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Add execute_with to TestExternalities (#3793)

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This function executes the given closure in a context where the test
externalities are set. This makes the srml tests easier to write, as the
test externalities need to be created anyway.
This commit is contained in:
Bastian Köcher
2019-10-10 15:01:30 +02:00
committed by GitHub
parent 34c7338211
commit 4dbc9265ee
44 changed files with 2369 additions and 2645 deletions
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substrate/srml/babe/src/tests.rs
+5 -7
View File
@@ -18,9 +18,7 @@
use super::*;
use mock::{new_test_ext, Babe, Test};
use sr_primitives::{
set_and_run_with_externalities, traits::OnFinalize, testing::{Digest, DigestItem},
};
use sr_primitives::{traits::OnFinalize, testing::{Digest, DigestItem}};
use session::ShouldEndSession;
const EMPTY_RANDOMNESS: [u8; 32] = [
@@ -54,14 +52,14 @@ fn empty_randomness_is_correct() {
#[test]
fn initial_values() {
set_and_run_with_externalities(&mut new_test_ext(vec![0, 1, 2, 3]), || {
new_test_ext(vec![0, 1, 2, 3]).execute_with(|| {
assert_eq!(Babe::authorities().len(), 4)
})
}
#[test]
fn check_module() {
set_and_run_with_externalities(&mut new_test_ext(vec![0, 1, 2, 3]), || {
new_test_ext(vec![0, 1, 2, 3]).execute_with(|| {
assert!(!Babe::should_end_session(0), "Genesis does not change sessions");
assert!(!Babe::should_end_session(200000),
"BABE does not include the block number in epoch calculations");
@@ -72,7 +70,7 @@ type System = system::Module<Test>;
#[test]
fn first_block_epoch_zero_start() {
set_and_run_with_externalities(&mut new_test_ext(vec![0, 1, 2, 3]), || {
new_test_ext(vec![0, 1, 2, 3]).execute_with(|| {
let genesis_slot = 100;
let first_vrf = [1; 32];
let pre_digest = make_pre_digest(
@@ -120,7 +118,7 @@ fn first_block_epoch_zero_start() {
#[test]
fn authority_index() {
set_and_run_with_externalities(&mut new_test_ext(vec![0, 1, 2, 3]), || {
new_test_ext(vec![0, 1, 2, 3]).execute_with(|| {
assert_eq!(
Babe::find_author((&[(BABE_ENGINE_ID, &[][..])]).into_iter().cloned()), None,
"Trivially invalid authorities are ignored")