Add regression tests.

1 files changed, 144 insertions, 0 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 0be294d..a1f009a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5,6 +5,7 @@ name = "advent_01"
 version = "0.1.0"
 dependencies = [
  "advent_lib",
+ "assert_cmd",
 ]
 
 [[package]]
@@ -12,6 +13,7 @@ name = "advent_02"
 version = "0.1.0"
 dependencies = [
  "advent_lib",
+ "assert_cmd",
  "regex",
 ]
 
@@ -20,6 +22,7 @@ name = "advent_03"
 version = "0.1.0"
 dependencies = [
  "advent_lib",
+ "assert_cmd",
 ]
 
 [[package]]
@@ -27,6 +30,7 @@ name = "advent_04"
 version = "0.1.0"
 dependencies = [
  "advent_lib",
+ "assert_cmd",
  "regex",
 ]
 
@@ -35,6 +39,7 @@ name = "advent_05"
 version = "0.1.0"
 dependencies = [
  "advent_lib",
+ "assert_cmd",
 ]
 
 [[package]]
@@ -42,6 +47,7 @@ name = "advent_06"
 version = "0.1.0"
 dependencies = [
  "advent_lib",
+ "assert_cmd",
 ]
 
 [[package]]
@@ -58,6 +64,40 @@ dependencies = [
 ]
 
 [[package]]
+name = "assert_cmd"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b7ac5c260f75e4e4ba87b7342be6edcecbcb3eb6741a0507fda7ad115845cc65"
+dependencies = [
+ "escargot",
+ "predicates",
+ "predicates-core",
+ "predicates-tree",
+]
+
+[[package]]
+name = "difference"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "524cbf6897b527295dff137cec09ecf3a05f4fddffd7dfcd1585403449e74198"
+
+[[package]]
+name = "escargot"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19db1f7e74438642a5018cdf263bb1325b2e792f02dd0a3ca6d6c0f0d7b1d5a5"
+dependencies = [
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "itoa"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc6f3ad7b9d11a0c00842ff8de1b60ee58661048eb8049ed33c73594f359d7e6"
+
+[[package]]
 name = "lazy_static"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -70,6 +110,50 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
 [[package]]
+name = "predicates"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96bfead12e90dccead362d62bb2c90a5f6fc4584963645bc7f71a735e0b0735a"
+dependencies = [
+ "difference",
+ "predicates-core",
+]
+
+[[package]]
+name = "predicates-core"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06075c3a3e92559ff8929e7a280684489ea27fe44805174c3ebd9328dcb37178"
+
+[[package]]
+name = "predicates-tree"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e63c4859013b38a76eca2414c64911fba30def9e3202ac461a2d22831220124"
+dependencies = [
+ "predicates-core",
+ "treeline",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
 name = "regex"
 version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -88,6 +172,54 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3b181ba2dcf07aaccad5448e8ead58db5b742cf85dfe035e2227f137a539a189"
 
 [[package]]
+name = "ryu"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
+
+[[package]]
+name = "serde"
+version = "1.0.118"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06c64263859d87aa2eb554587e2d23183398d617427327cf2b3d0ed8c69e4800"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.118"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c84d3526699cd55261af4b941e4e725444df67aa4f9e6a3564f18030d12672df"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.60"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1500e84d27fe482ed1dc791a56eddc2f230046a040fa908c08bda1d9fb615779"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8833e20724c24de12bbaba5ad230ea61c3eafb05b881c7c9d3cfe8638b187e68"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
 name = "thread_local"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -95,3 +227,15 @@ checksum = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
 dependencies = [
  "lazy_static",
 ]
+
+[[package]]
+name = "treeline"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7f741b240f1a48843f9b8e0444fb55fb2a4ff67293b50a9179dfd5ea67f8d41"
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"