Adding tests and fixing stuff

.gitignore

@@ -1,2 +1,2 @@
 node_modules/
-testrepo/
+testrepo_*

package.json

@@ -4,14 +4,19 @@
    "description": "",
    "main": "index.js",
    "scripts": {
-      "dev": "nodemon -e ts --exec ts-node src/test.ts",
+      "dev": "nodemon -e ts --exec npm run test",
+      "test": "mocha --require ts-node/register src/test.ts",
       "build": "tsc"
    },
    "keywords": [],
    "author": "",
    "license": "ISC",
    "devDependencies": {
+      "@types/chai": "^4.2.21",
+      "@types/mocha": "^9.0.0",
       "@types/node": "^16.4.13",
+      "chai": "^4.3.4",
+      "mocha": "^9.0.3",
       "nodemon": "^2.0.12",
       "ts-node": "^10.2.0",
       "typescript": "^4.3.5"

pnpm-lock.yaml

@@ -1,8 +1,12 @@
 lockfileVersion: 5.3
 
 specifiers:
+  '@types/chai': ^4.2.21
+  '@types/mocha': ^9.0.0
   '@types/node': ^16.4.13
+  chai: ^4.3.4
   jssha: ^3.2.0
+  mocha: ^9.0.3
   nodemon: ^2.0.12
   ts-node: ^10.2.0
   typescript: ^4.3.5
@@ -11,7 +15,11 @@ dependencies:
   jssha: 3.2.0
 
 devDependencies:
+  '@types/chai': 4.2.21
+  '@types/mocha': 9.0.0
   '@types/node': 16.4.13
+  chai: 4.3.4
+  mocha: 9.0.3
   nodemon: 2.0.12
   ts-node: 10.2.0_dea0625f6d31b223e93dc3dc354b8b43
   typescript: 4.3.5
@@ -58,10 +66,22 @@ packages:
     resolution: {integrity: sha512-eZxlbI8GZscaGS7kkc/trHTT5xgrjH3/1n2JDwusC9iahPKWMRvRjJSAN5mCXviuTGQ/lHnhvv8Q1YTpnfz9gA==}
     dev: true
 
+  /@types/chai/4.2.21:
+    resolution: {integrity: sha512-yd+9qKmJxm496BOV9CMNaey8TWsikaZOwMRwPHQIjcOJM9oV+fi9ZMNw3JsVnbEEbo2gRTDnGEBv8pjyn67hNg==}
+    dev: true
+
+  /@types/mocha/9.0.0:
+    resolution: {integrity: sha512-scN0hAWyLVAvLR9AyW7HoFF5sJZglyBsbPuHO4fv7JRvfmPBMfp1ozWqOf/e4wwPNxezBZXRfWzMb6iFLgEVRA==}
+    dev: true
+
   /@types/node/16.4.13:
     resolution: {integrity: sha512-bLL69sKtd25w7p1nvg9pigE4gtKVpGTPojBFLMkGHXuUgap2sLqQt2qUnqmVCDfzGUL0DRNZP+1prIZJbMeAXg==}
     dev: true
 
+  /@ungap/promise-all-settled/1.1.2:
+    resolution: {integrity: sha512-sL/cEvJWAnClXw0wHk85/2L0G6Sj8UB0Ctc1TEMbKSsmpRosqhwj9gWgFRZSrBr2f9tiXISwNhCPmlfqUqyb9Q==}
+    dev: true
+
   /abbrev/1.1.1:
     resolution: {integrity: sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==}
     dev: true
@@ -83,6 +103,16 @@ packages:
       string-width: 3.1.0
     dev: true
 
+  /ansi-colors/4.1.1:
+    resolution: {integrity: sha512-JoX0apGbHaUJBNl6yF+p6JAFYZ666/hhCGKN5t9QFjbJQKUU/g8MNbFDbvfrgKXvI1QpZplPOnwIo99lX/AAmA==}
+    engines: {node: '>=6'}
+    dev: true
+
+  /ansi-regex/3.0.0:
+    resolution: {integrity: sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=}
+    engines: {node: '>=4'}
+    dev: true
+
   /ansi-regex/4.1.0:
     resolution: {integrity: sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==}
     engines: {node: '>=6'}
@@ -112,6 +142,14 @@ packages:
     resolution: {integrity: sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==}
     dev: true
 
+  /argparse/2.0.1:
+    resolution: {integrity: sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==}
+    dev: true
+
+  /assertion-error/1.1.0:
+    resolution: {integrity: sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==}
+    dev: true
+
   /balanced-match/1.0.2:
     resolution: {integrity: sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==}
     dev: true
@@ -149,6 +187,10 @@ packages:
       fill-range: 7.0.1
     dev: true
 
+  /browser-stdout/1.3.1:
+    resolution: {integrity: sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==}
+    dev: true
+
   /cacheable-request/6.1.0:
     resolution: {integrity: sha512-Oj3cAGPCqOZX7Rz64Uny2GYAZNliQSqfbePrgAQ1wKAihYmCUnraBtJtKcGR4xz7wF+LoJC+ssFZvv5BgF9Igg==}
     engines: {node: '>=8'}
@@ -167,6 +209,23 @@ packages:
     engines: {node: '>=6'}
     dev: true
 
+  /camelcase/6.2.0:
+    resolution: {integrity: sha512-c7wVvbw3f37nuobQNtgsgG9POC9qMbNuMQmTCqZv23b6MIz0fcYpBiOlv9gEN/hdLdnZTDQhg6e9Dq5M1vKvfg==}
+    engines: {node: '>=10'}
+    dev: true
+
+  /chai/4.3.4:
+    resolution: {integrity: sha512-yS5H68VYOCtN1cjfwumDSuzn/9c+yza4f3reKXlE5rUg7SFcCEy90gJvydNgOYtblyf4Zi6jIWRnXOgErta0KA==}
+    engines: {node: '>=4'}
+    dependencies:
+      assertion-error: 1.1.0
+      check-error: 1.0.2
+      deep-eql: 3.0.1
+      get-func-name: 2.0.0
+      pathval: 1.1.1
+      type-detect: 4.0.8
+    dev: true
+
   /chalk/3.0.0:
     resolution: {integrity: sha512-4D3B6Wf41KOYRFdszmDqMCGq5VV/uMAB273JILmO+3jAlh8X4qDtdtgCR3fxtbLEMzSx22QdhnDcJvu2u1fVwg==}
     engines: {node: '>=8'}
@@ -175,6 +234,18 @@ packages:
       supports-color: 7.2.0
     dev: true
 
