148 lines
4.4 KiB
Rust
148 lines
4.4 KiB
Rust
// Copyright 2023 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use googletest::prelude::*;
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use googletest::Result;
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use indoc::indoc;
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#[test]
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fn elements_are_matches_vector() -> Result<()> {
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let value = vec![1, 2, 3];
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verify_that!(value, elements_are![eq(&1), eq(&2), eq(&3)])
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}
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#[test]
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fn elements_are_matches_slice() -> Result<()> {
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let value = vec![1, 2, 3];
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let slice = value.as_slice();
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verify_that!(slice, elements_are![eq(&1), eq(&2), eq(&3)])
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}
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#[test]
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fn elements_are_matches_array() -> Result<()> {
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verify_that!([1, 2, 3], elements_are![eq(1), eq(2), eq(3)])
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}
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#[test]
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fn elements_are_supports_trailing_comma() -> Result<()> {
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let value = vec![1, 2, 3];
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verify_that!(value, elements_are![eq(&1), eq(&2), eq(&3),])
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}
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#[test]
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fn elements_are_returns_no_match_when_expected_and_actual_sizes_differ() -> Result<()> {
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let value = vec![1, 2];
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verify_that!(value, not(elements_are![eq(&1), eq(&2), eq(&3)]))
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}
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#[test]
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fn elements_are_admits_matchers_without_static_lifetime() -> Result<()> {
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#[derive(Debug, PartialEq)]
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struct AStruct(i32);
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let expected_value = AStruct(123);
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verify_that!(vec![AStruct(123)], elements_are![eq(&expected_value)])
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}
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#[test]
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fn elements_are_matches_iterator_returning_by_value() -> Result<()> {
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#[derive(Debug, Copy, Clone)]
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struct Countdown(i32);
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impl Iterator for Countdown {
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type Item = i32;
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fn next(&mut self) -> Option<Self::Item> {
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match self.0 {
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0 => None,
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x => {
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self.0 -= 1;
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Some(x)
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}
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}
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}
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}
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verify_that!(Countdown(3), elements_are![eq(3), eq(2), eq(1)])
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}
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#[test]
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fn elements_are_produces_correct_failure_message() -> Result<()> {
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let result = verify_that!(vec![1, 4, 3], elements_are![eq(&1), eq(&2), eq(&3)]);
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verify_that!(
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result,
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err(displays_as(contains_substring(indoc!(
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"
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Value of: vec![1, 4, 3]
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Expected: has elements:
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0. is equal to 1
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1. is equal to 2
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2. is equal to 3
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Actual: [1, 4, 3],
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where element #1 is 4, which isn't equal to 2"
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))))
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)
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}
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#[test]
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fn elements_are_produces_correct_failure_message_nested() -> Result<()> {
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let result = verify_that!(
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vec![vec![0, 1], vec![1, 2]],
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elements_are![elements_are![eq(&1), eq(&2)], elements_are![eq(&2), eq(&3)]]
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);
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verify_that!(
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result,
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err(displays_as(contains_substring(indoc!(
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"
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Expected: has elements:
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0. has elements:
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0. is equal to 1
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1. is equal to 2
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1. has elements:
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0. is equal to 2
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1. is equal to 3
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Actual: [[0, 1], [1, 2]],
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where:
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* element #0 is [0, 1], where:
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* element #0 is 0, which isn't equal to 1
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* element #1 is 1, which isn't equal to 2
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* element #1 is [1, 2], where:
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* element #0 is 1, which isn't equal to 2
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* element #1 is 2, which isn't equal to 3"
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))))
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)
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}
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#[test]
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fn elements_are_explain_match_wrong_size() -> Result<()> {
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let matcher = elements_are![eq(&1)];
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verify_that!(matcher.explain_match(&vec![1, 2]), displays_as(eq("whose size is 2")))
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}
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fn create_matcher<'a>() -> impl Matcher<&'a Vec<i32>> {
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elements_are![eq(&1)]
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}
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#[test]
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fn elements_are_works_when_matcher_is_created_in_subroutine() -> Result<()> {
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verify_that!(vec![1], create_matcher())
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}
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#[test]
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fn elements_are_implicitly_called() -> Result<()> {
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verify_that!(vec![1, 2, 3], [eq(&1), eq(&2), eq(&3)])
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}
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#[test]
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fn elements_are_with_auto_eq() -> Result<()> {
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verify_that!(vec![1, 2, 3], [&1, &2, lt(&43)])
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}
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