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authorAbseil Team <absl-team@google.com>2021-05-04 02:40:25 (GMT)
committerCJ Johnson <johnsoncj@google.com>2021-05-13 19:08:09 (GMT)
commit7e5a3a574ef454915c960b45a360cf2dfdb7c859 (patch)
tree10d962c578d4f939d14c95df3074be7a98a35637 /docs
parentf5e592d8ee5ffb1d9af5be7f715ce3576b8bf9c4 (diff)
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Move actions reference into independent document PiperOrigin-RevId: 371828549
Diffstat (limited to 'docs')
-rw-r--r--docs/_data/navigation.yml2
-rw-r--r--docs/gmock_cheat_sheet.md112
-rw-r--r--docs/reference/actions.md115
3 files changed, 118 insertions, 111 deletions
diff --git a/docs/_data/navigation.yml b/docs/_data/navigation.yml
index fdde283..6d3cd4f 100644
--- a/docs/_data/navigation.yml
+++ b/docs/_data/navigation.yml
@@ -23,6 +23,8 @@ nav:
items:
- title: "Matchers"
url: "/reference/matchers.html"
+ - title: "Actions"
+ url: "/reference/actions.html"
- title: "Testing FAQ"
url: "/faq.html"
- title: "Mocking FAQ"
diff --git a/docs/gmock_cheat_sheet.md b/docs/gmock_cheat_sheet.md
index cda9ddd..c1d1a50 100644
--- a/docs/gmock_cheat_sheet.md
+++ b/docs/gmock_cheat_sheet.md
@@ -228,117 +228,7 @@ See the [Matchers Reference](reference/matchers.md).
## Actions {#ActionList}
-**Actions** specify what a mock function should do when invoked.
-
-### Returning a Value
-
-| | |
-| :-------------------------------- | :-------------------------------------------- |
-| `Return()` | Return from a `void` mock function. |
-| `Return(value)` | Return `value`. If the type of `value` is different to the mock function's return type, `value` is converted to the latter type <i>at the time the expectation is set</i>, not when the action is executed. |
-| `ReturnArg<N>()` | Return the `N`-th (0-based) argument. |
-| `ReturnNew<T>(a1, ..., ak)` | Return `new T(a1, ..., ak)`; a different object is created each time. |
-| `ReturnNull()` | Return a null pointer. |
-| `ReturnPointee(ptr)` | Return the value pointed to by `ptr`. |
-| `ReturnRef(variable)` | Return a reference to `variable`. |
-| `ReturnRefOfCopy(value)` | Return a reference to a copy of `value`; the copy lives as long as the action. |
-| `ReturnRoundRobin({a1, ..., ak})` | Each call will return the next `ai` in the list, starting at the beginning when the end of the list is reached. |
-
-### Side Effects
-
-| | |
-| :--------------------------------- | :-------------------------------------- |
-| `Assign(&variable, value)` | Assign `value` to variable. |
-| `DeleteArg<N>()` | Delete the `N`-th (0-based) argument, which must be a pointer. |
-| `SaveArg<N>(pointer)` | Save the `N`-th (0-based) argument to `*pointer`. |
-| `SaveArgPointee<N>(pointer)` | Save the value pointed to by the `N`-th (0-based) argument to `*pointer`. |
-| `SetArgReferee<N>(value)` | Assign `value` to the variable referenced by the `N`-th (0-based) argument. |
-| `SetArgPointee<N>(value)` | Assign `value` to the variable pointed by the `N`-th (0-based) argument. |
-| `SetArgumentPointee<N>(value)` | Same as `SetArgPointee<N>(value)`. Deprecated. Will be removed in v1.7.0. |
-| `SetArrayArgument<N>(first, last)` | Copies the elements in source range [`first`, `last`) to the array pointed to by the `N`-th (0-based) argument, which can be either a pointer or an iterator. The action does not take ownership of the elements in the source range. |
-| `SetErrnoAndReturn(error, value)` | Set `errno` to `error` and return `value`. |
-| `Throw(exception)` | Throws the given exception, which can be any copyable value. Available since v1.1.0. |
-
-### Using a Function, Functor, or Lambda as an Action
-
-In the following, by "callable" we mean a free function, `std::function`,
-functor, or lambda.
-
-| | |
-| :---------------------------------- | :------------------------------------- |
-| `f` | Invoke f with the arguments passed to the mock function, where f is a callable. |
-| `Invoke(f)` | Invoke `f` with the arguments passed to the mock function, where `f` can be a global/static function or a functor. |
-| `Invoke(object_pointer, &class::method)` | Invoke the method on the object with the arguments passed to the mock function. |
-| `InvokeWithoutArgs(f)` | Invoke `f`, which can be a global/static function or a functor. `f` must take no arguments. |
-| `InvokeWithoutArgs(object_pointer, &class::method)` | Invoke the method on the object, which takes no arguments. |
-| `InvokeArgument<N>(arg1, arg2, ..., argk)` | Invoke the mock function's `N`-th (0-based) argument, which must be a function or a functor, with the `k` arguments. |
-
-The return value of the invoked function is used as the return value of the
-action.