+  /chalk/4.1.2:
+    resolution: {integrity: sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==}
+    engines: {node: '>=10'}
+    dependencies:
+      ansi-styles: 4.3.0
+      supports-color: 7.2.0
+    dev: true
+
+  /check-error/1.0.2:
+    resolution: {integrity: sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=}
+    dev: true
+
   /chokidar/3.5.2:
     resolution: {integrity: sha512-ekGhOnNVPgT77r4K/U3GDhu+FQ2S8TnK/s2KbIGXi0SZWuwkZ2QNyfWdZW+TVfn84DpEP7rLeCt2UI6bJ8GwbQ==}
     engines: {node: '>= 8.10.0'}
@@ -199,6 +270,14 @@ packages:
     engines: {node: '>=6'}
     dev: true
 
+  /cliui/7.0.4:
+    resolution: {integrity: sha512-OcRE68cOsVMXp1Yvonl/fzkQOyjLSu/8bhPDfQt0e0/Eb283TKP20Fs2MqoPsr9SwA595rRCA+QMzYc9nBP+JQ==}
+    dependencies:
+      string-width: 4.2.2
+      strip-ansi: 6.0.0
+      wrap-ansi: 7.0.0
+    dev: true
+
   /clone-response/1.0.2:
     resolution: {integrity: sha1-0dyXOSAxTfZ/vrlCI7TuNQI56Ws=}
     dependencies:
@@ -253,6 +332,24 @@ packages:
       ms: 2.1.3
     dev: true
 
+  /debug/4.3.1_supports-color@8.1.1:
+    resolution: {integrity: sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==}
+    engines: {node: '>=6.0'}
+    peerDependencies:
+      supports-color: '*'
+    peerDependenciesMeta:
+      supports-color:
+        optional: true
+    dependencies:
+      ms: 2.1.2
+      supports-color: 8.1.1
+    dev: true
+
+  /decamelize/4.0.0:
+    resolution: {integrity: sha512-9iE1PgSik9HeIIw2JO94IidnE3eBoQrFJ3w7sFuzSX4DpmZ3v5sZpUiV5Swcf6mQEF+Y0ru8Neo+p+nyh2J+hQ==}
+    engines: {node: '>=10'}
+    dev: true
+
   /decompress-response/3.3.0:
     resolution: {integrity: sha1-gKTdMjdIOEv6JICDYirt7Jgq3/M=}
     engines: {node: '>=4'}
@@ -260,6 +357,13 @@ packages:
       mimic-response: 1.0.1
     dev: true
 
+  /deep-eql/3.0.1:
+    resolution: {integrity: sha512-+QeIQyN5ZuO+3Uk5DYh6/1eKO0m0YmJFGNmFHGACpf1ClL1nmlV/p4gNgbl2pJGxgXb4faqo6UE+M5ACEMyVcw==}
+    engines: {node: '>=0.12'}
+    dependencies:
+      type-detect: 4.0.8
+    dev: true
+
   /deep-extend/0.6.0:
     resolution: {integrity: sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==}
     engines: {node: '>=4.0.0'}
@@ -274,6 +378,11 @@ packages:
     engines: {node: '>=0.3.1'}
     dev: true
 
+  /diff/5.0.0:
+    resolution: {integrity: sha512-/VTCrvm5Z0JGty/BWHljh+BAiw3IK+2j87NGMu8Nwc/f48WoDAC395uomO9ZD117ZOBaHmkX1oyLvkVM/aIT3w==}
+    engines: {node: '>=0.3.1'}
+    dev: true
+
   /dot-prop/5.3.0:
     resolution: {integrity: sha512-QM8q3zDe58hqUqjraQOmzZ1LIH9SWQJTlEKCH4kJ2oQvLZk7RbQXvtDM2XEq3fwkV9CCvvH4LA0AV+ogFsBM2Q==}
     engines: {node: '>=8'}
@@ -299,11 +408,21 @@ packages:
       once: 1.4.0
     dev: true
 
+  /escalade/3.1.1:
+    resolution: {integrity: sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==}
+    engines: {node: '>=6'}
+    dev: true
+
   /escape-goat/2.1.1:
     resolution: {integrity: sha512-8/uIhbG12Csjy2JEW7D9pHbreaVaS/OpN3ycnyvElTdwM5n6GY6W6e2IPemfvGZeUMqZ9A/3GqIZMgKnBhAw/Q==}
     engines: {node: '>=8'}
     dev: true
 
+  /escape-string-regexp/4.0.0:
+    resolution: {integrity: sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==}
+    engines: {node: '>=10'}
+    dev: true
+
   /fill-range/7.0.1:
     resolution: {integrity: sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==}
     engines: {node: '>=8'}
@@ -311,6 +430,23 @@ packages:
       to-regex-range: 5.0.1
     dev: true
 
+  /find-up/5.0.0:
+    resolution: {integrity: sha512-78/PXT1wlLLDgTzDs7sjq9hzz0vXD+zn+7wypEe4fXQxCmdmqfGsEPQxmiCSQI3ajFV91bVSsvNtrJRiW6nGng==}
+    engines: {node: '>=10'}
+    dependencies:
+      locate-path: 6.0.0
+      path-exists: 4.0.0
+    dev: true
+
+  /flat/5.0.2:
+    resolution: {integrity: sha512-b6suED+5/3rTpUBdG1gupIl8MPFCAMA0QXwmljLhvCUKcUvdE4gWky9zpuGCcXHOsz4J9wPGNWq6OKpmIzz3hQ==}
+    hasBin: true
+    dev: true
+
+  /fs.realpath/1.0.0:
+    resolution: {integrity: sha1-FQStJSMVjKpA20onh8sBQRmU6k8=}
+    dev: true
+
   /fsevents/2.3.2:
     resolution: {integrity: sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==}
     engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
@@ -318,6 +454,15 @@ packages:
     dev: true
     optional: true
 
