first integration test try

Cargo.lock

@@ -11,6 +11,7 @@ dependencies = [
  "log",
  "regex",
  "simplelog",
+ "tempfile",
 ]
 
 [[package]]
@@ -137,6 +138,17 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "getrandom"
+version = "0.1.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc587bc0ec293155d5bfa6b9891ec18a1e330c234f896ea47fbada4cadbe47e6"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi 0.9.0+wasi-snapshot-preview1",
+]
+
 [[package]]
 name = "hermit-abi"
 version = "0.1.17"
@@ -204,6 +216,12 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "ppv-lite86"
+version = "0.2.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.24"
@@ -222,6 +240,53 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "rand"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
+dependencies = [
+ "getrandom",
+ "libc",
+ "rand_chacha",
+ "rand_core",
+ "rand_hc",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "rand_hc"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
+dependencies = [
+ "rand_core",
+]
+
+[[package]]
+name = "redox_syscall"
+version = "0.1.57"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
+
 [[package]]
 name = "regex"
 version = "1.3.9"
@@ -240,6 +305,15 @@ version = "0.6.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
 
+[[package]]
+name = "remove_dir_all"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "simplelog"
 version = "0.8.0"
@@ -268,6 +342,20 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "tempfile"
+version = "3.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "rand",
+ "redox_syscall",
+ "remove_dir_all",
+ "winapi",
+]
+
 [[package]]
 name = "termcolor"
 version = "1.1.0"
@@ -293,7 +381,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
 dependencies = [
  "libc",
- "wasi",
+ "wasi 0.10.0+wasi-snapshot-preview1",
  "winapi",
 ]
 
@@ -303,6 +391,12 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
 
+[[package]]
+name = "wasi"
+version = "0.9.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
+
 [[package]]
 name = "wasi"
 version = "0.10.0+wasi-snapshot-preview1"

Cargo.toml

@@ -13,4 +13,7 @@ log = "0.4"
 simplelog = "0.8"
 chrono = "0.4"
 env_logger = "0.8"
-derive_builder = "0.9"
+derive_builder = "0.9"
+
+[dev-dependencies]
+tempfile = "3.1"

tests/delete_user_test.rs

@@ -0,0 +1,7 @@
+extern crate adduser;
+mod testfiles;
+
+#[test]
+fn test_test() {
+    assert_eq!(1, 1);
+}

tests/testfiles.rs

@@ -0,0 +1,46 @@
+use std::{env, path::Path};
+use std::{fs, path::PathBuf};
+
+use tempfile::TempDir;
+
+use std::ops::Deref;
+
+struct Fixture {
+    path: PathBuf,
+    source: PathBuf,
+    _tempdir: TempDir,
+}
+
+impl Fixture {
+    fn blank(fixture_filename: &str) -> Self {
+        // First, figure out the right file in `tests/fixtures/`:
+        let root_dir = &env::var("CARGO_MANIFEST_DIR").expect("$CARGO_MANIFEST_DIR");
+        let mut source = PathBuf::from(root_dir);
+        source.push("tests/fixtures");
+        source.push(&fixture_filename);
+
+        // The "real" path of the file is going to be under a temporary directory:
+        let tempdir = tempfile::tempdir().unwrap();
+        let mut path = PathBuf::from(&tempdir.path());
+        path.push(&fixture_filename);
+
+        Fixture {
+            _tempdir: tempdir,
+            source,
+            path,
+        }
+    }
+    fn copy(fixture_filename: &str) -> Self {
+        let fixture = Fixture::blank(fixture_filename);
+        fs::copy(&fixture.source, &fixture.path).unwrap();
+        fixture
+    }
+}
+
+impl Deref for Fixture {
+    type Target = Path;
+
+    fn deref(&self) -> &Self::Target {
+        self.path.deref()
+    }
+}