1 files changed, 29 insertions, 0 deletions
diff --git a/crates/cargo-test-support/src/install.rs b/crates/cargo-test-support/src/install.rs
new file mode 100644
index 0000000..478b482
--- /dev/null
+++ b/crates/cargo-test-support/src/install.rs
@@ -0,0 +1,29 @@
+use crate::paths;
+use std::env::consts::EXE_SUFFIX;
+use std::path::{Path, PathBuf};
+
+/// Used by `cargo install` tests to assert an executable binary
+/// has been installed. Example usage:
+///
+///     assert_has_installed_exe(cargo_home(), "foo");
+#[track_caller]
+pub fn assert_has_installed_exe<P: AsRef<Path>>(path: P, name: &'static str) {
+    assert!(check_has_installed_exe(path, name));
+}
+
+#[track_caller]
+pub fn assert_has_not_installed_exe<P: AsRef<Path>>(path: P, name: &'static str) {
+    assert!(!check_has_installed_exe(path, name));
+}
+
+fn check_has_installed_exe<P: AsRef<Path>>(path: P, name: &'static str) -> bool {
+    path.as_ref().join("bin").join(exe(name)).is_file()
+}
+
+pub fn cargo_home() -> PathBuf {
+    paths::home().join(".cargo")
+}
+
+pub fn exe(name: &str) -> String {
+    format!("{}{}", name, EXE_SUFFIX)
+}