+  /get-caller-file/2.0.5:
+    resolution: {integrity: sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==}
+    engines: {node: 6.* || 8.* || >= 10.*}
+    dev: true
+
+  /get-func-name/2.0.0:
+    resolution: {integrity: sha1-6td0q+5y4gQJQzoGY2YCPdaIekE=}
+    dev: true
+
   /get-stream/4.1.0:
     resolution: {integrity: sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==}
     engines: {node: '>=6'}
@@ -339,6 +484,17 @@ packages:
       is-glob: 4.0.1
     dev: true
 
+  /glob/7.1.7:
+    resolution: {integrity: sha512-OvD9ENzPLbegENnYP5UUfJIirTg4+XwMWGaQfQTY0JenxNvvIKP3U3/tAQSPIu/lHxXYSZmpXlUHeqAIdKzBLQ==}
+    dependencies:
+      fs.realpath: 1.0.0
+      inflight: 1.0.6
+      inherits: 2.0.4
+      minimatch: 3.0.4
+      once: 1.4.0
+      path-is-absolute: 1.0.1
+    dev: true
+
   /global-dirs/2.1.0:
     resolution: {integrity: sha512-MG6kdOUh/xBnyo9cJFeIKkLEc1AyFq42QTU4XiX51i2NEdxLxLWXIjEjmqKeSuKR7pAZjTqUVoT2b2huxVLgYQ==}
     engines: {node: '>=8'}
@@ -367,6 +523,11 @@ packages:
     resolution: {integrity: sha512-qkIilPUYcNhJpd33n0GBXTB1MMPp14TxEsEs0pTrsSVucApsYzW5V+Q8Qxhik6KU3evy+qkAAowTByymK0avdg==}
     dev: true
 
+  /growl/1.10.5:
+    resolution: {integrity: sha512-qBr4OuELkhPenW6goKVXiv47US3clb3/IbuWF9KNKEijAy9oeHxU9IgzjvJhHkUzhaj7rOUD7+YGWqUjLp5oSA==}
+    engines: {node: '>=4.x'}
+    dev: true
+
   /has-flag/3.0.0:
     resolution: {integrity: sha1-tdRU3CGZriJWmfNGfloH87lVuv0=}
     engines: {node: '>=4'}
@@ -382,6 +543,11 @@ packages:
     engines: {node: '>=8'}
     dev: true
 
+  /he/1.2.0:
+    resolution: {integrity: sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==}
+    hasBin: true
+    dev: true
+
   /http-cache-semantics/4.1.0:
     resolution: {integrity: sha512-carPklcUh7ROWRK7Cv27RPtdhYhUsela/ue5/jKzjegVvXDqM2ILE9Q2BGn9JZJh1g87cp56su/FgQSzcWS8cQ==}
     dev: true
@@ -400,6 +566,17 @@ packages:
     engines: {node: '>=0.8.19'}
     dev: true
 
+  /inflight/1.0.6:
+    resolution: {integrity: sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=}
+    dependencies:
+      once: 1.4.0
+      wrappy: 1.0.2
+    dev: true
+
+  /inherits/2.0.4:
+    resolution: {integrity: sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==}
+    dev: true
+
   /ini/1.3.7:
     resolution: {integrity: sha512-iKpRpXP+CrP2jyrxvg1kMUpXDyRUFDWurxbnVT1vQPx+Wz9uCYsMIqYuSBLV+PAaZG/d7kRLKRFc9oDMsH+mFQ==}
     dev: true
@@ -472,14 +649,35 @@ packages:
     engines: {node: '>=8'}
     dev: true
 
+  /is-plain-obj/2.1.0:
+    resolution: {integrity: sha512-YWnfyRwxL/+SsrWYfOpUtz5b3YD+nyfkHvjbcanzk8zgyO4ASD67uVMRt8k5bM4lLMDnXfriRhOpemw+NfT1eA==}
+    engines: {node: '>=8'}
+    dev: true
+
   /is-typedarray/1.0.0:
     resolution: {integrity: sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=}
     dev: true
 
+  /is-unicode-supported/0.1.0:
+    resolution: {integrity: sha512-knxG2q4UC3u8stRGyAVJCOdxFmv5DZiRcdlIaAQXAbSfJya+OhopNotLQrstBhququ4ZpuKbDc/8S6mgXgPFPw==}
+    engines: {node: '>=10'}
+    dev: true
+
   /is-yarn-global/0.3.0:
     resolution: {integrity: sha512-VjSeb/lHmkoyd8ryPVIKvOCn4D1koMqY+vqyjjUfc3xyKtP4dYOxM44sZrnqQSzSds3xyOrUTLTC9LVCVgLngw==}
     dev: true
 
+  /isexe/2.0.0:
+    resolution: {integrity: sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=}
+    dev: true
+
+  /js-yaml/4.1.0:
+    resolution: {integrity: sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==}
+    hasBin: true
+    dependencies:
+      argparse: 2.0.1
+    dev: true
+
   /json-buffer/3.0.0:
     resolution: {integrity: sha1-Wx85evx11ne96Lz8Dkfh+aPZqJg=}
     dev: true
@@ -501,6 +699,21 @@ packages:
       package-json: 6.5.0
     dev: true
 
+  /locate-path/6.0.0:
+    resolution: {integrity: sha512-iPZK6eYjbxRu3uB4/WZ3EsEIMJFMqAoopl3R+zuq0UjcAm/MO6KCweDgPfP3elTztoKP3KtnVHxTn2NHBSDVUw==}
+    engines: {node: '>=10'}
+    dependencies:
+      p-locate: 5.0.0
+    dev: true
+
+  /log-symbols/4.1.0:
+    resolution: {integrity: sha512-8XPvpAA8uyhfteu8pIvQxpJZ7SYYdpUivZpGy6sFsBuKRY/7rQGavedeB8aK+Zkyq6upMFVL/9AW6vOYzfRyLg==}
+    engines: {node: '>=10'}
+    dependencies:
+      chalk: 4.1.2
+      is-unicode-supported: 0.1.0
+    dev: true
+
   /lowercase-keys/1.0.1:
     resolution: {integrity: sha512-G2Lj61tXDnVFFOi8VZds+SoQjtQC3dgokKdDG2mTm1tx4m50NUHBOZSBwQQHyy0V12A0JTG4icfZQH+xPyh8VA==}
     engines: {node: '>=0.10.0'}
@@ -537,14 +750,56 @@ packages:
     resolution: {integrity: sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==}
     dev: true
 
