27 lines
962 B
Rust
27 lines
962 B
Rust
use std::env;
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fn main() {
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// Test that miri environment is isolated when communication is disabled.
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// (`MIRI_ENV_VAR_TEST` is set by the test harness.)
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assert_eq!(env::var("MIRI_ENV_VAR_TEST"), Err(env::VarError::NotPresent));
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// Test base state.
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println!("{:#?}", env::vars().collect::<Vec<_>>());
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assert_eq!(env::var("MIRI_TEST"), Err(env::VarError::NotPresent));
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// Set the variable.
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env::set_var("MIRI_TEST", "the answer");
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assert_eq!(env::var("MIRI_TEST"), Ok("the answer".to_owned()));
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println!("{:#?}", env::vars().collect::<Vec<_>>());
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// Change the variable.
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env::set_var("MIRI_TEST", "42");
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assert_eq!(env::var("MIRI_TEST"), Ok("42".to_owned()));
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println!("{:#?}", env::vars().collect::<Vec<_>>());
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// Remove the variable.
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env::remove_var("MIRI_TEST");
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assert_eq!(env::var("MIRI_TEST"), Err(env::VarError::NotPresent));
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println!("{:#?}", env::vars().collect::<Vec<_>>());
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}
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