updated tests

integration-tests/bats/sql-shell.bats

@@ -42,11 +42,37 @@ teardown() {
     [[ "$output" =~ "+---------------------" ]] || false
 }
 
-@test "sql-shell: dolt sql shell has mysql db" {
+@test "sql-shell: dolt sql shell has mysql db and can create users" {
+    # there does not exist a mysql.db file
+    run ls
+    ! [[ "$output" =~ "mysql.db" ]] || false
+
+    # mysql database exists and has privilege tables
     run dolt sql <<< "show tables from mysql;"
     [ "$status" -eq "0" ]
     [[ "$output" =~ "user" ]] || false
     [[ "$output" =~ "role_edges" ]] || false
+
+    # show users, expect just root user
+    run dolt sql <<< "select user from mysql.user;"
+    [[ "$output" =~ "root" ]] || false
+    ! [[ "$output" =~ "new_user" ]] || false
+
+    # create a new user
+    run dolt sql <<< "create user new_user;"
+    [ "$status" -eq "0" ]
+
+    # there should now be a mysql.db file
+    run ls
+    [[ "$output" =~ "mysql.db" ]] || false
+
+    # show users, expect root and new_user
+    run dolt sql <<< "select user from mysql.user;"
+    [[ "$output" =~ "root" ]] || false
+    [[ "$output" =~ "new_user" ]] || false
+
+    # remove mysql.db just in case
+    rm -f mysql.db
 }
 
 @test "sql-shell: bad sql in sql shell should error" {