-
-When defining a callable to be used with `Invoke*()`, you can declare any unused
-parameters as `Unused`:
-
-```cpp
-using ::testing::Invoke;
-double Distance(Unused, double x, double y) { return sqrt(x*x + y*y); }
-...
-EXPECT_CALL(mock, Foo("Hi", _, _)).WillOnce(Invoke(Distance));
-```
-
-`Invoke(callback)` and `InvokeWithoutArgs(callback)` take ownership of
-`callback`, which must be permanent. The type of `callback` must be a base
-callback type instead of a derived one, e.g.
-
-```cpp
- BlockingClosure* done = new BlockingClosure;
- ... Invoke(done) ...; // This won't compile!
-
- Closure* done2 = new BlockingClosure;
- ... Invoke(done2) ...; // This works.
-```
-
-In `InvokeArgument<N>(...)`, if an argument needs to be passed by reference,
-wrap it inside `std::ref()`. For example,
-
-```cpp
-using ::testing::InvokeArgument;
-...
-InvokeArgument<2>(5, string("Hi"), std::ref(foo))
-```
-
-calls the mock function's #2 argument, passing to it `5` and `string("Hi")` by
-value, and `foo` by reference.
-
-### Default Action
-
-| Matcher | Description |
-| :------------ | :----------------------------------------------------- |
-| `DoDefault()` | Do the default action (specified by `ON_CALL()` or the built-in one). |
-
-{: .callout .note}
-**Note:** due to technical reasons, `DoDefault()` cannot be used inside a
-composite action - trying to do so will result in a run-time error.
-
-### Composite Actions
-
-| | |
-| :----------------------------- | :------------------------------------------ |
-| `DoAll(a1, a2, ..., an)` | Do all actions `a1` to `an` and return the result of `an` in each invocation. The first `n - 1` sub-actions must return void and will receive a readonly view of the arguments. |
-| `IgnoreResult(a)` | Perform action `a` and ignore its result. `a` must not return void. |
-| `WithArg<N>(a)` | Pass the `N`-th (0-based) argument of the mock function to action `a` and perform it. |
-| `WithArgs<N1, N2, ..., Nk>(a)` | Pass the selected (0-based) arguments of the mock function to action `a` and perform it. |
-| `WithoutArgs(a)` | Perform action `a` without any arguments. |
-
-### Defining Actions
-
-| | |
-| :--------------------------------- | :-------------------------------------- |
-| `ACTION(Sum) { return arg0 + arg1; }` | Defines an action `Sum()` to return the sum of the mock function's argument #0 and #1. |
-| `ACTION_P(Plus, n) { return arg0 + n; }` | Defines an action `Plus(n)` to return the sum of the mock function's argument #0 and `n`. |
-| `ACTION_Pk(Foo, p1, ..., pk) { statements; }` | Defines a parameterized action `Foo(p1, ..., pk)` to execute the given `statements`. |
-
-The `ACTION*` macros cannot be used inside a function or class.
+See the [Actions Reference](reference/actions.md).
## Cardinalities {#CardinalityList}
diff --git a/docs/reference/actions.md b/docs/reference/actions.md
new file mode 100644
index 0000000..166d2a8
--- /dev/null
+++ b/docs/reference/actions.md
@@ -0,0 +1,115 @@
+# Actions Reference
+
+[**Actions**](../gmock_for_dummies.md#actions-what-should-it-do) specify what a
+mock function should do when invoked. This page lists the built-in actions
+provided by GoogleTest. All actions are defined in the `::testing` namespace.
+
+## Returning a Value
+
+| | |
+| :-------------------------------- | :-------------------------------------------- |
+| `Return()` | Return from a `void` mock function. |
+| `Return(value)` | Return `value`. If the type of `value` is different to the mock function's return type, `value` is converted to the latter type <i>at the time the expectation is set</i>, not when the action is executed. |
+| `ReturnArg<N>()` | Return the `N`-th (0-based) argument. |
+| `ReturnNew<T>(a1, ..., ak)` | Return `new T(a1, ..., ak)`; a different object is created each time. |
+| `ReturnNull()` | Return a null pointer. |
+| `ReturnPointee(ptr)` | Return the value pointed to by `ptr`. |
+| `ReturnRef(variable)` | Return a reference to `variable`. |
+| `ReturnRefOfCopy(value)` | Return a reference to a copy of `value`; the copy lives as long as the action. |
+| `ReturnRoundRobin({a1, ..., ak})` | Each call will return the next `ai` in the list, starting at the beginning when the end of the list is reached. |
+
+## Side Effects
+
+| | |
+| :--------------------------------- | :-------------------------------------- |
+| `Assign(&variable, value)` | Assign `value` to variable. |
+| `DeleteArg<N>()` | Delete the `N`-th (0-based) argument, which must be a pointer. |
+| `SaveArg<N>(pointer)` | Save the `N`-th (0-based) argument to `*pointer`. |
+| `SaveArgPointee<N>(pointer)` | Save the value pointed to by the `N`-th (0-based) argument to `*pointer`. |
+| `SetArgReferee<N>(value)` | Assign `value` to the variable referenced by the `N`-th (0-based) argument. |
+| `SetArgPointee<N>(value)` | Assign `value` to the variable pointed by the `N`-th (0-based) argument. |
+| `SetArgumentPointee<N>(value)` | Same as `SetArgPointee<N>(value)`. Deprecated. Will be removed in v1.7.0. |
+| `SetArrayArgument<N>(first, last)` | Copies the elements in source range [`first`, `last`) to the array pointed to by the `N`-th (0-based) argument, which can be either a pointer or an iterator. The action does not take ownership of the elements in the source range. |
+| `SetErrnoAndReturn(error, value)` | Set `errno` to `error` and return `value`. |
+| `Throw(exception)` | Throws the given exception, which can be any copyable value. Available since v1.1.0. |
+
+## Using a Function, Functor, or Lambda as an Action
+
+In the following, by "callable" we mean a free function, `std::function`,
+functor, or lambda.
