basic movement implempented and tested

01_UC_RoverMovement.txt

+You are a tester tasked with creating comprehensive test cases for a given usecase description.
+
+## Usecase description
+
+{
+    "name": "Driving the Rover on Mars",
+    "scenario": "MissionControl sends drive commands to move the rover across the plateau.",
+    "actors": "MissionControl",
+    "preconditions": "Rover is landed on the plateau at position (0,0)",
+    "steps": [
+        "MissionControl sends command string (e.g. 'FFRLF') to the rover",
+        "Rover interprets each character and updates position/heading accordingly",
+        "Before each move, Rover checks for obstacles or plateau boundaries",
+        "If an obstacle or edge is detected, Rover stops and ignores remaining commands",
+        "Rover returns the string of successfully executed commands"
+    ]
+}
+
+## Testcase
+[
+    {
+        "name": "Rover Moves Successfully with No Obstacles",
+        "description": "Verify that the rover moves as expected with valid input and no obstacles",
+        "input": {
+            "command": "FFRFF"
+        },
+        "expected": {
+            "outcome": "Rover moved successfully",
+            "executedCommands": "FFRFF"
+        }
+    },
+    {
+        "name": "Rover Stops at Obstacle",
+        "description": "Verify that the rover stops when an obstacle is detected and remaining commands are ignored",
+        "input": {
+            "command": "FFRFF"
+        },
+        "expected": {
+            "outcome": "Rover stopped due to obstacle",
+            "executedCommands": "FFR"
+        }
+    },
+    {
+        "name": "Invalid Command Input",
+        "description": "Verify that the rover handles invalid commands gracefully",
+        "input": {
+            "command": "FXZ"
+        },
+        "expected": {
+            "outcome": "Invalid command encountered",
+            "executedCommands": "F"
+        }
+    }
+]

backuprover1.py

+# RoverMovement: (F, B, L, R)
+# ObstacleDetection : (ODS)
+
+DIRECTIONS = ['N', 'E', 'S', 'W']
+MOVES = {
+    'N': (0, 1),
+    'E': (1, 0),
+    'S': (0, -1),
+    'W': (-1, 0)
+}
+
+class Rover:
+    def __init__(self):
+        self.x = 0
+        self.y = 0
+        self.heading = 0  
+
+    def drive(self, command_string):
+        executed = ""
+        for cmd in command_string:
+            if cmd in ['F', 'B']:
+                dx, dy = MOVES[DIRECTIONS[self.heading]]
+                if cmd == 'B':
+                    dx, dy = -dx, -dy
+                self.x += dx
+                self.y += dy
+            elif cmd == 'L':
+                self.heading = (self.heading - 1) % 4
+            elif cmd == 'R':
+                self.heading = (self.heading + 1) % 4
+            else:
+                break  # stop on invalid command
+            executed += cmd
+        return executed
+
+    def get_position(self):
+        return (self.x, self.y)
+
+    def get_heading(self):
+        return DIRECTIONS[self.heading]
+
+  

test_rover1.py

+from backuprover1 import Rover
+
+# FEATURE 1: Basic Movement
+
+def test_basic_forward_movement():
+    rover = Rover()
+    result = rover.drive("FFRFF")
+    assert result == "FFRFF"
+    assert rover.get_position() == (2, 2)
+
+def test_invalid_command_stops_execution():
+    rover = Rover()
+    result = rover.drive("FXZ")
+    assert result == "F"
+
+def test_rotation_behavior():
+    rover = Rover()
+    rover.drive("LL")
+    assert rover.get_heading() == 'S'