Merge pull request #1 from rjNemo/master

Master
2026-06-06 02:36:48 +00:00 · 2021-08-30 11:55:08 +02:00 · 2021-08-30 11:55:08 +02:00 · 068d32e287
commit 068d32e287
parent 7fdce18e16 dba93e3da5
13 changed files with 487 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@ -127,3 +127,5 @@ dmypy.json

 # Pyre type checker
 .pyre/
+
+.idea/
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@ -0,0 +1,16 @@
+test:
+  script:
+  - apt-get update -qy
+  - apt-get install -y python-dev python-pip
+  - pip install -r requirements.txt
+  - pytest -v tests
+
+staging:
+  type: deploy
+  script:
+  - apt-get update -qy
+  - apt-get install -y python-dev
+  - pip install -r requirements.txt
+  - dpl --provider=heroku --app=$HEROKU_STAGING_APP
+  only:
+  - master
--- a/11
+++ b/11
@ -0,0 +1,11 @@
+run:
+	pipenv run python -m rover.main
+test: tests
+tests:
+	pipenv run pytest -v --cov=. --cov-report=html
+lint:
+	pipenv run black -l 99 .
+	pipenv run flake8 .
+	pipenv run mypy .
+
+.PHONY: run test tests lint
--- a/18
+++ b/18
@ -0,0 +1,18 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+
+[dev-packages]
+pytest = "*"
+pytest-cov = "*"
+black = "*"
+mypy = "*"
+
+[requires]
+python_version = "3.9"
+
+[pipenv]
+allow_prereleases = true
--- a/Pipfile.lock
+++ b/Pipfile.lock
@ -0,0 +1,256 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "2f01db9a7ea9d9fbf733806a56ecb7cd41a930958d13ff14a9e8d161f3c08c2d"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "3.9"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {},
+    "develop": {
+        "appdirs": {
+            "hashes": [
+                "sha256:7d5d0167b2b1ba821647616af46a749d1c653740dd0d2415100fe26e27afdf41",
+                "sha256:a841dacd6b99318a741b166adb07e19ee71a274450e68237b4650ca1055ab128"
+            ],
+            "version": "==1.4.4"
+        },
+        "attrs": {
+            "hashes": [
+                "sha256:149e90d6d8ac20db7a955ad60cf0e6881a3f20d37096140088356da6c716b0b1",
+                "sha256:ef6aaac3ca6cd92904cdd0d83f629a15f18053ec84e6432106f7a4d04ae4f5fb"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
+            "version": "==21.2.0"
+        },
+        "black": {
+            "hashes": [
+                "sha256:1c7aa6ada8ee864db745b22790a32f94b2795c253a75d6d9b5e439ff10d23116",
+                "sha256:c8373c6491de9362e39271630b65b964607bc5c79c83783547d76c839b3aa219"
+            ],
+            "index": "pypi",
+            "version": "==21.7b0"
+        },
+        "click": {
+            "hashes": [
+                "sha256:8c04c11192119b1ef78ea049e0a6f0463e4c48ef00a30160c704337586f3ad7a",
+                "sha256:fba402a4a47334742d782209a7c79bc448911afe1149d07bdabdf480b3e2f4b6"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==8.0.1"
+        },
+        "coverage": {
+            "hashes": [
+                "sha256:16db4173575901db8f3e6cc05e50fe19c7849b0256f6dc2e0979485184053417",
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+                "sha256:ea784c96ca3b94912176d7adc9c4bb7d1988f36a0223a9ac128f4c834775202c",
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+                "sha256:fdaa96733c9cf85491ad406fd78aa16025a1ea468951545b3da7ee133c150c7a"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==6.0b1"
+        },
+        "iniconfig": {
+            "hashes": [
+                "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3",
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+            ],
+            "version": "==1.1.1"
+        },
+        "mypy": {
+            "hashes": [
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+                "sha256:53fd2eb27a8ee2892614370896956af2ff61254c275aaee4c230ae771cadd885",
+                "sha256:704098302473cb31a218f1775a873b376b30b4c18229421e9e9dc8916fd16150",
+                "sha256:7df1ead20c81371ccd6091fa3e2878559b5c4d4caadaf1a484cf88d93ca06703",
+                "sha256:866c41f28cee548475f146aa4d39a51cf3b6a84246969f3759cb3e9c742fc072",
+                "sha256:a155d80ea6cee511a3694b108c4494a39f42de11ee4e61e72bc424c490e46457",
