dynamic_config::StorageMock Class Reference

#include <userver/dynamic_config/storage_mock.hpp>

Detailed Description

Backing storage for dynamic_config::Source in tests and benchmarks.

Warning

Make sure that StorageMock outlives all the acquired pointers!

class DummyClient;
 
std::string DummyFunction(const dynamic_config::Snapshot& config) { return config[kDummyConfig].bar; }
 
UTEST(DynamicConfig, Snippet) {
    // The 'StorageMock' will only contain the specified configs, and nothing more
    dynamic_config::StorageMock storage{
        {kDummyConfig, {42, "what"}},
        {kIntConfig, 5},
    };
 
    EXPECT_EQ(DummyFunction(storage.GetSnapshot()), "what");
 
    // 'DummyClient' stores 'dynamic_config::Source' for access to latest configs
    DummyClient client{storage.GetSource()};
    UEXPECT_NO_THROW(client.DoStuff());
 
    storage.Extend({{kDummyConfig, {-10000, "invalid"}}});
    UEXPECT_THROW(client.DoStuff(), std::runtime_error);
}

const auto kJson = formats::json::FromString(R"( {"foo": 42, "bar": "what"} )");
 
UTEST(DynamicConfig, FromJson) {
    const dynamic_config::StorageMock storage{
        {kDummyConfig, kJson},
        {kIntConfig, 5},
    };
 
    const auto config = storage.GetSnapshot();
    EXPECT_EQ(config[kDummyConfig].foo, 42);
    EXPECT_EQ(config[kDummyConfig].bar, "what");
    EXPECT_EQ(config[kIntConfig], 5);
}

See also

dynamic_config::GetDefaultSource

dynamic_config::MakeDefaultStorage

Definition at line 67 of file storage_mock.hpp.

Public Member Functions
	StorageMock ()
	Create an empty StorageMock
	StorageMock (std::initializer_list< KeyValue > config_variables)
	StorageMock (const std::vector< KeyValue > &config_variables)
	Only store config_variables in the Config
	StorageMock (const DocsMap &defaults, const std::vector< KeyValue > &overrides)
	Store overrides in the Config, then parse all the remaining variables from defaults
	StorageMock (StorageMock &&) noexcept
StorageMock &	operator= (StorageMock &&) noexcept
void	Extend (const std::vector< KeyValue > &overrides)
	Update some config variables.
Source	GetSource () const &
Snapshot	GetSnapshot () const &
Snapshot	GetSource () &&=delete
Snapshot	GetSnapshot () &&=delete

Constructor & Destructor Documentation

StorageMock() [1/2]

dynamic_config::StorageMock::StorageMock

(

std::initializer_list< KeyValue >

config_variables

)

Only store config_variables in the Config. Use as: StorageMock{{kVariableKey1, value1}, {kVariableKey2, value2}}

StorageMock() [2/2]

dynamic_config::StorageMock::StorageMock	(	const DocsMap &	defaults,
		const std::vector< KeyValue > &	overrides )

Store overrides in the Config, then parse all the remaining variables from defaults

See also

dynamic_config::MakeDefaultStorage

---

The documentation for this class was generated from the following file:

• userver/dynamic_config/storage_mock.hpp