
+ sqlite3_free 0 |
+} {} |
+ |
+ |
+# Test 4: Verify that turning on memstatus reenables the statistics |
+# tracking. |
+# |
+sqlite3_shutdown |
+sqlite3_config_memstatus 1 |
+sqlite3_initialize |
+reset_highwater_marks |
+set highwater [sqlite3_memory_highwater 0] |
+do_test memsubsys2-4.1 { |
+ set highwater |
+} {0} |
+do_test memsubsys2-4.2 { |
+ sqlite3_malloc 0 |
+} {0} |
+do_test memsubsys2-4.3 { |
+ sqlite3_memory_highwater 0 |
+} {0} |
+do_test memsubsys2-4.4 { |
+ sqlite3_memory_used |
+} {0} |
+do_test memsubsys2-4.5 { |
+ set ::allocation [sqlite3_malloc 100000] |
+ expr {$::allocation!="0"} |
+} {1} |
+do_test memsubsys2-4.6 { |
+ expr {[sqlite3_memory_highwater 0]>=100000} |
+} {1} |
+do_test memsubsys2-4.7 { |
+ expr {[sqlite3_memory_used]>=100000} |
+} {1} |
+do_test memsubsys2-4.8 { |
+ sqlite3_free $::allocation |
+} {} |
+do_test memsubsys2-4.9 { |
+ sqlite3_free 0 |
+} {} |
+do_test memsubsys2-4.10 { |
+ expr {[sqlite3_memory_highwater 0]>=100000} |
+} {1} |
+do_test memsubsys2-4.11 { |
+ sqlite3_memory_used |
+} {0} |
+ |
+ |
+ |
+ |
+autoinstall_test_functions |
+finish_test |