1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/kotlin/util/math/ProjectionsBoxTest.kt b/src/test/kotlin/util/math/ProjectionsBoxTest.kt
new file mode 100644
index 0000000..04720a3
--- /dev/null
+++ b/src/test/kotlin/util/math/ProjectionsBoxTest.kt
@@ -0,0 +1,28 @@
+package moe.nea.firmament.test.util.math
+
+import java.util.stream.Stream
+import org.junit.jupiter.api.Assertions
+import org.junit.jupiter.api.DynamicTest
+import org.junit.jupiter.api.TestFactory
+import kotlin.streams.asStream
+import net.minecraft.util.math.Vec2f
+import moe.nea.firmament.util.math.Projections
+
+class ProjectionsBoxTest {
+	val Double.degrees get() = Math.toRadians(this)
+
+	@TestFactory
+	fun testProjections(): Stream<DynamicTest> {
+		return sequenceOf(
+			0.0.degrees to Vec2f(1F, 0F),
+			63.4349.degrees to Vec2f(0.5F, 1F),
+		).map { (angle, expected) ->
+			DynamicTest.dynamicTest("ProjectionsBoxTest::projectAngleOntoUnitBox(${angle})") {
+				val actual = Projections.Two.projectAngleOntoUnitBox(angle)
+				fun msg() = "Expected (${expected.x}, ${expected.y}) got (${actual.x}, ${actual.y})"
+				Assertions.assertEquals(expected.x, actual.x, 0.0001F, ::msg)
+				Assertions.assertEquals(expected.y, actual.y, 0.0001F, ::msg)
+			}
+		}.asStream()
+	}
+}