+  /mocha/9.0.3:
+    resolution: {integrity: sha512-hnYFrSefHxYS2XFGtN01x8un0EwNu2bzKvhpRFhgoybIvMaOkkL60IVPmkb5h6XDmUl4IMSB+rT5cIO4/4bJgg==}
+    engines: {node: '>= 12.0.0'}
+    hasBin: true
+    dependencies:
+      '@ungap/promise-all-settled': 1.1.2
+      ansi-colors: 4.1.1
+      browser-stdout: 1.3.1
+      chokidar: 3.5.2
+      debug: 4.3.1_supports-color@8.1.1
+      diff: 5.0.0
+      escape-string-regexp: 4.0.0
+      find-up: 5.0.0
+      glob: 7.1.7
+      growl: 1.10.5
+      he: 1.2.0
+      js-yaml: 4.1.0
+      log-symbols: 4.1.0
+      minimatch: 3.0.4
+      ms: 2.1.3
+      nanoid: 3.1.23
+      serialize-javascript: 6.0.0
+      strip-json-comments: 3.1.1
+      supports-color: 8.1.1
+      which: 2.0.2
+      wide-align: 1.1.3
+      workerpool: 6.1.5
+      yargs: 16.2.0
+      yargs-parser: 20.2.4
+      yargs-unparser: 2.0.0
+    dev: true
+
   /ms/2.0.0:
     resolution: {integrity: sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=}
     dev: true
 
+  /ms/2.1.2:
+    resolution: {integrity: sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==}
+    dev: true
+
   /ms/2.1.3:
     resolution: {integrity: sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==}
     dev: true
 
+  /nanoid/3.1.23:
+    resolution: {integrity: sha512-FiB0kzdP0FFVGDKlRLEQ1BgDzU87dy5NnzjeW9YZNt+/c3+q82EQDUwniSAUxp/F0gFNI1ZhKU1FqYsMuqZVnw==}
+    engines: {node: ^10 || ^12 || ^13.7 || ^14 || >=15.0.1}
+    hasBin: true
+    dev: true
+
   /nodemon/2.0.12:
     resolution: {integrity: sha512-egCTmNZdObdBxUBw6ZNwvZ/xzk24CKRs5K6d+5zbmrMr7rOpPmfPeF6OxM3DDpaRx331CQRFEktn+wrFFfBSOA==}
     engines: {node: '>=8.10.0'}
@@ -591,6 +846,20 @@ packages:
     engines: {node: '>=6'}
     dev: true
 
+  /p-limit/3.1.0:
+    resolution: {integrity: sha512-TYOanM3wGwNGsZN2cVTYPArw454xnXj5qmWF1bEoAc4+cU/ol7GVh7odevjp1FNHduHc3KZMcFduxU5Xc6uJRQ==}
+    engines: {node: '>=10'}
+    dependencies:
+      yocto-queue: 0.1.0
+    dev: true
+
+  /p-locate/5.0.0:
+    resolution: {integrity: sha512-LaNjtRWUBY++zB5nE/NwcaoMylSPk+S+ZHNB1TzdbMJMny6dynpAGt7X/tl/QYq3TIeE6nxHppbo2LGymrG5Pw==}
+    engines: {node: '>=10'}
+    dependencies:
+      p-limit: 3.1.0
+    dev: true
+
   /package-json/6.5.0:
     resolution: {integrity: sha512-k3bdm2n25tkyxcjSKzB5x8kfVxlMdgsbPr0GkZcwHsLpba6cBjqCt1KlcChKEvxHIcTB1FVMuwoijZ26xex5MQ==}
     engines: {node: '>=8'}
@@ -601,6 +870,20 @@ packages:
       semver: 6.3.0
     dev: true
 
+  /path-exists/4.0.0:
+    resolution: {integrity: sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==}
+    engines: {node: '>=8'}
+    dev: true
+
+  /path-is-absolute/1.0.1:
+    resolution: {integrity: sha1-F0uSaHNVNP+8es5r9TpanhtcX18=}
+    engines: {node: '>=0.10.0'}
+    dev: true
+
+  /pathval/1.1.1:
+    resolution: {integrity: sha512-Dp6zGqpTdETdR63lehJYPeIOqpiNBNtc7BpWSLrOje7UaIsE5aY92r/AunQA7rsXvet3lrJ3JnZX29UPTKXyKQ==}
+    dev: true
+
   /picomatch/2.3.0:
     resolution: {integrity: sha512-lY1Q/PiJGC2zOv/z391WOTD+Z02bCgsFfvxoXXf6h7kv9o+WmsmzYqrAwY63sNgOxE4xEdq0WyUnXfKeBrSvYw==}
     engines: {node: '>=8.6'}
@@ -629,6 +912,12 @@ packages:
       escape-goat: 2.1.1
     dev: true
 
+  /randombytes/2.1.0:
+    resolution: {integrity: sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==}
+    dependencies:
+      safe-buffer: 5.2.1
+    dev: true
+
   /rc/1.2.8:
     resolution: {integrity: sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==}
     hasBin: true
@@ -660,12 +949,21 @@ packages:
       rc: 1.2.8
     dev: true
 
+  /require-directory/2.1.1:
+    resolution: {integrity: sha1-jGStX9MNqxyXbiNE/+f3kqam30I=}
+    engines: {node: '>=0.10.0'}
+    dev: true
+
   /responselike/1.0.2:
     resolution: {integrity: sha1-kYcg7ztjHFZCvgaPFa3lpG9Loec=}
     dependencies:
       lowercase-keys: 1.0.1
     dev: true
 
+  /safe-buffer/5.2.1:
+    resolution: {integrity: sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==}
+    dev: true
+
   /semver-diff/3.1.1:
     resolution: {integrity: sha512-GX0Ix/CJcHyB8c4ykpHGIAvLyOwOobtM/8d+TQkAd81/bEjgPHrfba41Vpesr7jX/t8Uh+R3EX9eAS5be+jQYg==}
     engines: {node: '>=8'}
@@ -683,10 +981,24 @@ packages:
     hasBin: true
     dev: true
 
