space-age: Update exercise with version and other updates

exercises/space-age/README.md

@@ -2,9 +2,9 @@
 
 Given an age in seconds, calculate how old someone would be on:
 
-   - Earth: orbital period 365.25 Earth days, or 31557600 seconds
    - Mercury: orbital period 0.2408467 Earth years
    - Venus: orbital period 0.61519726 Earth years
+   - Earth: orbital period 1.0 Earth years, 365.25 Earth days, or 31557600 seconds
    - Mars: orbital period 1.8808158 Earth years
    - Jupiter: orbital period 11.862615 Earth years
    - Saturn: orbital period 29.447498 Earth years

exercises/space-age/lib/example.dart

@@ -1,14 +1,14 @@
 class SpaceAge {
   /// A Mapping of planet as a `String` to corresponding class
   Map<String, Planet> planets = {
-    "Earth": Earth(),
-    "Mercury": Mercury(),
-    "Venus": Venus(),
-    "Mars": Mars(),
-    "Jupiter": Jupiter(),
-    "Saturn": Saturn(),
-    "Uranus": Uranus(),
-    "Neptune": Neptune(),
+    'Earth': Earth(),
+    'Mercury': Mercury(),
+    'Venus': Venus(),
+    'Mars': Mars(),
+    'Jupiter': Jupiter(),
+    'Saturn': Saturn(),
+    'Uranus': Uranus(),
+    'Neptune': Neptune(),
   };
 
   /// Returns age in years on given [planet]

exercises/space-age/pubspec.yaml

@@ -1,4 +1,5 @@
 name: 'space_age'
+version: 1.2.0
 environment:
   sdk: '>=2.0.0 <3.0.0'
 dev_dependencies:

exercises/space-age/test/space_age_test.dart

@@ -1,42 +1,42 @@
-import 'package:test/test.dart';
 import 'package:space_age/space_age.dart';
+import 'package:test/test.dart';
 
-final SpaceAge spaceAge = SpaceAge();
+final spaceAge = SpaceAge();
 
 void main() {
-  group("SpaceAge", ageOnPlanetTests);
+  group('SpaceAge', ageOnPlanetTests);
 }
 
 void ageOnPlanetTests() {
-  test("age on Earth", () {
-    expect(spaceAge.age(planet: "Earth", seconds: 1000000000), equals(31.69));
+  test('age on Earth', () {
+    expect(spaceAge.age(planet: 'Earth', seconds: 1000000000), equals(31.69));
   }, skip: false);
 
-  test("age on Mercury", () {
-    expect(spaceAge.age(planet: "Mercury", seconds: 2134835688), equals(280.88));
+  test('age on Mercury', () {
+    expect(spaceAge.age(planet: 'Mercury', seconds: 2134835688), equals(280.88));
   }, skip: true);
 
-  test("age on Venus", () {
-    expect(spaceAge.age(planet: "Venus", seconds: 189839836), equals(9.78));
+  test('age on Venus', () {
+    expect(spaceAge.age(planet: 'Venus', seconds: 189839836), equals(9.78));
   }, skip: true);
 
-  test("age on Mars", () {
-    expect(spaceAge.age(planet: "Mars", seconds: 2329871239), equals(39.25));
+  test('age on Mars', () {
+    expect(spaceAge.age(planet: 'Mars', seconds: 2129871239), equals(35.88));
   }, skip: true);
 
-  test("age on Jupiter", () {
-    expect(spaceAge.age(planet: "Jupiter", seconds: 901876382), equals(2.41));
+  test('age on Jupiter', () {
+    expect(spaceAge.age(planet: 'Jupiter', seconds: 901876382), equals(2.41));
   }, skip: true);
 
-  test("age on Saturn", () {
-    expect(spaceAge.age(planet: "Saturn", seconds: 3000000000), equals(3.23));
+  test('age on Saturn', () {
+    expect(spaceAge.age(planet: 'Saturn', seconds: 2000000000), equals(2.15));
   }, skip: true);
 
-  test("age on Uranus", () {
-    expect(spaceAge.age(planet: "Uranus", seconds: 3210123456), equals(1.21));
+  test('age on Uranus', () {
+    expect(spaceAge.age(planet: 'Uranus', seconds: 1210123456), equals(0.46));
   }, skip: true);
 
-  test("age on Neptune", () {
-    expect(spaceAge.age(planet: "Neptune", seconds: 8210123456), equals(1.58));
+  test('age on Neptune', () {
+    expect(spaceAge.age(planet: 'Neptune', seconds: 1821023456), equals(0.35));
   }, skip: true);
 }