Add simple integration tests

Cargo.lock

@@ -1,5 +1,16 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
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+ "memchr",
+]
+
 [[package]]
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@@ -24,6 +35,20 @@ version = "0.5.2"
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+ "bstr",
+ "doc-comment",
+ "predicates",
+ "predicates-core",
+ "predicates-tree",
+ "wait-timeout",
+]
+
 [[package]]
 name = "atty"
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@@ -148,12 +173,39 @@ dependencies = [
  "memchr",
 ]
 
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+ "num-traits",
+]
+
 [[package]]
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 version = "0.1.1"
@@ -185,6 +237,7 @@ name = "hyperfine"
 version = "1.11.0"
 dependencies = [
  "approx",
+ "assert_cmd",
  "atty",
  "cfg-if",
  "clap",
@@ -192,11 +245,13 @@ dependencies = [
  "csv",
  "indicatif",
  "libc",
+ "predicates",
  "rand 0.8.4",
  "rust_decimal",
  "serde",
  "serde_json",
  "statistical",
+ "tempfile",
  "version_check",
  "winapi",
 ]
@@ -213,6 +268,15 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
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+dependencies = [
+ "either",
+]
+
 [[package]]
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 version = "0.4.7"
@@ -237,6 +301,12 @@ version = "2.4.0"
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 checksum = "b16bd47d9e329435e309c58469fe0791c2d0d1ba96ec0954152a5ae2b04387dc"
 
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+
 [[package]]
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 version = "0.2.1"
@@ -326,6 +396,36 @@ version = "0.2.10"
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+dependencies = [
+ "difflib",
+ "float-cmp",
+ "itertools",
+ "normalize-line-endings",
+ "predicates-core",
+ "regex",
+]
+
+[[package]]
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+dependencies = [
+ "predicates-core",
+ "treeline",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.26"
@@ -499,12 +599,23 @@ dependencies = [
  "rand_core 0.3.1",
 ]
 
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+version = "0.2.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "bitflags",
+]
+
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 checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
 dependencies = [
+ "aho-corasick",
+ "memchr",
  "regex-syntax",
 ]
 
@@ -523,6 +634,15 @@ version = "0.6.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
 
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+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "rust_decimal"
 version = "1.15.0"
@@ -598,6 +718,20 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "tempfile"
+version = "3.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dac1c663cfc93810f88aed9b8941d48cabf856a1b111c29a40439018d870eb22"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "rand 0.8.4",
+ "redox_syscall",
+ "remove_dir_all",
+ "winapi",
+]
+
 [[package]]
 name = "term_size"
 version = "0.3.2"
@@ -628,6 +762,12 @@ dependencies = [
  "unicode-width",
 ]
 
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+
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+dependencies = [
+ "libc",
+]
+
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