+  /serialize-javascript/6.0.0:
+    resolution: {integrity: sha512-Qr3TosvguFt8ePWqsvRfrKyQXIiW+nGbYpy8XK24NQHE83caxWt+mIymTT19DGFbNWNLfEwsrkSmN64lVWB9ag==}
+    dependencies:
+      randombytes: 2.1.0
+    dev: true
+
   /signal-exit/3.0.3:
     resolution: {integrity: sha512-VUJ49FC8U1OxwZLxIbTTrDvLnf/6TDgxZcK8wxR8zs13xpx7xbG60ndBlhNrFi2EMuFRoeDoJO7wthSLq42EjA==}
     dev: true
 
+  /string-width/2.1.1:
+    resolution: {integrity: sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==}
+    engines: {node: '>=4'}
+    dependencies:
+      is-fullwidth-code-point: 2.0.0
+      strip-ansi: 4.0.0
+    dev: true
+
   /string-width/3.1.0:
     resolution: {integrity: sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==}
     engines: {node: '>=6'}
@@ -705,6 +1017,13 @@ packages:
       strip-ansi: 6.0.0
     dev: true
 
+  /strip-ansi/4.0.0:
+    resolution: {integrity: sha1-qEeQIusaw2iocTibY1JixQXuNo8=}
+    engines: {node: '>=4'}
+    dependencies:
+      ansi-regex: 3.0.0
+    dev: true
+
   /strip-ansi/5.2.0:
     resolution: {integrity: sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==}
     engines: {node: '>=6'}
@@ -724,6 +1043,11 @@ packages:
     engines: {node: '>=0.10.0'}
     dev: true
 
+  /strip-json-comments/3.1.1:
+    resolution: {integrity: sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==}
+    engines: {node: '>=8'}
+    dev: true
+
   /supports-color/5.5.0:
     resolution: {integrity: sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==}
     engines: {node: '>=4'}
@@ -738,6 +1062,13 @@ packages:
       has-flag: 4.0.0
     dev: true
 
+  /supports-color/8.1.1:
+    resolution: {integrity: sha512-MpUEN2OodtUzxvKQl72cUF7RQ5EiHsGvSsVG0ia9c5RbWGL2CI4C7EpPS8UTBIplnlzZiNuV56w+FuNxy3ty2Q==}
+    engines: {node: '>=10'}
+    dependencies:
+      has-flag: 4.0.0
+    dev: true
+
   /term-size/2.2.1:
     resolution: {integrity: sha512-wK0Ri4fOGjv/XPy8SBHZChl8CM7uMc5VML7SqiQ0zG7+J5Vr+RMQDoHa2CNT6KHUnTGIXH34UDMkPzAUyapBZg==}
     engines: {node: '>=8'}
@@ -793,6 +1124,11 @@ packages:
       yn: 3.1.1
     dev: true
 
+  /type-detect/4.0.8:
+    resolution: {integrity: sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==}
+    engines: {node: '>=4'}
+    dev: true
+
   /type-fest/0.8.1:
     resolution: {integrity: sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==}
     engines: {node: '>=8'}
@@ -849,6 +1185,20 @@ packages:
       prepend-http: 2.0.0
     dev: true
 
+  /which/2.0.2:
+    resolution: {integrity: sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==}
+    engines: {node: '>= 8'}
+    hasBin: true
+    dependencies:
+      isexe: 2.0.0
+    dev: true
+
+  /wide-align/1.1.3:
+    resolution: {integrity: sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==}
+    dependencies:
+      string-width: 2.1.1
+    dev: true
+
   /widest-line/3.1.0:
     resolution: {integrity: sha512-NsmoXalsWVDMGupxZ5R08ka9flZjjiLvHVAWYOKtiKM8ujtZWr9cRffak+uSE48+Ob8ObalXpwyeUiyDD6QFgg==}
     engines: {node: '>=8'}
@@ -856,6 +1206,19 @@ packages:
       string-width: 4.2.2
     dev: true
 
+  /workerpool/6.1.5:
+    resolution: {integrity: sha512-XdKkCK0Zqc6w3iTxLckiuJ81tiD/o5rBE/m+nXpRCB+/Sq4DqkfXZ/x0jW02DG1tGsfUGXbTJyZDP+eu67haSw==}
+    dev: true
+
+  /wrap-ansi/7.0.0:
+    resolution: {integrity: sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==}
+    engines: {node: '>=10'}
+    dependencies:
+      ansi-styles: 4.3.0
+      string-width: 4.2.2
+      strip-ansi: 6.0.0
+    dev: true
+
   /wrappy/1.0.2:
     resolution: {integrity: sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=}
     dev: true
@@ -874,7 +1237,45 @@ packages:
     engines: {node: '>=8'}
     dev: true
 
+  /y18n/5.0.8:
+    resolution: {integrity: sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==}
+    engines: {node: '>=10'}
+    dev: true
+
+  /yargs-parser/20.2.4:
+    resolution: {integrity: sha512-WOkpgNhPTlE73h4VFAFsOnomJVaovO8VqLDzy5saChRBFQFBoMYirowyW+Q9HB4HFF4Z7VZTiG3iSzJJA29yRA==}
+    engines: {node: '>=10'}
+    dev: true
+
+  /yargs-unparser/2.0.0:
+    resolution: {integrity: sha512-7pRTIA9Qc1caZ0bZ6RYRGbHJthJWuakf+WmHK0rVeLkNrrGhfoabBNdue6kdINI6r4if7ocq9aD/n7xwKOdzOA==}
+    engines: {node: '>=10'}
+    dependencies:
+      camelcase: 6.2.0
+      decamelize: 4.0.0
+      flat: 5.0.2
+      is-plain-obj: 2.1.0
+    dev: true
+
+  /yargs/16.2.0:
+    resolution: {integrity: sha512-D1mvvtDG0L5ft/jGWkLpG1+m0eQxOfaBvTNELraWj22wSVUMWxZUvYgJYcKh6jGGIkJFhH4IZPQhR4TKpc8mBw==}
+    engines: {node: '>=10'}
+    dependencies:
+      cliui: 7.0.4
+      escalade: 3.1.1
+      get-caller-file: 2.0.5
+      require-directory: 2.1.1
+      string-width: 4.2.2
+      y18n: 5.0.8
+      yargs-parser: 20.2.4
+    dev: true
+
   /yn/3.1.1:
     resolution: {integrity: sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==}
     engines: {node: '>=6'}
     dev: true
+
+  /yocto-queue/0.1.0:
+    resolution: {integrity: sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==}
+    engines: {node: '>=10'}
+    dev: true

src/datasources/fs.ts

@@ -10,6 +10,8 @@ export default class FSDataStore implements IDataStore {
    }
 
    async get(name: string) {
+      if (!await this.has(name))
+         return undefined;
       return Fs.promises.readFile(Path.join(this.#path, name));
    }
 
