Add integration tests

tests/includes.rs

@@ -0,0 +1,60 @@
+use super::*;
+use temptree::temptree;
+
+#[test]
+fn include_fails_without_unstable() {
+  let justfile_contents = r#"
+        # Include include.justfile
+        !include ./include.justfile
+
+        recipe_a: recipe_b
+            echo "A"
+        "#;
+
+  let include_justfile_contents = unindent(
+    r#"
+        recipe_b:
+            echo "B"
+        "#,
+  );
+
+  let tmp = temptree! {
+      "include.justfile": include_justfile_contents,
+  };
+
+  Test::with_tempdir(tmp)
+    .justfile(justfile_contents)
+    .status(EXIT_FAILURE)
+    .stderr("error: Expected character `=`\n  |\n2 | !include ./include.justfile\n  |  ^\n")
+    .run();
+}
+
+#[test]
+fn include_succeeds_with_unstable() {
+  let justfile_contents = r#"
+        # Include include.justfile
+        !include ./include.justfile
+
+        recipe_a: recipe_b
+            @echo "A"
+        "#;
+
+  let include_justfile_contents = unindent(
+    r#"
+        recipe_b:
+            @echo "B"
+        "#,
+  );
+
+  let tmp = temptree! {
+      "include.justfile": include_justfile_contents,
+  };
+
+  Test::with_tempdir(tmp)
+    .justfile(justfile_contents)
+    .arg("--unstable")
+    .arg("recipe_a")
+    .status(EXIT_SUCCESS)
+    .stdout("B\nA\n")
+    .run();
+}

tests/lib.rs

@@ -51,6 +51,7 @@ mod fallback;
 mod fmt;
 mod functions;
 mod ignore_comments;
+mod includes;
 mod init;
 #[cfg(unix)]
 mod interrupts;

tests/test.rs

@@ -165,6 +165,8 @@ impl Test {
 
 impl Test {
   pub(crate) fn run(self) -> TempDir {
+    let unstable = self.args.iter().any(|item| item.as_str() == "--unstable");
+
     if let Some(justfile) = &self.justfile {
       let justfile = unindent(justfile);
       fs::write(self.justfile_path(), justfile).unwrap();
@@ -246,7 +248,7 @@ impl Test {
     }
 
     if self.status == EXIT_SUCCESS {
-      test_round_trip(self.tempdir.path());
+      test_round_trip(self.tempdir.path(), unstable);
     }
 
     self.tempdir
@@ -260,14 +262,17 @@ struct Output<'a> {
   status: i32,
 }
 
-fn test_round_trip(tmpdir: &Path) {
+fn test_round_trip(tmpdir: &Path, unstable: bool) {
   println!("Reparsing...");
 
-  let output = Command::new(executable_path("just"))
-    .current_dir(tmpdir)
-    .arg("--dump")
-    .output()
-    .expect("just invocation failed");
+  let mut command = Command::new(executable_path("just"));
+  command.current_dir(tmpdir).arg("--dump");
+
+  if unstable {
+    command.arg("--unstable");
+  }
+
+  let output = command.output().expect("just invocation failed");
 
   if !output.status.success() {
     panic!("dump failed: {}", output.status);