+                "sha256:adaeee09bfde366d2c13fe6093a7df5df83c9a2ba98638c7d76b010694db760e",
+                "sha256:b6fb13123aeef4a3abbcfd7e71773ff3ff1526a7d3dc538f3929a49b42be03f0",
+                "sha256:b94e4b785e304a04ea0828759172a15add27088520dc7e49ceade7834275bedb",
+                "sha256:c0df2d30ed496a08de5daed2a9ea807d07c21ae0ab23acf541ab88c24b26ab97",
+                "sha256:c6c2602dffb74867498f86e6129fd52a2770c48b7cd3ece77ada4fa38f94eba8",
+                "sha256:ceb6e0a6e27fb364fb3853389607cf7eb3a126ad335790fa1e14ed02fba50811",
+                "sha256:d9dd839eb0dc1bbe866a288ba3c1afc33a202015d2ad83b31e875b5905a079b6",
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+                "sha256:ef565033fa5a958e62796867b1df10c40263ea9ded87164d67572834e57a174d"
+            ],
+            "index": "pypi",
+            "version": "==0.910"
+        },
+        "mypy-extensions": {
+            "hashes": [
+                "sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d",
+                "sha256:2d82818f5bb3e369420cb3c4060a7970edba416647068eb4c5343488a6c604a8"
+            ],
+            "version": "==0.4.3"
+        },
+        "packaging": {
+            "hashes": [
+                "sha256:7dc96269f53a4ccec5c0670940a4281106dd0bb343f47b7471f779df49c2fbe7",
+                "sha256:c86254f9220d55e31cc94d69bade760f0847da8000def4dfe1c6b872fd14ff14"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==21.0"
+        },
+        "pathspec": {
+            "hashes": [
+                "sha256:7d15c4ddb0b5c802d161efc417ec1a2558ea2653c2e8ad9c19098201dc1c993a",
+                "sha256:e564499435a2673d586f6b2130bb5b95f04a3ba06f81b8f895b651a3c76aabb1"
+            ],
+            "version": "==0.9.0"
+        },
+        "pluggy": {
+            "hashes": [
+                "sha256:265a94bf44ca13662f12fcd1b074c14d4b269a712f051b6f644ef7e705d6735f",
+                "sha256:467f0219e89bb5061a8429c6fc5cf055fa3983a0e68e84a1d205046306b37d9e"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==1.0.0.dev0"
+        },
+        "py": {
+            "hashes": [
+                "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3",
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+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==1.10.0"
+        },
+        "pyparsing": {
+            "hashes": [
+                "sha256:10f1886e70da7b76ca1b4cf9bbd60f708ef037892496d5cb7c77ab2982412b2d",
+                "sha256:e96a96967098a5221a78bf94d72930cd1cfaf0ab88dae2ea6bfc2b8b8ccb1930"
+            ],
+            "markers": "python_version >= '3.5'",
+            "version": "==3.0.0b3"
+        },
+        "pytest": {
+            "hashes": [
+                "sha256:50bcad0a0b9c5a72c8e4e7c9855a3ad496ca6a881a3641b4260605450772c54b",
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+            ],
+            "index": "pypi",
+            "version": "==6.2.4"
+        },
+        "pytest-cov": {
+            "hashes": [
+                "sha256:261bb9e47e65bd099c89c3edf92972865210c36813f80ede5277dceb77a4a62a",
+                "sha256:261ceeb8c227b726249b376b8526b600f38667ee314f910353fa318caa01f4d7"
+            ],
+            "index": "pypi",
+            "version": "==2.12.1"
+        },
+        "regex": {
+            "hashes": [
+                "sha256:0696eb934dee723e3292056a2c046ddb1e4dd3887685783a9f4af638e85dee76",
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+                "sha256:4f3e36086d6631ceaf468503f96a3be0d247caef0660c9452fb1b0c055783851",
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+                "sha256:507861cf3d97a86fbe26ea6cc04660ae028b9e4080b8290e28b99547b4e15d89",
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+                "sha256:6729914dd73483cd1c8aaace3ac082436fc98b0072743ac136eaea0b3811d42f",
+                "sha256:7406dd2e44c7cfb4680c0a45a03264381802c67890cf506c147288f04c67177d",
+                "sha256:7684016b73938ca12d160d2907d141f06b7597bd17d854e32bb7588be01afa1d",