@@ -34,11 +36,11 @@ export default class FSDataStore implements IDataStore {
       //TODO: This is not atomic yet! FIX
       while ((await this.has("lock")) || this.#l) {
          try {
-            let con = (await this.get("lock")).toString("utf-8");
+            let con = (await this.get("lock") as Buffer).toString("utf-8");
 
             if (Number(con) < Date.now() - 10000) break;
             await new Promise((y) => setTimeout(y, 10));
-         } catch (err) {}
+         } catch (err) { }
       }
       this.#l = true;
 

src/repo.ts

@@ -2,7 +2,7 @@ import SHA from "jssha";
 import Path from "./helper/path";
 
 export interface IDataStore {
-   get(key: string): Promise<Uint8Array>;
+   get(key: string): Promise<Uint8Array | undefined>;
    set(key: string, data: Uint8Array): Promise<void>;
    has(key: string): Promise<boolean>;
    close?: () => Promise<void>;
@@ -22,6 +22,14 @@ export type Commit = {
    date: Date;
 };
 
+export type NodeLog = {
+   /**
+    * ObjectID of the data. Can be undefined if element was deleted!
+    */
+   id: string | undefined;
+   commit: Commit
+}
+
 // TODOs:
 //  - HEAD locks
 //  - HEAD/Tree Cache
@@ -29,12 +37,16 @@ export type Commit = {
 //  - Add DataStore Locking for access from multiple sources
 
 export default class Repository {
+   //#region local variables
    #store: IDataStore;
+   //#endregion
 
    constructor(store: IDataStore) {
       this.#store = store;
    }
 
+   //#region private
+
    private sha1(data: Uint8Array) {
       const s = new SHA("SHA-1", "UINT8ARRAY");
       s.update(data);
@@ -50,11 +62,9 @@ export default class Repository {
    private splitPath(path: string) {
       const resolved = Path.resolve(path).slice(1);
       if (resolved == "") return [];
-      return resolved.split(Path.delimiter);
+      return resolved.split(Path.sep);
    }
 
-   private getHeadLock() {}
-
    private async writeObject(data: Uint8Array | string): Promise<string> {
       if (typeof data == "string") {
          data = new TextEncoder().encode(data);
@@ -68,9 +78,9 @@ export default class Repository {
       return this.#store.has("objects/" + id);
    }
 
-   private async readObject(id: string, string: true): Promise<string>;
+   private async readObject(id: string, string: true): Promise<string | undefined>;
-   private async readObject(id: string, string?: false): Promise<Uint8Array>;
+   private async readObject(id: string, string?: false): Promise<Uint8Array | undefined>;
-   private async readObject(id: string, string = false): Promise<Uint8Array | string> {
+   private async readObject(id: string, string = false): Promise<Uint8Array | string | undefined> {
       let data = await this.#store.get("objects/" + id);
       if (string) {
          return new TextDecoder().decode(data);
@@ -79,94 +89,7 @@ export default class Repository {
       }
    }
 
-   async clean() {
+   private async treeFindObjectID(
-      // TODO: Cleanup broken things
-   }
-
-   async readdir(path: string): Promise<TreeEntry[] | undefined> {
-      const parts = this.splitPath(path);
-      console.log({ parts });
-      const head = await this.readHead();
-      if (!head) return undefined;
-
-      const treeID = await this.treeFindObjectID(head.root, parts, "tree");
-
-      if (!treeID) return undefined;
-
-      return this.readTree(treeID);
-   }
-
-   async read(path: string): Promise<Uint8Array | undefined> {
-      const parts = this.splitPath(path);
-      const head = await this.readHead();
-      if (!head) return undefined;
-
-      const objectID = await this.treeFindObjectID(head.root, parts, "blob");
-
-      if (!objectID) return undefined;
-
-      return this.readObject(objectID);
-   }
-
-   async write(path: string, data: Uint8Array) {
-      const parts = this.splitPath(path);
-
-      const objectID = await this.writeObject(data);
-
-      const lock = await this.#store.getLock();
-      try {
-         //TODO: Improve need of locking.
-         const head = await this.readHead();
-
-         const makeTree = async (treeID: string | undefined, parts: string[]) => {
-            let tree: TreeEntry[];
-            if (treeID) {
-               tree = await this.readTree(treeID);
-            } else {
-               tree = [];
-            }
-
-            const current = parts[0];
-
-            let existing = tree.findIndex(([, , name]) => name == current);
-
-            let entry: TreeEntry;
-
-            if (parts.length == 1) {
-               entry = ["blob", objectID, current];
-            } else {
-               entry = [
-                  "tree",
-                  await makeTree(existing >= 0 ? tree[existing][1] : undefined, parts.slice(1)),
-                  current,
-               ];
-            }
-
-            if (existing >= 0) {
-               let ex = tree[existing];
-               if (parts.length == 1 && ex[0] == "tree")
-                  throw new Error("This change would overwrite a folder!");
-               tree[existing] = entry;
-            } else {
-               tree.push(entry);
-            }
-
-            let treeString = tree.map(([type, hash, name]) => `${type} ${hash} ${name}`).join("\n");
-
-            let newTreeID = await this.writeObject(treeString);
-
-            return newTreeID;
-         };
-
-         let newTree = await makeTree(head?.root, parts);
-         let commit = await this.makeCommit(newTree, head);
-         await this.writeHead(commit);
-      } finally {
-         await lock();
-      }
-   }
-
-   async treeFindObjectID(
       treeID: string,
       parts: string[],
       type: NodeType
@@ -192,9 +115,10 @@ export default class Repository {
       }
    }
 
