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56 lines
1.8 KiB
56 lines
1.8 KiB
// tests7.rs
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//
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// When building packages, some dependencies can neither be imported in
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// `Cargo.toml` nor be directly linked; some preprocesses varies from code
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// generation to set-up package-specific configurations.
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//
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// Cargo does not aim to replace other build tools, but it does integrate
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// with them with custom build scripts called `build.rs`. This file is
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// usually placed in the root of the project, while in this case the same
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// directory of this exercise.
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//
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// It can be used to:
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//
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// - Building a bundled C library.
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// - Finding a C library on the host system.
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// - Generating a Rust module from a specification.
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// - Performing any platform-specific configuration needed for the crate.
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//
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// When setting up configurations, we can `println!` in the build script
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// to tell Cargo to follow some instructions. The generic format is:
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//
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// println!("cargo:{}", your_command_in_string);
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//
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// Please see the official Cargo book about build scripts for more
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// information:
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// https://doc.rust-lang.org/cargo/reference/build-scripts.html
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//
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// In this exercise, we look for an environment variable and expect it to
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// fall in a range. You can look into the testcase to find out the details.
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//
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// You should NOT modify this file. Modify `build.rs` in the same directory
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// to pass this exercise.
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//
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// Execute `rustlings hint tests7` or use the `hint` watch subcommand for a
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// hint.
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// I AM NOT DONE
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fn main() {}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_success() {
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let timestamp = std::time::SystemTime::now()
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.duration_since(std::time::UNIX_EPOCH)
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.unwrap()
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.as_secs();
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let s = std::env::var("TEST_FOO").unwrap();
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let e: u64 = s.parse().unwrap();
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assert!(timestamp >= e && timestamp < e + 10);
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}
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}
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