diff --git a/Cargo.lock b/Cargo.lock
index cf5ba01..09d5645 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,7 @@
 name = "j"
 version = "0.2.4"
 dependencies = [
+ "brev 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.16.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -26,6 +27,15 @@ name = "bitflags"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "brev"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "clap"
 version = "2.16.2"
@@ -41,6 +51,11 @@ dependencies = [
  "vec_map 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "glob"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "kernel32-sys"
 version = "0.2.2"
@@ -167,7 +182,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ca972c2ea5f742bfce5687b9aef75506a764f61d37f8f649047846a9686ddb66"
 "checksum ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "23ac7c30002a5accbf7e8987d0632fa6de155b7c3d39d0067317a391e00a2ef6"
 "checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
+"checksum brev 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "79571b60a8aa293f43b46370d8ba96fed28a5bee1303ea0e015d175ed0c63b40"
 "checksum clap 2.16.2 (registry+https://github.com/rust-lang/crates.io-index)" = "08aac7b078ec0a58e1d4b43cfb11d47001f8eb7c6f6f2bda4f5eed43c82491f1"
+"checksum glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "8be18de09a56b60ed0edf84bc9df007e30040691af7acd1c41874faac5895bfb"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "49247ec2a285bb3dcb23cbd9c35193c025e7251bfce77c1d5da97e6362dffe7f"
 "checksum libc 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)" = "408014cace30ee0f767b1c4517980646a573ec61a57957aeeabcac8ac0a02e8d"
diff --git a/Cargo.toml b/Cargo.toml
index b2659ed..49441cd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,3 +12,9 @@ regex = "^0.1.77"
 clap = "^2.0.0"
 tempdir = "^0.3.5"
 lazy_static = "^0.2.1"
+brev = "^0.1.6"
+
+[[test]]
+
+name = "integration"
+path = "src/integration.rs"
diff --git a/justfile b/justfile
index f1db8df..023f69f 100644
--- a/justfile
+++ b/justfile
@@ -1,12 +1,21 @@
 test:
 	cargo test --lib
 
+test-integration: build
+	cargo test --test integration
+
 test-quine:
 	cargo run -- quine clean
 
+test-integ:
+	cargo run -- --justfile integration-tests/justfile --working-directory integration-tests
+
 backtrace:
 	RUST_BACKTRACE=1 cargo test --lib
 
+build:
+	cargo build
+
 publish: clippy
 	# make sure version is up to date
 	grep 'version("'`sed -En 's/version = "([^"]+)"/\1/p' Cargo.toml`'")' src/app.rs
diff --git a/notes b/notes
index 94a3bc3..83570b2 100644
--- a/notes
+++ b/notes
@@ -1,19 +1,16 @@
 notes
 -----
 
-- get weird of that weird extra printing
-
 - integration testing
-  . run app with command line options and test output
+  . --show should not display variable and expression values
+  . test --list
+  . test that status code of failing test is reported
+  . run app with command line options and test full output (stderr and stdout)
   . exercise all features and all command line options
   . test that first recipe runs by default
   . test that a few error messages are correct
-
-- underline problem token in error messages
-
-- add context to unexpected_token error
-  "while parsing a recipe"
-  "while parsing an expression"
+  . test full output
+  . underline problem token in error messages
 
 - figure out argument passing:
   . flag:        j build --set a=hello
@@ -31,7 +28,8 @@ notes
 - before release:
 
 - rewrite grammar.txt
-- make it clear it's beta
+- make it clear it's beta, mention that, as a command runner
+  there is probably a higher than normal chance of disaster
 - change name back to 'just', suggest j as alias
 - change description to "a polyglot command runner"?
 - update readme
@@ -57,7 +55,7 @@ notes
     for contributing
 - vim and emacs syntax hilighting (use makefile syntax hilighting for now)
 - make sure there isn't any unused code
-- ask users to contribute their justfiles
+- ask users to contribute their justfiles as tests
 - try to get some users
   . facebook friends
   . irc
@@ -65,13 +63,13 @@ notes
 
 enhancements:
 
-- add post requirements:
-  # do c then a then b
-  a: c b~
+- save result of commands in variables
+- iteration: {{x for x in y}}
 - allow calling recipes in a justfile in a different directory:
   . just ../foo  # ../justfile:foo
   . just xyz/foo # xyz/justfile:foo
   . just xyz/    # xyz/justfile:DEFAULT
-  . get all directories, if more than one, fork just for each
 - allow setting and exporting environment variables
 - indentation or slash for line continuation
+- figure out some way to allow changing directories in
+  plain recipes
diff --git a/src/integration.rs b/src/integration.rs
new file mode 100644
index 0000000..0675383
--- /dev/null
+++ b/src/integration.rs
@@ -0,0 +1,63 @@
+extern crate tempdir;
+extern crate brev;
+
+use tempdir::TempDir;
+use std::process::Command;
+
+fn integration_test(
+  name:            &str,
+  args:            &[&str],
+  justfile:        &str,
+  expected_status: i32,
+  expected_stdout: &str,
+  expected_stderr: &str,
+) {
+  let tmp = TempDir::new(name)
+    .unwrap_or_else(|err| panic!("tmpdir: failed to create temporary directory: {}", err));
+  let mut path = tmp.path().to_path_buf();
+  path.push("justfile");
+  brev::dump(path, justfile);
+  let mut binary = std::env::current_dir().unwrap();
+  binary.push("./target/debug/j");
+  let output = Command::new(binary)
+    .current_dir(tmp.path())
+    .args(args)
+    .output()
+    .expect("j invocation failed");
+
+  let mut failure = false;
+
+  let status = output.status.code().unwrap();
+  if status != expected_status {
+    println!("bad status: {} != {}", status, expected_status);
+    failure = true;
+  }
+
+  let stdout = std::str::from_utf8(&output.stdout).unwrap();
+  if stdout != expected_stdout {
+    println!("bad stdout: {:?} != {:?}", stdout, expected_stdout);
+    failure = true;
+  }
+
+  let stderr = std::str::from_utf8(&output.stderr).unwrap();
+  if stderr != expected_stderr {
+    println!("bad stderr: {:?} != {:?}", stderr, expected_stderr);
+    failure = true;
+  }
+
+  if failure {
+    panic!("test failed");
+  }
+}
+
+#[test]
+fn simple() {
+  integration_test(
+    "simple",
+    &[],
+    "default:\n echo hello",
+    0,
+    "hello\n",
+    "echo hello\n",
+  )
+}