-   async readTree(id: string): Promise<TreeEntry[]> {
+   private async readTree(id: string): Promise<TreeEntry[]> {
       const tree = await this.readObject(id, true);
-      return tree.split("\n").map((e) => {
+      if (tree == undefined) throw new Error("Invalid treeID");
+      return tree.split("\n").filter(e => e !== "").map((e) => {
          const entry = e.split(" ") as TreeEntry;
          const [type] = entry;
 
@@ -210,7 +134,7 @@ export default class Repository {
       });
    }
 
-   async makeCommit(treeID: string, old?: Commit) {
+   private async makeCommit(treeID: string, old?: Commit) {
       if (!old) {
          // Could be called once more than necessary, if no HEAD exists.
          old = await this.readHead();
@@ -221,10 +145,10 @@ export default class Repository {
       return await this.writeObject(commitStr);
    }
 
-   async readCommit(id: string): Promise<Commit> {
+   private async readCommit(id: string): Promise<Commit> {
-      if (!(await this.hasObject(id))) throw new Error(`Commit with id ${id} not found!`);
-
       const commitStr = await this.readObject(id, true);
+      if (!commitStr)
+         throw new Error(`Commit with id ${id} not found!`);
 
       let commit: Commit = { id } as any;
       for (const entry of commitStr.split("\n")) {
@@ -236,8 +160,10 @@ export default class Repository {
                break;
             case "before": // TODO: Simple validity checks
                commit.before = value;
+               break;
             case "date":
                commit.date = new Date(value);
+               break;
          }
       }
 
@@ -248,18 +174,177 @@ export default class Repository {
       return commit;
    }
 
-   async readHead(): Promise<Commit | undefined> {
+   private async readHead(): Promise<Commit | undefined> {
       if (!(await this.#store.has("HEAD"))) return undefined;
       const head = new TextDecoder().decode(await this.#store.get("HEAD"));
 
       return this.readCommit(head);
    }
 
-   async writeHead(commitID: string): Promise<void> {
+   private async writeHead(commitID: string): Promise<void> {
       await this.#store.set("HEAD", new TextEncoder().encode(commitID));
    }
 
+   //#endregion
+
+
+   //#region public
+   async clean() {
+      // TODO: Cleanup broken things
+   }
+
+   async readdir(path: string): Promise<TreeEntry[]> {
+      const parts = this.splitPath(path);
+      const head = await this.readHead();
+      if (!head) return [];
+
+      const treeID = await this.treeFindObjectID(head.root, parts, "tree");
+
+      if (!treeID) return [];
+
+      return this.readTree(treeID);
+   }
+
+   async read(path: string): Promise<Uint8Array | undefined> {
+      const parts = this.splitPath(path);
+      const head = await this.readHead();
+      if (!head) return undefined;
+
+      const objectID = await this.treeFindObjectID(head.root, parts, "blob");
+
+      if (!objectID) return undefined;
+
+      return this.readObject(objectID);
+   }
+
+   async readByID(id: string) {
+      return this.readObject(id);
+   }
+
+   async log(path: string): Promise<any[]> {
+      const parts = this.splitPath(path);
+      const head = await this.readHead();
+      if (!head) return [];
+
+      let currObjectID = await this.treeFindObjectID(head.root, parts, "blob");
+
+      let history: NodeLog[] = [];
+
+      if (currObjectID) {
+         history.push({
+            id: currObjectID,
+            commit: head
+         })
+      }
+
+      let currCommit = head.before;
+
+      while (currCommit !== undefined) {
+         try {
+            let commit = await this.readCommit(currCommit);
+            let res = await this.treeFindObjectID(commit.root, parts, "blob");
+            if (res !== currObjectID) {
+               history.push({
+                  id: res,
+                  commit,
+               });
+            }
+            currObjectID = res;
+            currCommit = commit.before;
+         } catch (err) {
+            break;
+         }
+      }
+
+      return history;
+   }
+
+
+   async delete(path: string) {
+      return this.write(path, undefined);
+   }
+
+   async write(path: string, data: Uint8Array | undefined) {
+      const parts = this.splitPath(path);
+
+      let objectID: string | undefined = undefined;
+      if (data) {
+         objectID = await this.writeObject(data);
+      }
+
+      const lock = await this.#store.getLock();
+      //TODO: Improve need of locking.
+      try {
+         const head = await this.readHead();
+
+         const makeTree = async (treeID: string | undefined, parts: string[]) => {
+            let tree: TreeEntry[];
+            if (treeID) {
+               tree = await this.readTree(treeID);
+            } else {
+               tree = [];
+            }
+
+            const current = parts[0];
+
+            let existing = tree.findIndex(([, , name]) => name == current);
+
+            let entry: TreeEntry | undefined = undefined;
+
+            if (parts.length == 1) {
+               if (objectID) {
+                  entry = ["blob", objectID, current];
+               }
+            } else {
+               let newTreeID = await makeTree(existing >= 0 ? tree[existing][1] : undefined, parts.slice(1));
+               if (newTreeID) {
+                  entry = [
+                     "tree",
+                     newTreeID,
+                     current,
+                  ];
+               }
+            }
+
+            if (existing >= 0) {
+               let ex = tree[existing];
+               if (parts.length == 1 && ex[0] == "tree")
+                  throw new Error("This change would overwrite a folder!");
+               if (entry)
+                  tree[existing] = entry;
+               else {
+                  tree = [...tree.slice(0, existing), ...tree.slice(existing + 1)];
+               }
+            } else {
+               if (entry)
+                  tree.push(entry);
+            }
+
+            if (tree.length > 0) {
+               let treeString = tree.map(([type, hash, name]) => `${type} ${hash} ${name}`).join("\n");
+
+               let newTreeID = await this.writeObject(treeString);
+
+               return newTreeID;
+            } else {
+               return undefined;
+            }
+         };
+
+         let newTree = await makeTree(head?.root, parts);
+         if (!newTree) { //TODO: Is this what i want?
+            newTree = await this.writeObject("");
+         }
+         let commit = await this.makeCommit(newTree, head);
+         await this.writeHead(commit);
+      } finally {
+         await lock();
+      }
+   }
+
    async close() {
       if (this.#store.close) return this.#store?.close();
    }
+
+   //#endregion
 }

src/test.ts

@@ -1,27 +1,164 @@
-import Repository from "./repo";
+import Repository, { IDataStore } from "./repo";
 import FSDataStore from "./datasources/fs";
 import * as Fs from "fs";
+import { expect } from "chai";
+import * as Crypto from "crypto";
 
 const t = (t: string) => new TextEncoder().encode(t);
+const td = (t: Uint8Array | undefined) => new TextDecoder().decode(t);
+const exists = (path: string) => Fs.promises.access(path).then(() => true).catch(() => false)
 
