46 lines
1.3 KiB
Rust
46 lines
1.3 KiB
Rust
use assert_cmd::prelude::*; // Add methods on commands
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use assert_fs::prelude::*;
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use predicates::prelude::*; // Used for writing assertions
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use std::process::Command; // Run programs
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#[test]
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fn file_doesnt_exist() -> Result<(), Box<dyn std::error::Error>> {
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let mut cmd = Command::cargo_bin("grrs")?;
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cmd.arg("foobar").arg("test/file/doesnt/exist");
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cmd.assert()
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.failure()
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.stderr(predicate::str::contains("could not read file"));
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Ok(())
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}
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#[test]
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fn find_content_in_file() -> Result<(), Box<dyn std::error::Error>> {
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let file = assert_fs::NamedTempFile::new("sample.txt")?;
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file.write_str("A test\nActual content\nMore content\nAnother test")?;
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let mut cmd = Command::cargo_bin("grrs")?;
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cmd.arg("test").arg(file.path());
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cmd.assert()
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.success()
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.stdout(predicate::str::contains("A test\nAnother test"));
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Ok(())
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}
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#[test]
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fn find_empty_string() -> Result<(), Box<dyn std::error::Error>> {
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let file = assert_fs::NamedTempFile::new("sample.txt")?;
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let content = "A test\nActual content\nMore content\nAnother test";
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file.write_str(content)?;
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let mut cmd = Command::cargo_bin("grrs")?;
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cmd.arg("").arg(file.path());
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cmd.assert()
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.success()
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.stdout(predicate::str::contains(content));
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Ok(())
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}
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