+
+| | |
+| :---------------------------------- | :------------------------------------- |
+| `f` | Invoke f with the arguments passed to the mock function, where f is a callable. |
+| `Invoke(f)` | Invoke `f` with the arguments passed to the mock function, where `f` can be a global/static function or a functor. |
+| `Invoke(object_pointer, &class::method)` | Invoke the method on the object with the arguments passed to the mock function. |
+| `InvokeWithoutArgs(f)` | Invoke `f`, which can be a global/static function or a functor. `f` must take no arguments. |
+| `InvokeWithoutArgs(object_pointer, &class::method)` | Invoke the method on the object, which takes no arguments. |
+| `InvokeArgument<N>(arg1, arg2, ..., argk)` | Invoke the mock function's `N`-th (0-based) argument, which must be a function or a functor, with the `k` arguments. |
+
+The return value of the invoked function is used as the return value of the
+action.
+
+When defining a callable to be used with `Invoke*()`, you can declare any unused
+parameters as `Unused`:
+
+```cpp
+using ::testing::Invoke;
+double Distance(Unused, double x, double y) { return sqrt(x*x + y*y); }
+...
+EXPECT_CALL(mock, Foo("Hi", _, _)).WillOnce(Invoke(Distance));
+```
+
+`Invoke(callback)` and `InvokeWithoutArgs(callback)` take ownership of
+`callback`, which must be permanent. The type of `callback` must be a base
+callback type instead of a derived one, e.g.
+
+```cpp
+ BlockingClosure* done = new BlockingClosure;
+ ... Invoke(done) ...; // This won't compile!
+
+ Closure* done2 = new BlockingClosure;
+ ... Invoke(done2) ...; // This works.
+```
+
+In `InvokeArgument<N>(...)`, if an argument needs to be passed by reference,
+wrap it inside `std::ref()`. For example,
+
+```cpp
+using ::testing::InvokeArgument;
+...
+InvokeArgument<2>(5, string("Hi"), std::ref(foo))
+```
+
+calls the mock function's #2 argument, passing to it `5` and `string("Hi")` by
+value, and `foo` by reference.
+
+## Default Action
+
+| Matcher | Description |
+| :------------ | :----------------------------------------------------- |
+| `DoDefault()` | Do the default action (specified by `ON_CALL()` or the built-in one). |
+
+{: .callout .note}
+**Note:** due to technical reasons, `DoDefault()` cannot be used inside a
+composite action - trying to do so will result in a run-time error.
+
+## Composite Actions
+
+| | |
+| :----------------------------- | :------------------------------------------ |
+| `DoAll(a1, a2, ..., an)` | Do all actions `a1` to `an` and return the result of `an` in each invocation. The first `n - 1` sub-actions must return void and will receive a readonly view of the arguments. |
+| `IgnoreResult(a)` | Perform action `a` and ignore its result. `a` must not return void. |
+| `WithArg<N>(a)` | Pass the `N`-th (0-based) argument of the mock function to action `a` and perform it. |
+| `WithArgs<N1, N2, ..., Nk>(a)` | Pass the selected (0-based) arguments of the mock function to action `a` and perform it. |
+| `WithoutArgs(a)` | Perform action `a` without any arguments. |
+
+## Defining Actions
+
+| | |
+| :--------------------------------- | :-------------------------------------- |
+| `ACTION(Sum) { return arg0 + arg1; }` | Defines an action `Sum()` to return the sum of the mock function's argument #0 and #1. |
+| `ACTION_P(Plus, n) { return arg0 + n; }` | Defines an action `Plus(n)` to return the sum of the mock function's argument #0 and `n`. |
+| `ACTION_Pk(Foo, p1, ..., pk) { statements; }` | Defines a parameterized action `Foo(p1, ..., pk)` to execute the given `statements`. |
+
+The `ACTION*` macros cannot be used inside a function or class.