Add unit tests for shapes

Signed-off-by: trivernis <trivernis@protonmail.com>

.github/workflows/gradle-test.yml

@@ -0,0 +1,36 @@
+name: Gradle Unit Tests
+on:
+  workflow_dispatch:
+  push:
+    branches: [ main, develop, actions, feature/unit-tests ]
+  pull_request:
+    branches: [ main, develop, actions, feature/unit-tests ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup Java
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+
+      - name: Cache build data
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('build.gradle') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+
+      - name: Test
+        run: chmod +x gradlew && ./gradlew test
+
+      - name: Cleanup Gradle Cache
+        run: |
+          rm -f ~/.gradle/caches/modules-2/modules-2.lock
+          rm -f ~/.gradle/caches/modules-2/gc.properties

build.gradle

@@ -48,6 +48,10 @@ repositories {
         name 'mikeprimm'
         url 'https://repo.mikeprimm.com'
     }
+
+    maven {
+        url 'https://jitpack.io'
+    }
 }
 
 dependencies {
@@ -90,6 +94,8 @@ compileTestKotlin {
         jvmTarget = "1.8"
     }
     dependencies {
-        compileOnly group: 'junit', name: 'junit', version: '4.12'
+        implementation group: 'junit', name: 'junit', version: '4.12'
+        implementation 'com.github.seeseemelk:MockBukkit:v1.16-SNAPSHOT'
+        implementation 'io.kotest:kotest-runner-junit5:4.3.2'
     }
 }

src/main/kotlin/net/trivernis/chunkmaster/Chunkmaster.kt

@@ -10,7 +10,6 @@ import org.bukkit.plugin.java.JavaPlugin
 import org.bukkit.scheduler.BukkitTask
 import org.dynmap.DynmapAPI
 import java.lang.IllegalStateException
-import java.lang.NullPointerException
 
 class Chunkmaster : JavaPlugin() {
     lateinit var sqliteManager: SqliteManager
@@ -32,7 +31,7 @@ class Chunkmaster : JavaPlugin() {
         logger.finest("LogLevel: FINEST")
         configure()
 
-        val metrics = Metrics(this)
+        Metrics(this)
 
         langManager = LanguageManager(this)
         langManager.loadProperties()

src/test/kotlin/net/trivernis/chunkmaster/lib/shapes/CircleTest.kt

@@ -0,0 +1,73 @@
+package net.trivernis.chunkmaster.lib.shapes
+
+import io.kotest.matchers.booleans.shouldBeTrue
+import io.kotest.matchers.collections.shouldContainAll
+import io.kotest.matchers.doubles.shouldBeBetween
+import io.kotest.matchers.shouldBe
+import org.junit.Test
+import org.junit.jupiter.api.BeforeEach
+
+class CircleTest {
+    private val circle = Circle(center = Pair(0, 0), radius = 2, start = Pair(0, 0))
+
+    @BeforeEach
+    fun init() {
+        circle.reset()
+    }
+
+    @Test
+    fun `it generates coordinates`() {
+        circle.next().shouldBe(Pair(0, 0))
+        circle.next().shouldBe(Pair(-1, -1))
+        circle.next().shouldBe(Pair(1, 0))
+        circle.next().shouldBe(Pair(-1, 0))
+        circle.next().shouldBe(Pair(1, -1))
+        circle.next().shouldBe(Pair(-1, 1))
+        circle.next().shouldBe(Pair(0, 1))
+        circle.next().shouldBe(Pair(0, -1))
+        circle.next().shouldBe(Pair(1, 1))
+    }
+
+    @Test
+    fun `it reports when reaching the end`() {
+        for (i in 1..25) {
+            circle.next()
+        }
+        circle.endReached().shouldBeTrue()
+    }
+
+    @Test
+    fun `it reports the radius`() {
+        for (i in 1..9) {
+            circle.next()
+        }
+        circle.currentRadius().shouldBe(1)
+    }
+
+    @Test
+    fun `it returns the right edges`() {
+        circle.getShapeEdgeLocations().shouldContainAll(listOf(
+            Pair(2, -1),
+            Pair(2, 0),
+            Pair(2, 1),
+            Pair(1, 2),
+            Pair(0, 2),
+            Pair(-1, 2),
+            Pair(-2, 1),
+            Pair(-2, 0),
+            Pair(-2, -1),
+            Pair(-1, -2),
+            Pair(0, -2),
+            Pair(1, -2),
+        ))
+    }
+
+    @Test
+    fun `it returns the progress`() {
+        circle.progress(2).shouldBe(0)
+        for (i in 1..7) {
+            circle.next()
+        }
+        circle.progress(2).shouldBeBetween(.5, .8, .0)
+    }
+}

src/test/kotlin/net/trivernis/chunkmaster/lib/shapes/SpiralTest.kt

@@ -0,0 +1,62 @@
+package net.trivernis.chunkmaster.lib.shapes
+
+import io.kotest.matchers.booleans.shouldBeTrue
+import io.kotest.matchers.collections.shouldContainAll
+import io.kotest.matchers.shouldBe
+import org.junit.Test
+import org.junit.jupiter.api.BeforeEach
+
+class SpiralTest {
+
+    private val spiral = Spiral(center = Pair(0, 0), radius = 2, start = Pair(0, 0))
+
+    @BeforeEach
+    fun init() {
+        spiral.reset()
+    }
+
+    @Test
+    fun `it generates coordinates`() {
+        spiral.next().shouldBe(Pair(0, 0))
+        spiral.next().shouldBe(Pair(0, 1))
+        spiral.next().shouldBe(Pair(1, 1))
+        spiral.next().shouldBe(Pair(1, 0))
+        spiral.next().shouldBe(Pair(1, -1))
+        spiral.next().shouldBe(Pair(0, -1))
+        spiral.next().shouldBe(Pair(-1, -1))
+        spiral.next().shouldBe(Pair(-1, 0))
+        spiral.next().shouldBe(Pair(-1, 1))
+        spiral.next().shouldBe(Pair(-1, 2))
+        spiral.next().shouldBe(Pair(0, 2))
+    }
+
+    @Test
+    fun `it reports when reaching the end`() {
+        for (i in 1..25) {
+            spiral.next()
+        }
+        spiral.endReached().shouldBeTrue()
+    }
+
+    @Test
+    fun `it reports the radius`() {
+        for (i in 1..9) {
+            spiral.next()
+        }
+        spiral.currentRadius().shouldBe(1)
+    }
+
+    @Test
+    fun `it returns the right edges`() {
+        spiral.getShapeEdgeLocations().shouldContainAll(listOf(Pair(2, 2), Pair(-2, 2), Pair(2, -2), Pair(-2, -2)))
+    }
+
+    @Test
+    fun `it returns the progress`() {
+        spiral.progress(2).shouldBe(0)
+        for (i in 1..8) {
+            spiral.next()
+        }
+        spiral.progress(2).shouldBe(0.5)
+    }
+}