-async function test() {
+let test = 0;
-   await Fs.promises.rm("./testrepo", { recursive: true, force: true });
+let repoPath = "";
-   const ds = new FSDataStore("./testrepo");
-   const rep = new Repository(ds);
 
-   console.log(new TextDecoder().decode(await rep.read("hi.txt")));
+beforeEach(async () => {
+   repoPath = "./testrepo_" + test;
+   console.log(" \tRunning at repo:", repoPath);
+   await Fs.promises.rm(repoPath, { recursive: true, force: true });
+})
 
-   await Promise.all([
+afterEach(async () => {
-      rep.write("hi.txt", t("Hallo Welt: " + new Date().toLocaleString())),
+   test++;
-      rep.write("hi_hallo.txt", t("Hallo Welt: " + new Date().toLocaleString())),
+})
-      rep.write("hi_hallo3.txt", t("Hallo Welt: " + new Date().toLocaleString())),
-   ]);
 
-   console.log(new TextDecoder().decode(await rep.read("hi.txt")));
+describe("NodeJS DataStore", () => {
+   it("should throw error when creating new instance", () => {
+      const ds = new FSDataStore(repoPath);
+      expect(ds).to.not.be.undefined;
+   })
 
-   console.log((await rep.readdir("/"))?.map((e) => e[2]));
+   it("should return undefined on read on non-existant field", async () => {
+      const ds = new FSDataStore(repoPath);
+      let val = await ds.get("test");
+      expect(val).to.be.undefined;
+   })
 
-   await rep.close();
+   it("should not fail when writing a new key and create the necessary files", async () => {
-}
+      const ds = new FSDataStore(repoPath);
+      const text = "Hallo Welt";
+      await ds.set("test", t(text));
 
-test();
+      let ex = await exists(repoPath + "/test");
+      expect(ex).to.be.true;
+
+      let file_cont = await Fs.promises.readFile(repoPath + "/test", "utf-8");
+      expect(file_cont).to.equal(text);
+   })
+
+   it("has should return false on non-existing field", async () => {
+      const ds = new FSDataStore(repoPath);
+      expect(await ds.has("test")).to.be.false;
+   })
+
+   it("has should return true on existing field", async () => {
+      const ds = new FSDataStore(repoPath);
+      const cont = t("Hallo Welt");
+      await ds.set("test", cont);
+
+      let ex = await exists(repoPath + "/test");
+      expect(ex).to.be.true;
+   })
+
+   it("get should return value of existing field", async () => {
+      const ds = new FSDataStore(repoPath);
+      const text = "Hallo Welt";
+      await ds.set("test", t(text));
+
+      expect(td(await ds.get("test"))).to.equal(text);
+   })
+})
+
+describe("Basic Repo functions", () => {
+   let ds: IDataStore = new FSDataStore(repoPath);
+   beforeEach(() => {
+      ds = new FSDataStore(repoPath);
+   })
+
+   it("should not throw error when creating new instance", () => {
+      const repo = new Repository(ds)
+      expect(repo).to.not.be.undefined;
+   })
+
+   it("should return an empty list on an empty repository", async () => {
+      const repo = new Repository(ds)
+      const list = await repo.readdir("/");
+      expect(list).to.be.an("array");
+      expect(list.length).to.equal(0)
+   })
+
+   it("should return undefined on non-existant file", async () => {
+      const repo = new Repository(ds)
+      let res = await repo.read("test");
+      expect(res).to.be.undefined;
+   })
+
+   it("should be possible to write data", async () => {
+      const testData = "Hallo Welt";
+      const repo = new Repository(ds)
+      await repo.write("test", t(testData));
+
+      let res = await Fs.promises.readdir(repoPath + "/objects");
+      expect(res.length).to.be.equal(3);
+
+      expect(await exists(repoPath + "/HEAD")).to.be.true;
+   })
+
+   it("should be possible to write nested data", async () => {
+      const testData = "Hallo Welt";
+      const repo = new Repository(ds)
+      await repo.write("test/hallo-welt", t(testData));
+
+      let res = await Fs.promises.readdir(repoPath + "/objects");
+
+      expect(res.length).to.be.equal(4);
+      expect(await exists(repoPath + "/HEAD")).to.be.true;
+   })
+
+   it("readdir should return the given entries", async () => {
+      const testData = "Hallo Welt";
+      const repo = new Repository(ds)
+      await repo.write("test/hallo-welt", t(testData));
+      await repo.write("tests", t(testData));
+
+      const res = await repo.readdir("/")
+      expect(res.length).to.be.equal(2);
+      // expect(res).to.include.
+   })
+
+   it("should be possible to read back written data", async () => {
+      const testData = "Hallo Welt";
+      const repo = new Repository(ds)
+      await repo.write("test", t(testData));
+
+      const res = await repo.read("test");
+      expect(td(res)).to.equal(testData);
+   })
+
+   it("should be possible to delete entries", async () => {
+      const testData = "Hallo Welt";
+      const repo = new Repository(ds)
+      await repo.write("test", t(testData));
+
+      const res = await repo.read("test");
+      expect(td(res)).to.equal(testData);
+
+      await repo.delete("test");
+
+      const res2 = await repo.read("test");
+      expect(res2).to.be.undefined;
+   })
+
+   it("should be possible to get a list of all versions of a file", async () => {
+      const testData = "Hallo Welt";
+      const repo = new Repository(ds)
+      await repo.write("test", t(testData));
+      await repo.write("test", t(testData + 1));
+      await repo.write("test", t(testData + 2));
+      await repo.write("test", t(testData + 3));
+      await repo.write("test", t(testData + 4));
+
+      const res = await repo.log("test");
+      expect(res).to.not.be.undefined;
+      expect(res.length).to.equal(5);
+   })
+})