build(rust): vendor googletest crate

third_party/crates/googletest-0.14.3/tests/composition_test.rs

@@ -0,0 +1,187 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use googletest::prelude::*;
+use googletest::Result;
+
+#[test]
+fn all_matcher_works_as_inner_matcher() -> Result<()> {
+    let value = vec![1];
+    verify_that!(value, contains_each![all!(gt(&0), lt(&2))])
+}
+
+#[test]
+fn matches_pattern_works_as_inner_matcher() -> Result<()> {
+    #[derive(Debug)]
+    struct AStruct(i32);
+    verify_that!(vec![AStruct(123)], contains_each![matches_pattern!(&AStruct(eq(123)))])
+}
+
+#[test]
+fn matches_pattern_works_with_property_as_inner_matcher() -> Result<()> {
+    #[derive(Debug)]
+    struct AStruct(i32);
+    impl AStruct {
+        fn get_value(&self) -> i32 {
+            self.0
+        }
+    }
+    verify_that!(
+        vec![AStruct(123)],
+        contains_each![matches_pattern!(&AStruct {
+            get_value(): eq(123)
+        })]
+    )
+}
+
+#[test]
+fn contains_each_works_as_inner_matcher() -> Result<()> {
+    #[derive(Debug)]
+    struct AStruct(Vec<i32>);
+    verify_that!(AStruct(vec![123]), matches_pattern!(&AStruct(ref contains_each![eq(&123)])))
+}
+
+#[test]
+fn pointwise_works_as_inner_matcher() -> Result<()> {
+    #[derive(Debug)]
+    struct AStruct(Vec<i32>);
+    verify_that!(AStruct(vec![123]), matches_pattern!(&AStruct(ref pointwise!(eq, [&123]))))
+}
+
+#[test]
+fn elements_are_works_as_inner_matcher() -> Result<()> {
+    #[derive(Debug)]
+    struct AStruct(Vec<i32>);
+    verify_that!(AStruct(vec![123]), matches_pattern!(&AStruct(ref elements_are![eq(&123)])))
+}
+
+#[test]
+fn tuple_works_as_inner_matcher() -> Result<()> {
+    verify_that!(vec![(123,)], elements_are![(eq(&123),)])
+}
+
+#[test]
+fn matches_struct_with_method_returning_option_of_non_copy_value() -> Result<()> {
+    #[derive(Debug)]
+    struct AnInnerStruct;
+
+    #[derive(Debug)]
+    struct AStruct;
+
+    impl AStruct {
+        fn get_value(&self) -> Option<AnInnerStruct> {
+            Some(AnInnerStruct)
+        }
+    }
+
+    verify_that!(
+        AStruct,
+        matches_pattern!(&AStruct {
+            get_value(): ref some(matches_pattern!(&AnInnerStruct))
+        })
+    )
+}
+
+#[test]
+fn matches_struct_with_method_returning_option_of_non_copy_enum() -> Result<()> {
+    #[derive(Debug)]
+    enum AnInnerStruct {
+        ThisCase,
+        #[allow(unused)]
+        ThatCase,
+    }
+    #[derive(Debug)]
+    struct AStruct;
+    impl AStruct {
+        fn get_value(&self) -> Option<AnInnerStruct> {
+            Some(AnInnerStruct::ThisCase)
+        }
+    }
+
+    verify_that!(
+        AStruct,
+        matches_pattern!(&AStruct {
+            get_value(): ref some(matches_pattern!(&AnInnerStruct::ThisCase))
+        })
+    )
+}
+
+#[test]
+fn matches_struct_with_method_returning_option_ref_binding_mode() -> Result<()> {
+    #[derive(Debug)]
+    struct AnInnerStruct;
+    #[derive(Debug)]
+    struct AStruct;
+    impl AStruct {
+        fn get_value(&self) -> Option<AnInnerStruct> {
+            Some(AnInnerStruct)
+        }
+    }
+
+    verify_that!(
+        AStruct,
+        matches_pattern!(AStruct {
+            get_value(): some(matches_pattern!(AnInnerStruct))
+        })
+    )
+}
+
+#[test]
+fn matches_struct_with_method_returning_option_enum_ref_binding_mode() -> Result<()> {
+    #[derive(Debug)]
+    enum AnInnerStruct {
+        ThisCase,
+        #[allow(unused)]
+        ThatCase,
+    }
+    #[derive(Debug)]
+    struct AStruct;
+    impl AStruct {
+        fn get_value(&self) -> Option<AnInnerStruct> {
+            Some(AnInnerStruct::ThisCase)
+        }
+    }
+
+    verify_that!(
+        AStruct,
+        matches_pattern!(AStruct {
+            get_value(): some(matches_pattern!(AnInnerStruct::ThisCase))
+        })
+    )
+}
+
+#[test]
+fn matches_struct_with_property_against_predicate() -> Result<()> {
+    #[derive(Debug)]
+    enum AnInnerStruct {
+        ThisCase,
+        #[allow(unused)]
+        ThatCase,
+    }
+
+    #[derive(Debug)]
+    struct AStruct;
+    impl AStruct {
+        fn get_value(&self) -> AnInnerStruct {
+            AnInnerStruct::ThisCase
+        }
+    }
+
+    verify_that!(
+        AStruct,
+        matches_pattern!(AStruct {
+            get_value(): predicate(|_: &_| true)
+        })
+    )
+}