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itconfig/itconfig_tests/tests/config_macro.rs

424 lines
9.1 KiB
Rust

use std::env;
use std::env::VarError;
#[macro_use]
extern crate itconfig;
#[test]
#[should_panic(expected = "Cannot read \"MISS_VARIABLE\" environment variable")]
fn should_panic_if_miss_env_variable() {
config! {
MISS_VARIABLE: bool,
}
cfg::init();
}
#[test]
fn one_variable() {
env::set_var("DEBUG", "t");
config! {
DEBUG: bool,
}
cfg::init();
assert_eq!(cfg::DEBUG(), true);
env::remove_var("DEBUG");
}
#[test]
fn one_variable_with_default_value() {
config! {
DEBUG: bool => true,
}
cfg::init();
assert_eq!(cfg::DEBUG(), true);
}
#[test]
fn few_variables_with_default_value() {
config! {
FOO: bool => true,
BAR: bool => false,
}
cfg::init();
assert_eq!(cfg::FOO(), true);
assert_eq!(cfg::BAR(), false);
}
#[test]
fn different_types_with_default_value() {
config! {
NUMBER: i32 => 30,
BOOL: bool => true,
STR: String => "str",
STRING: String => "string".to_string(),
}
cfg::init();
assert_eq!(cfg::NUMBER(), 30);
assert_eq!(cfg::BOOL(), true);
assert_eq!(cfg::STR(), "str".to_string());
assert_eq!(cfg::STRING(), "string".to_string());
}
#[test]
fn convert_bool_type_value_from_env() {
env::set_var("T_BOOL", "t");
env::set_var("TRUE_BOOL", "true");
env::set_var("NUM_BOOL", "1");
env::set_var("ON_BOOL", "on");
env::set_var("CAMEL_CASE", "True");
env::set_var("FALSE_BOOL", "false");
config! {
T_BOOL: bool,
TRUE_BOOL: bool,
NUM_BOOL: bool,
ON_BOOL: bool,
CAMEL_CASE: bool,
FALSE_BOOL: bool,
}
cfg::init();
assert_eq!(cfg::T_BOOL(), true);
assert_eq!(cfg::TRUE_BOOL(), true);
assert_eq!(cfg::NUM_BOOL(), true);
assert_eq!(cfg::ON_BOOL(), true);
assert_eq!(cfg::CAMEL_CASE(), true);
assert_eq!(cfg::FALSE_BOOL(), false);
}
#[test]
fn convert_number_type_value_from_env() {
env::set_var("I8", "10");
env::set_var("I16", "10");
env::set_var("I32", "10");
env::set_var("I64", "10");
env::set_var("I128", "10");
env::set_var("ISIZE","10");
env::set_var("U8", "10");
env::set_var("U16", "10");
env::set_var("U32", "10");
env::set_var("U64", "10");
env::set_var("U128", "10");
env::set_var("USIZE","10");
env::set_var("F32", "10");
env::set_var("F64","10");
config! {
I8: i8,
I16: i16,
I32: i32,
I64: i64,
I128: i128,
ISIZE: isize,
U8: u8,
U16: u16,
U32: u32,
U64: u64,
U128: u128,
USIZE: usize,
F32: f32,
F64: f64,
}
cfg::init();
assert_eq!(cfg::I8(), 10);
assert_eq!(cfg::I16(), 10);
assert_eq!(cfg::I32(), 10);
assert_eq!(cfg::I64(), 10);
assert_eq!(cfg::ISIZE(), 10);
assert_eq!(cfg::U8(), 10);
assert_eq!(cfg::U16(), 10);
assert_eq!(cfg::U32(), 10);
assert_eq!(cfg::U64(), 10);
assert_eq!(cfg::USIZE(), 10);
assert_eq!(cfg::F32(), 10.0);
assert_eq!(cfg::F64(), 10.0);
}
#[test]
fn change_configuration_module_name() {
config! {
#![mod_name = custom_config_name]
DEBUG: bool => true,
}
custom_config_name::init();
assert_eq!(custom_config_name::DEBUG(), true);
}
#[test]
fn configuration_with_namespace() {
env::set_var("DB_HOST", "t");
config! {
DEBUG: bool => true,
DB {
HOST: bool,
PORT: bool => true,
USERNAME: bool => true,
}
APP {}
}
cfg::init();
assert_eq!(cfg::DEBUG(), true);
assert_eq!(cfg::DB::HOST(), true);
}
#[test]
fn configuration_with_nested_namespaces() {
config! {
FIRST {
SECOND {
THIRD {
FOO: u32 => 50,
}
}
}
}
cfg::init();
assert_eq!(cfg::FIRST::SECOND::THIRD::FOO(), 50);
}
#[cfg(feature = "meta_namespace")]
#[test]
fn configuration_namespaces_with_custom_meta() {
config! {
FIRST {
#[cfg(feature = "meta_namespace")]
SECOND {
THIRD {
FOO: u32 => 50,
}
}
}
}
cfg::init();
assert_eq!(cfg::FIRST::SECOND::THIRD::FOO(), 50);
}
#[test]
fn configuration_variables_and_namespace_in_lowercase() {
env::set_var("TESTING", "t");
env::set_var("NAMESPACE_FOO", "t");
