From f7027732a1d1e92f4d7525f2a984a24fdb7a0053 Mon Sep 17 00:00:00 2001
From: Martin Odersky <odersky@gmail.com>
Date: Wed, 5 Apr 2017 17:09:15 +0200
Subject: Implementation of proposal changes

 - rename utility methods
 - generate utility methods also for object cases
---
 tests/run/planets.scala | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 tests/run/planets.scala

(limited to 'tests/run/planets.scala')

diff --git a/tests/run/planets.scala b/tests/run/planets.scala
new file mode 100644
index 000000000..2fff01edc
--- /dev/null
+++ b/tests/run/planets.scala
@@ -0,0 +1,26 @@
+enum class Planet(mass: Double, radius: Double) {
+  private final val G = 6.67300E-11
+  def surfaceGravity = G * mass / (radius * radius)
+  def surfaceWeight(otherMass: Double) =  otherMass * surfaceGravity
+}
+object Planet {
+  case MERCURY extends Planet(3.303e+23, 2.4397e6)
+  case VENUS   extends Planet(4.869e+24, 6.0518e6)
+  case EARTH   extends Planet(5.976e+24, 6.37814e6)
+  case MARS    extends Planet(6.421e+23, 3.3972e6)
+  case JUPITER extends Planet(1.9e+27,   7.1492e7)
+  case SATURN  extends Planet(5.688e+26, 6.0268e7)
+  case URANUS  extends Planet(8.686e+25, 2.5559e7)
+  case NEPTUNE extends Planet(1.024e+26, 2.4746e7)
+}
+object Test {
+  def main(args: Array[String]) = {
+    import Planet._
+    assert(enumValueNamed("SATURN") == SATURN)
+    assert(enumValue(2) == EARTH)
+    val earthWeight = args(0).toDouble
+    val mass = earthWeight/EARTH.surfaceGravity
+    for (p <- enumValues)
+      println(s"Your weight on $p is ${p.surfaceWeight(mass)}")
+  }
+}
-- 
cgit v1.2.3


From 92018967be69ffe660a225f0b58f9772388678fe Mon Sep 17 00:00:00 2001
From: Martin Odersky <odersky@gmail.com>
Date: Wed, 5 Apr 2017 17:21:48 +0200
Subject: Update test and add check file

---
 tests/run/planets.check | 8 ++++++++
 tests/run/planets.scala | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 tests/run/planets.check

(limited to 'tests/run/planets.scala')

diff --git a/tests/run/planets.check b/tests/run/planets.check
new file mode 100644
index 000000000..feb6f737d
--- /dev/null
+++ b/tests/run/planets.check
@@ -0,0 +1,8 @@
+Your weight on MERCURY is 37.775761520093525
+Your weight on SATURN is 106.60155388115666
+Your weight on VENUS is 90.49990998410455
+Your weight on URANUS is 90.51271993894251
+Your weight on EARTH is 100.0
+Your weight on NEPTUNE is 113.83280724696579
+Your weight on MARS is 37.873718403712886
+Your weight on JUPITER is 253.05575254957407
diff --git a/tests/run/planets.scala b/tests/run/planets.scala
index 2fff01edc..bcbfd7eeb 100644
--- a/tests/run/planets.scala
+++ b/tests/run/planets.scala
@@ -18,7 +18,7 @@ object Test {
     import Planet._
     assert(enumValueNamed("SATURN") == SATURN)
     assert(enumValue(2) == EARTH)
-    val earthWeight = args(0).toDouble
+    val earthWeight = 100
     val mass = earthWeight/EARTH.surfaceGravity
     for (p <- enumValues)
       println(s"Your weight on $p is ${p.surfaceWeight(mass)}")
-- 
cgit v1.2.3