81 lines
2.1 KiB
Rust
81 lines
2.1 KiB
Rust
// Copyright 2022 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 crate::{
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description::Description,
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matcher::{Matcher, MatcherBase, MatcherResult},
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};
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use std::fmt::Debug;
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/// Matches anything. This matcher always succeeds.
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///
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/// This is useful to check if `actual` matches the specific structure (like
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/// `Some(...)`) but without caring about the internal value.
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///
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/// ```
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/// # use googletest::prelude::*;
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/// # fn should_pass() -> Result<()> {
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/// let option = Some("Some value");
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/// verify_that!(option, some(anything()))?;
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/// # Ok(())
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/// # }
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/// # should_pass().unwrap();
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/// ```
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pub fn anything() -> Anything {
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Anything
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}
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#[derive(MatcherBase)]
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pub struct Anything;
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impl<T: Debug + Copy> Matcher<T> for Anything {
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fn matches(&self, _: T) -> MatcherResult {
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MatcherResult::Match
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}
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fn describe(&self, matcher_result: MatcherResult) -> Description {
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match matcher_result {
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MatcherResult::Match => "is anything".into(),
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MatcherResult::NoMatch => "never matches".into(),
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use crate::prelude::*;
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use crate::Result;
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#[test]
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fn anything_matches_i32() -> Result<()> {
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let value = 32;
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verify_that!(value, anything())?;
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Ok(())
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}
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#[test]
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fn anything_matches_str() -> Result<()> {
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let value = "32";
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verify_that!(value, anything())?;
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Ok(())
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}
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#[test]
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fn anything_matches_option() -> Result<()> {
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let value = Some(32);
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verify_that!(value, some(anything()))?;
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Ok(())
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}
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}
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