config! {
testing: bool,
namespace {
foo: bool,
}
}
cfg::init();
assert_eq!(cfg::testing(), true);
assert_eq!(cfg::namespace::foo(), true);
}
#[test]
fn custom_environment_name_for_variable() {
env::set_var("MY_CUSTOM_NAME", "95");
config! {
#[env_name = "MY_CUSTOM_NAME"]
PER_PAGE: i32,
APP {
#[env_name = "MY_CUSTOM_NAME"]
RECIPES_PER_PAGE: i32,
}
}
cfg::init();
assert_eq!(cfg::PER_PAGE(), 95);
assert_eq!(cfg::APP::RECIPES_PER_PAGE(), 95);
}
#[test]
fn stranger_meta_data() {
env::set_var("MY_CUSTOM_NAME", "95");
config! {
#[cfg(feature = "postgres")]
#[env_name = "MY_CUSTOM_NAME"]
DATABASE_URL: String,
#[cfg(not(feature = "postgres"))]
#[env_name = "MY_CUSTOM_NAME"]
DATABASE_URL: i32,
}
cfg::init();
#[cfg(not(feature = "postgres"))]
assert_eq!(cfg::DATABASE_URL(), 95);
#[cfg(feature = "postgres")]
assert_eq!(cfg::DATABASE_URL(), "95");
}
#[test]
fn setting_default_env_variable() {
config! {
DEFAULT_ENV_STRING: String => "localhost",
DEFAULT_ENV_BOOLEAN: bool => true,
DEFAULT_ENV_UINT: u32 => 40,
DEFAULT_ENV_FLOAT: f64 => 40.9,
}
cfg::init();
assert_eq!(env::var("DEFAULT_ENV_STRING"), Ok("localhost".to_string()));
assert_eq!(env::var("DEFAULT_ENV_BOOLEAN"), Ok("true".to_string()));
assert_eq!(env::var("DEFAULT_ENV_UINT"), Ok("40".to_string()));
assert_eq!(env::var("DEFAULT_ENV_FLOAT"), Ok("40.9".to_string()));
}
#[test]
fn concatenate_environment_variables() {
env::set_var("POSTGRES_USERNAME", "user");
env::set_var("POSTGRES_PASSWORD", "pass");
env::set_var("POSTGRES_HOST", "localhost");
env::set_var("POSTGRES_DB", "test");
config! {
DATABASE_URL < (
"postgres://",
POSTGRES_USERNAME,
":",
POSTGRES_PASSWORD,
"@",
POSTGRES_HOST,
"/",
POSTGRES_DB,
),
}
cfg::init();
assert_eq!(cfg::DATABASE_URL(), String::from("postgres://user:pass@localhost/test"));
}
#[test]
fn setting_default_concat_env_variable() {
env::set_var("SETTING_DEFAULT_CONCAT_ENV_VARIABLE", "custom");
config! {
DEFAULT_CONCAT_ENV < (
"string",
"/",
SETTING_DEFAULT_CONCAT_ENV_VARIABLE,
),
}
cfg::init();
assert_eq!(env::var("DEFAULT_CONCAT_ENV"), Ok("string/custom".to_string()));
}
#[test]
#[should_panic(expected = "Cannot read \"PG_USERNAME\" environment variable")]
fn concatenate_not_defined_environment_variables() {
config! {
DATABASE_URL < (
"postgres://",
PG_USERNAME,
":",
PG_PASSWORD,
"@",
PG_HOST,
"/",
PG_DB,
),
}
cfg::init();
}
#[test]
fn default_value_for_concatenate_env_parameter() {
config! {
CONCATENATED_DATABASE_URL < (
"postgres://",
NOT_DEFINED_PG_USERNAME => "user",
":",
NOT_DEFINED_PG_PASSWORD => "pass",
"@",
NOT_DEFINED_PG_HOST => "localhost:5432",
"/",
NOT_DEFINED_PG_DB => "test",
),
}
cfg::init();
assert_eq!(
env::var("CONCATENATED_DATABASE_URL"),
Ok("postgres://user:pass@localhost:5432/test".to_string())
);
}
#[test]
fn envname_meta_for_concatenated_env_variable() {
config! {
#[env_name = "CUSTOM_CONCAT_ENVNAME"]
CONCAT_ENVVAR < (
"postgres://",
NOT_DEFINED_PG_USERNAME => "user",
":",
NOT_DEFINED_PG_PASSWORD => "pass",
"@",
NOT_DEFINED_PG_HOST => "localhost:5432",
"/",
NOT_DEFINED_PG_DB => "test",
),
}
cfg::init();
assert_eq!(
env::var("CUSTOM_CONCAT_ENVNAME"),
Ok("postgres://user:pass@localhost:5432/test".to_string())
);
assert_eq!(env::var("CONCAT_ENVVAR"), Err(VarError::NotPresent));
}
#[test]
fn concatenated_environment_variable_in_namespace() {
config! {
CONCATED_NAMESPACE {
CONCAT_ENVVAR < (
"postgres://",
NOT_DEFINED_PG_USERNAME => "user",
":",
NOT_DEFINED_PG_PASSWORD => "pass",
"@",
NOT_DEFINED_PG_HOST => "localhost:5432",
"/",
NOT_DEFINED_PG_DB => "test",
),
}
}
cfg::init();
assert_eq!(
env::var("CONCATED_NAMESPACE_CONCAT_ENVVAR"),
Ok("postgres://user:pass@localhost:5432/test".to_string())
);
assert_eq!(env::var("CONCAT_ENVVAR"), Err(VarError::NotPresent));
}