+                "sha256:7db58ad61f3f6ea393aaf124d774ee0c58806320bc85c06dc9480f5c7219c250",
+                "sha256:83946ca9278b304728b637bc8d8200ab1663a79de85e47724594917aeed0e892",
+                "sha256:84057cfae5676f456b03970eb78b7e182fddc80c2daafd83465a3d6ca9ff8dbf",
+                "sha256:862b6164e9a38b5c495be2c2854e75fd8af12c5be4c61dc9b42d255980d7e907",
+                "sha256:8ddb4f9ce6bb388ecc97b4b3eb37e786f05d7d5815e8822e0d87a3dbd7100649",
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+                "sha256:a5f3bc727fea58f21d99c22e6d4fca652dc11dbc2a1e7cfc4838cd53b2e3691f",
+                "sha256:a6180dbf5945b27e9420e1b58c3cacfc79ad5278bdad3ea35109f5680fbe16d1",
+                "sha256:b158f673ae6a6523f13704f70aa7e4ce875f91e379bece4362c89db18db189d5",
+                "sha256:cd45b4542134de63e7b9dd653e0a2d7d47ffed9615e3637c27ca5f6b78ea68bb",
+                "sha256:d2404336fd16788ea757d4218a2580de60adb052d9888031e765320be8884309",
+                "sha256:db888d4fb33a2fd54b57ac55d5015e51fa849f0d8592bd799b4e47f83bd04e00",
+                "sha256:dde0ac721c7c5bfa5f9fc285e811274dec3c392f2c1225f7d07ca98a8187ca84",
+                "sha256:de0d06ccbc06af5bf93bddec10f4f80275c5d74ea6d28b456931f3955f58bc8c",
+                "sha256:e02dad60e3e8442eefd28095e99b2ac98f2b8667167493ac6a2f3aadb5d84a17",
+                "sha256:e960fe211496333b2f7e36badf4c22a919d740386681f79139ee346b403d1ca1",
+                "sha256:e9700c52749cb3e90c98efd72b730c97b7e4962992fca5fbcaf1363be8e3b849",
+                "sha256:ee318974a1fdacba1701bc9e552e9015788d6345416364af6fa987424ff8df53"
+            ],
+            "version": "==2021.8.27"
+        },
+        "toml": {
+            "hashes": [
+                "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b",
+                "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"
+            ],
+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'",
+            "version": "==0.10.2"
+        },
+        "tomli": {
+            "hashes": [
+                "sha256:8dd0e9524d6f386271a36b41dbf6c57d8e32fd96fd22b6584679dc569d20899f",
+                "sha256:a5b75cb6f3968abb47af1b40c1819dc519ea82bcc065776a866e8d74c5ca9442"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==1.2.1"
+        },
+        "typing-extensions": {
+            "hashes": [
+                "sha256:0ac0f89795dd19de6b97debb0c6af1c70987fd80a2d62d1958f7e56fcc31b497",
+                "sha256:50b6f157849174217d0656f99dc82fe932884fb250826c18350e159ec6cdf342",
+                "sha256:779383f6086d90c99ae41cf0ff39aac8a7937a9283ce0a414e5dd782f4c94a84"
+            ],
+            "version": "==3.10.0.0"
+        }
+    }
+}
--- a/README.md
+++ b/README.md
@ -0,0 +1,3 @@
+# Mars Rover
+
+See [description](./description.pdf) for more details.
--- a/description.pdf
+++ b/description.pdf
--- a/rover/init.py
+++ b/rover/init.py
--- a/rover/rover.py
+++ b/rover/rover.py
@ -0,0 +1,78 @@
+from dataclasses import dataclass, field
+from typing import Tuple
+
+
+@dataclass(frozen=True)
+class Coordinates:
+    x: int
+    y: int
+    left: str
+    right: str
+
+
+@dataclass
+class Rover:
+    x: int
+    y: int
+    direction: str
+    obstacles: list[list[int]] = field(default_factory=list)
+
+    valid_commands = ("F", "B", "R", "L")
+
+    direction_map = {
+        "NORTH": Coordinates(0, 1, "WEST", "EAST"),
+        "EAST": Coordinates(1, 0, "NORTH", "SOUTH"),
+        "SOUTH": Coordinates(0, -1, "EAST", "WEST"),
+        "WEST": Coordinates(-1, 0, "SOUTH", "NORTH"),
+    }
+
+    def is_valid_command(self, command: str) -> bool:
+        for ch in command:
+            if ch not in self.valid_commands:
+                return False
+
+        return True
+
+    def is_obstacle(self, x: int, y: int) -> bool:
+        return [x, y] in self.obstacles
+
+    def move(self, command: str):
+        if not self.is_valid_command(command):
+            raise ValueError("invalid command. The rover does not move")
+
+        for ch in command:
+            x, y, direction = self._compute_new_coordinates(ch)
+            if obstacle := self.is_obstacle(x, y):
+                return self._new_coordinates_output(obstacle)
+
+            self._apply_new_coordinates(x, y, direction)
+
+        return self._new_coordinates_output()
+
+    def _new_coordinates_output(self, obstacle: bool = False):
+        if obstacle:
+            return self.x, self.y, self.direction, "STOPPED"
+        return self.x, self.y, self.direction
+
+    def _compute_new_coordinates(self, command: str) -> Tuple[int, int, str]:
+        x = self.x
+        y = self.y
+        direction = self.direction
+
+        if command == "B":
+            x -= self.direction_map[self.direction].x
+            y -= self.direction_map[self.direction].y
+        if command == "F":
+            x += self.direction_map[self.direction].x
+            y += self.direction_map[self.direction].y
+        if command == "R":
+            direction = self.direction_map[self.direction].right
+        if command == "L":
+            direction = self.direction_map[self.direction].left
+
+        return x, y, direction
+
+    def _apply_new_coordinates(self, x: int, y: int, direction: str) -> None:
+        self.x = x
+        self.y = y
+        self.direction = direction
--- a/setup.cfg
+++ b/setup.cfg
@ -0,0 +1,18 @@
+[flake8]
+exclude = .git, __pycache__, __init__.py, app/migrations/*
+max-complexity = 13
+max-line-length = 120
+
+[mypy]
+ignore_missing_imports = True
+warn_unused_configs = True
+no_implicit_optional = True
+warn_unused_ignores = True
+warn_unreachable = True
+warn_redundant_casts = True
+#disallow_untyped_defs=True
+
+plugins = pydantic.mypy
+[pydantic-mypy]
+init_forbid_extra = True
+init_typed = True
--- a/tests/init.py
+++ b/tests/init.py
--- a/tests/conftest.py
+++ b/tests/conftest.py
@ -0,0 +1,8 @@
+import pytest as pytest
+
+from rover.rover import Rover
+
+
+@pytest.fixture
+def rover():
+    return Rover(0, 0, "EAST")
--- a/tests/test_rover.py
+++ b/tests/test_rover.py
@ -0,0 +1,77 @@
+import pytest
+
+from rover.rover import Rover
+
+
+def test_rover_initialisation():
+    assert Rover(0, 0, "EAST")
+
+
+def test_rover_can_move(rover):
+    command = "F"
+    assert rover.move(command) is not None
+
+
+@pytest.mark.parametrize(
+    ("init", "command", "expected"),
+    [
+        ((0, 0, "EAST"), "F", (1, 0, "EAST")),
+        ((0, 0, "EAST"), "B", (-1, 0, "EAST")),
+        ((0, 0, "EAST"), "R", (0, 0, "SOUTH")),
+        ((0, 0, "EAST"), "L", (0, 0, "NORTH")),
+        # change starting point
+        ((0, 0, "WEST"), "F", (-1, 0, "WEST")),
+        ((0, 0, "SOUTH"), "R", (0, 0, "WEST")),
+        ((0, 0, "SOUTH"), "F", (0, -1, "SOUTH")),
+    ],
+)
+def test_rover_receive_commands(init, command, expected):
+    rover = Rover(*init)
+    assert rover.move(command) == expected
+
+
+def test_rover_rejects_invalid_commands(rover):
+    command = " W "
+    with pytest.raises(ValueError):
+        rover.move(command)
+
+
+@pytest.mark.parametrize(
+    ("init", "command", "expected"),
+    [
+        ((0, 0, "NORTH"), "FB", (0, 0, "NORTH")),
+        ((0, 0, "NORTH"), "FF", (0, 2, "NORTH")),
+        ((4, 2, "EAST"), "FLFFFRFLB", (6, 4, "NORTH")),
+    ],
+)
+def test_rover_can_receive_multiple_commands(init, command, expected):
+    rover = Rover(*init)
+    assert rover.move(command) == expected
+
+
+@pytest.mark.parametrize(
+    ("init", "obstacles", "command", "expected"),
+    [
+        (
+            (0, 0, "NORTH"),
+            [[0, 1]],
+            "F",
+            (0, 0, "NORTH", "STOPPED"),
+        ),
+        (
+            (0, 0, "NORTH"),
+            [[1, 1]],
+            "FRF",
+            (0, 1, "EAST", "STOPPED"),
+        ),
+        (
+            (4, 2, "EAST"),
+            [[1, 4], [5, 5], [7, 4]],
+            "FLFFFRFLB",
+            (5, 4, "NORTH", "STOPPED"),
+        ),
+    ],
+)
+def test_rover_avoids_obstacles(init, obstacles, command, expected):
+    rover = Rover(*init, obstacles=obstacles)
+    assert rover.move(command) == expected