Addresses #889

Additional tests to verify we handle provdel leaf entries correctly
(when we need to cross between leaf boundaries.

git-svn-id: file:///svn/tokudb@4400 c7de825b-a66e-492c-adef-691d508d4ae1

src/tests/cursor-more-than-a-leaf-provdel.c

+#include <db.h>
+#include <sys/stat.h>
+#include "test.h"
+
+static DB_ENV *env;
+static DB *db;
+DB_TXN *txn;
+
+const int num_insert = 25000;
+
+void setup (void) {
+    system("rm -rf " ENVDIR);
+    int r;
+    r=mkdir(ENVDIR, 0777);       CKERR(r);
+
+    r=db_env_create(&env, 0); CKERR(r);
+    env->set_errfile(env, stderr);
+#if USE_BDB
+    r=env->set_lk_max_objects(env, 2*num_insert); CKERR(r);
+#endif
+    r=env->set_lk_max_locks(env, 2*num_insert); CKERR(r);
+    r=env->open(env, ENVDIR, DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_MPOOL|DB_INIT_TXN|DB_CREATE|DB_PRIVATE, 0777); CKERR(r);
+    r=db_create(&db, env, 0); CKERR(r);
+
+    r=env->txn_begin(env, 0, &txn, 0); assert(r==0);
+    r=db->set_bt_compare(db, int_dbt_cmp); CKERR(r);
+    r=db->set_dup_compare(db, int_dbt_cmp); CKERR(r);
+    r=db->open(db, txn, "foo.db", 0, DB_BTREE, DB_CREATE, 0777); CKERR(r);
+    r=txn->commit(txn, 0);    assert(r==0);
+}
+
+void shutdown (void) {
+    int r;
+    r= db->close(db, 0); CKERR(r);
+    r= env->close(env, 0); CKERR(r);
+}
+
+void doit (BOOL committed_provdels) {
+    DBT key,data;
+    DBC *dbc;
+    int r;
+    int i;
+    int j;
+
+    r=env->txn_begin(env, 0, &txn, 0); CKERR(r);
+    for (i = 0; i < num_insert; i++) {
+        j = (i<<1) + 37;
+        r=db->put(db, txn, dbt_init(&key, &i, sizeof(i)), dbt_init(&data, &j, sizeof(j)), DB_YESOVERWRITE);
+    }
+    r=txn->commit(txn, 0);    CKERR(r);
+    r=env->txn_begin(env, 0, &txn, 0); CKERR(r);
+    r = db->cursor(db, txn, &dbc, 0);                           CKERR(r);
+    for (i = 0; i < num_insert; i++) {
+        j = (i<<1) + 37;
+        r = dbc->c_get(dbc, &key, &data, DB_NEXT); CKERR(r);
+        assert(*(int*)key.data == i);
+        assert(*(int*)data.data == j);
+        r = dbc->c_del(dbc, 0); CKERR(r);
+    }
+    r = dbc->c_get(dbc, &key, &data, DB_NEXT); CKERR2(r, DB_NOTFOUND);
+    r = dbc->c_get(dbc, &key, &data, DB_FIRST); CKERR2(r, DB_NOTFOUND);
+    if (committed_provdels) {
+        r = dbc->c_close(dbc);                                      CKERR(r);
+        r=txn->commit(txn, 0);    CKERR(r);
+        r=env->txn_begin(env, 0, &txn, 0); CKERR(r);
+        r = db->cursor(db, txn, &dbc, 0);                           CKERR(r);
+    }
+    i=2*num_insert;
+    j=(i<<1)+37;
+    r=db->put(db, txn, dbt_init(&key, &i, sizeof(i)), dbt_init(&data, &j, sizeof(j)), DB_YESOVERWRITE);
+
+    r = dbc->c_get(dbc, dbt_init(&key, NULL, 0), dbt_init(&data, NULL, 0), DB_FIRST); CKERR(r);
+    assert(*(int*)key.data == i);
+    assert(*(int*)data.data == j);
+    r = dbc->c_close(dbc);                                      CKERR(r);
+    r=txn->commit(txn, 0);    CKERR(r);
+}
+
+int main (int argc, const char *argv[]) {
+    parse_args(argc, argv);
+
+    setup();
+    doit(TRUE);
+    shutdown();
+    setup();
+    doit(FALSE);
+    shutdown();
+
+    return 0;
+}
+