diff --git a/Cargo.lock b/Cargo.lock
index 8aa6af0..564e768 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -35,6 +35,34 @@ version = "1.0.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "216261ddc8289130e551ddcd5ce8a064710c0d064a4d2895c67151c92b5443f6"
 
+[[package]]
+name = "assert_cmd"
+version = "2.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba45b8163c49ab5f972e59a8a5a03b6d2972619d486e19ec9fe744f7c2753d3c"
+dependencies = [
+ "bstr 1.0.1",
+ "doc-comment",
+ "predicates",
+ "predicates-core",
+ "predicates-tree",
+ "wait-timeout",
+]
+
+[[package]]
+name = "assert_fs"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1429b32ede0cb31afd9f6cb1e8f06f1e32a4c75ed9290f9f4d3cda0c5981e061"
+dependencies = [
+ "doc-comment",
+ "globwalk",
+ "predicates",
+ "predicates-core",
+ "predicates-tree",
+ "tempfile",
+]
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -79,6 +107,27 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "bstr"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba3569f383e8f1598449f1a423e72e99569137b47740b1da11ef19af3d5c3223"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "bstr"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fca0852af221f458706eb0725c03e4ed6c46af9ac98e6a689d5e634215d594dd"
+dependencies = [
+ "memchr",
+ "once_cell",
+ "regex-automata",
+ "serde",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.11.1"
@@ -292,6 +341,12 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "difflib"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6184e33543162437515c2e2b48714794e37845ec9851711914eec9d308f6ebe8"
+
 [[package]]
 name = "digest"
 version = "0.10.5"
@@ -353,6 +408,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "doc-comment"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10"
+
 [[package]]
 name = "either"
 version = "1.8.0"
@@ -434,6 +495,8 @@ name = "espup"
 version = "0.2.2-dev"
 dependencies = [
  "anyhow",
+ "assert_cmd",
+ "assert_fs",
  "clap",
  "console",
  "directories-next",
@@ -590,6 +653,30 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "globset"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a1e17342619edbc21a964c2afbeb6c820c6a2560032872f397bb97ea127bd0a"
+dependencies = [
+ "aho-corasick",
+ "bstr 0.2.17",
+ "fnv",
+ "log",
+ "regex",
+]
+
+[[package]]
+name = "globwalk"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93e3af942408868f6934a7b85134a3230832b9977cf66125df2f9edcfce4ddcc"
+dependencies = [
+ "bitflags",
+ "ignore",
+ "walkdir",
+]
+
 [[package]]
 name = "guess_host_triple"
 version = "0.1.3"
@@ -738,6 +825,24 @@ dependencies = [
  "unicode-normalization",
 ]
 
+[[package]]
+name = "ignore"
+version = "0.4.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "713f1b139373f96a2e0ce3ac931cd01ee973c3c5dd7c40c0c2efe96ad2b6751d"
+dependencies = [
+ "crossbeam-utils",
+ "globset",
+ "lazy_static",
+ "log",
+ "memchr",
+ "regex",
+ "same-file",
+ "thread_local",
+ "walkdir",
+ "winapi-util",
+]
+
 [[package]]
 name = "indexmap"
 version = "1.9.1"
@@ -763,6 +868,15 @@ version = "2.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f88c5561171189e69df9d98bcf18fd5f9558300f7ea7b801eb8a0fd748bd8745"
 
+[[package]]
+name = "itertools"
+version = "0.10.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0fd2260e829bddf4cb6ea802289de2f86d6a7a690192fbe91b3f46e0f2c8473"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.4"
@@ -1032,6 +1146,33 @@ version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6ac9a59f73473f1b8d852421e59e64809f025994837ef743615c6d0c5b305160"
 
+[[package]]
+name = "predicates"
+version = "2.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed6bd09a7f7e68f3f0bf710fb7ab9c4615a488b58b5f653382a687701e458c92"
+dependencies = [
+ "difflib",
+ "itertools",
+ "predicates-core",
+]
+
+[[package]]
+name = "predicates-core"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72f883590242d3c6fc5bf50299011695fa6590c2c70eac95ee1bdb9a733ad1a2"
+
+[[package]]
+name = "predicates-tree"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "54ff541861505aabf6ea722d2131ee980b8276e10a1297b94e896dd8b621850d"
+dependencies = [
+ "predicates-core",
+ "termtree",
+]
+
 [[package]]
 name = "proc-macro-error"
 version = "1.0.4"
@@ -1135,6 +1276,12 @@ dependencies = [
  "regex-syntax",
 ]
 
+[[package]]
+name = "regex-automata"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
+
 [[package]]
 name = "regex-syntax"
 version = "0.6.28"
@@ -1239,6 +1386,15 @@ version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4501abdff3ae82a1c1b477a17252eb69cee9e66eb915c1abaa4f44d873df9f09"
 
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
 [[package]]
 name = "schannel"
 version = "0.1.20"
@@ -1479,6 +1635,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "termtree"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95059e91184749cb66be6dc994f67f182b6d897cb3df74a5bf66b5e709295fd8"
+
 [[package]]
 name = "thiserror"
 version = "1.0.37"
@@ -1499,6 +1661,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "thread_local"
+version = "1.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5516c27b78311c50bf42c071425c560ac799b11c30b31f87e3081965fe5e0180"
+dependencies = [
+ "once_cell",
+]
+
 [[package]]
 name = "time"
 version = "0.3.17"
@@ -1717,6 +1888,26 @@ version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
+[[package]]
+name = "wait-timeout"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f200f5b12eb75f8c1ed65abd4b2db8a6e1b138a20de009dacee265a2498f3f6"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "walkdir"
+version = "2.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "808cf2735cd4b6866113f648b791c6adc5714537bc222d9347bb203386ffda56"
+dependencies = [
+ "same-file",
+ "winapi",
+ "winapi-util",
+]
+
 [[package]]
 name = "want"
 version = "0.3.0"
diff --git a/Cargo.toml b/Cargo.toml
index 8b9384f..dbe3bd9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -39,6 +39,10 @@ serde_json = "1.0.87"
 thiserror = "1.0.37"
 update-informer = "0.5.0"
 
+[dev-dependencies]
+assert_fs = "1.0.9"
+assert_cmd = "2.0.6"
+
 [target.aarch64-unknown-linux-gnu.dependencies]
 openssl = { version = "0.10", features = ["vendored"] }
 
diff --git a/tests/integration.rs b/tests/integration.rs
new file mode 100644
index 0000000..38ac384
--- /dev/null
+++ b/tests/integration.rs
@@ -0,0 +1,43 @@
+#[test]
+fn fails_with_no_arguments() {
+    assert_cmd::Command::cargo_bin("espup")
+        .unwrap()
+        .assert()
+        .failure();
+}
+
+#[test]
+fn verify_help() {
+    assert_cmd::Command::cargo_bin("espup")
+        .unwrap()
+        .arg("--help")
+        .assert()
+        .success();
+}
+
+#[test]
+fn verify_install_help() {
+    assert_cmd::Command::cargo_bin("espup")
+        .unwrap()
+        .args(["install", "--help"])
+        .assert()
+        .success();
+}
+
+#[test]
+fn verify_update_help() {
+    assert_cmd::Command::cargo_bin("espup")
+        .unwrap()
+        .args(["update", "--help"])
+        .assert()
+        .success();
+}
+
+#[test]
+fn verify_uninstall_help() {
+    assert_cmd::Command::cargo_bin("espup")
+        .unwrap()
+        .args(["uninstall", "--help"])
+        .assert()
+        .success();
+}