expectBackpackContains function
Assert that Backpack contains a specific key.
Implementation
void expectBackpackContains(String key, {dynamic value}) {
expect(
Backpack.instance.contains(key),
isTrue,
reason: 'Expected Backpack to contain key "$key"',
);
if (value != null) {
expect(
Backpack.instance.read(key),
value,
reason: 'Expected Backpack key "$key" to have value "$value"',
);
}
}