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ErikSchierboomErikSchierboom
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Add split-second-stopwatch exercise
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‎exercises/split-second-stopwatch/canonical-data.json

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{
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"exercise": "split-second-stopwatch",
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"comments": ["Times are formatted as 'HH:mm:ss'."],
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"cases": [
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{
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"description": "new stopwatch",
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"cases": [
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{
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"uuid": "ddb238ea-99d4-4eaa-a81d-3c917a525a23",
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"description": "starts in ready state",
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"property": "time",
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"input": {
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"commands": [
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{
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"command": "new"
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},
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{
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"command": "state",
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"expected": "ready"
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}
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]
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},
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"expected": {}
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},
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{
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"uuid": "8a892c1e-9ef7-4690-894e-e155a1fe4484",
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"description": "new stopwatch does not have previous laps",
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"property": "time",
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"input": {
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"commands": [
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{
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"command": "new"
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},
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{
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"command": "previousLaps",
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"expected": []
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}
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]
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},
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"expected": {}
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},
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{
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"uuid": "b19635d4-08ad-4ac3-b87f-aca10e844071",
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"description": "current lap has no elapsed time",
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"property": "time",
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"input": {
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"commands": [
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{
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"command": "new"
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},
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{
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"command": "currentLap",
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"expected": "00:00:00"
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}
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]
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},
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"expected": {}
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},
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{
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"uuid": "492eb532-268d-43ea-8a19-2a032067d335",
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"description": "total has no time elapsed",
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"property": "time",
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"input": {
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"commands": [
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{
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"command": "new"
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},
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{
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"command": "total",
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"expected": "00:00:00"
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}
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]
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},
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"expected": {}
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}
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]
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},
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{
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"description": "start",
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"cases": [
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{
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"uuid": "5b2705b6-a584-4042-ba3a-4ab8d0ab0281",
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"description": "changes state to running",
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"property": "time",
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"input": {
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"commands": [
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{
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"command": "new"
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},
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{
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"command": "start"
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},
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{
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"command": "state",
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"expected": "running"
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}
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]
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},
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"expected": {}
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},
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{
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"uuid": "748235ce-1109-440b-9898-0a431ea179b6",
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"description": "does not change previous laps",
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"property": "time",
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"input": {
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"commands": [
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{
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"command": "new"
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},
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{
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"command": "start"
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},
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{
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"command": "previousLaps",
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"expected": []
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}
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]
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},
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"expected": {}
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},
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{
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"uuid": "491487b1-593d-423e-a075-aa78d449ff1f",
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"description": "starts time tracking in current lap",
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"property": "time",
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"input": {
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"commands": [
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{
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"command": "new"
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},
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{
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"command": "start"
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},
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{
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"command": "advanceTime",
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"seconds": 5
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},
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{
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"command": "currentLap",
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"expected": "00:00:05"
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}
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]
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},
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"expected": {}
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},
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{
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"uuid": "a0a7ba2c-8db6-412c-b1b6-cb890e9b72ed",
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"description": "starts time tracking in total",
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"property": "time",
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"input": {
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"commands": [
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{
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"command": "new"
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},
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{
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"command": "start"
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},
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{
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"command": "advanceTime",
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"seconds": 23
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},
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{
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"command": "total",
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"expected": "00:00:23"
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}
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]
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},
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"expected": {}
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},
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{
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"uuid": "7f558a17-ef6d-4a5b-803a-f313af7c41d3",
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"description": "cannot be called from running state",
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"property": "time",
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"input": {
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"commands": [
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{
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"command": "new"
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},
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{
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"command": "start"
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},
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{
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"command": "start",
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"expected": {
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"error": "cannot start an already running stopwatch"
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}
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}
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]
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},
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"expected": {}
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}
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]
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}
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]
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}

‎exercises/split-second-stopwatch/instructions.md

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# Instructions
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Your task is to build a stopwatch that can be used to keep track of lap times.
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The stopwatch has the following functionality:
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- Start: start/resume time tracking
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- Stop: stop (pause) time tracking
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- Current lap: the time tracked for the current lap
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- Previous laps: keeps track of previously recorded laps
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- Reset: reset the current lap and clear previous laps
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- Lap: add the current lap to the previous laps and reset the current lap

‎exercises/split-second-stopwatch/introduction.md

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# Introduction
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As an amateur runner, you've never really felt the need for precise time tracking.
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However, having just enrolled in a local running team, you're now being given precise practice schedules, which are tuned to the second.
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You've therefore decided you need to purchase the _split-second stopwatch_, a basic but very precise stopwatch.

‎exercises/split-second-stopwatch/metadata.toml

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title = "Split-second Stopwatch"
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blurb = "Keep track of time through a digital stopwatch."
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source = "Erik Schierboom"
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source_url = "https://github.com/exercism/problem-specifications/pull/TODO"

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