mirror of https://github.com/rust-lang/rust
55 lines
1.3 KiB
Rust
55 lines
1.3 KiB
Rust
//@ run-pass
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//@ ignore-wasm32 no processes
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//@ ignore-sgx no processes
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//@ ignore-vxworks no 'env'
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//@ ignore-fuchsia no 'env'
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use std::process::Command;
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use std::env;
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use std::collections::HashMap;
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#[cfg(all(unix, not(target_os="android")))]
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pub fn env_cmd() -> Command {
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Command::new("env")
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}
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#[cfg(target_os="android")]
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pub fn env_cmd() -> Command {
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let mut cmd = Command::new("/system/bin/sh");
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cmd.arg("-c").arg("set");
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cmd
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}
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#[cfg(windows)]
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pub fn env_cmd() -> Command {
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let mut cmd = Command::new("cmd");
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cmd.arg("/c").arg("set");
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cmd
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}
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fn main() {
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// save original environment
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let old_env = env::var_os("RUN_TEST_NEW_ENV");
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env::set_var("RUN_TEST_NEW_ENV", "123");
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// create filtered environment vector
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let filtered_env : HashMap<String, String> =
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env::vars().filter(|&(ref k, _)| k == "PATH").collect();
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let mut cmd = env_cmd();
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cmd.env_clear();
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cmd.envs(&filtered_env);
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// restore original environment
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match old_env {
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None => env::remove_var("RUN_TEST_NEW_ENV"),
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Some(val) => env::set_var("RUN_TEST_NEW_ENV", &val)
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}
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let result = cmd.output().unwrap();
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let output = String::from_utf8_lossy(&result.stdout);
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assert!(!output.contains("RUN_TEST_NEW_ENV"),
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"found RUN_TEST_NEW_ENV inside of:\n\n{}", output);
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}
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