Missed a file

Signed-off-by: Geert Mulders <[email protected]>

measure/src/test/kotlin/com/alliander/open/measure/SpecificUnitsTest.kt

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+// SPDX-FileCopyrightText: 2021-2022 Alliander N.V.
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package com.alliander.open.measure
+
+import com.alliander.open.measure.Current.Companion.ampere
+import com.alliander.open.measure.Current.Companion.kiloAmpere
+import com.alliander.open.measure.Energy.Companion.joule
+import com.alliander.open.measure.Energy.Companion.kiloJoule
+import com.alliander.open.measure.Energy.Companion.kiloWattHour
+import com.alliander.open.measure.Energy.Companion.megaJoule
+import com.alliander.open.measure.Energy.Companion.megaWattHour
+import com.alliander.open.measure.Power.Companion.kiloWatt
+import com.alliander.open.measure.Power.Companion.megaWatt
+import com.alliander.open.measure.Power.Companion.watt
+import com.alliander.open.measure.Time.Companion.hours
+import com.alliander.open.measure.Time.Companion.minutes
+import com.alliander.open.measure.Time.Companion.seconds
+import com.alliander.open.measure.Voltage.Companion.kiloVolt
+import com.alliander.open.measure.Voltage.Companion.volt
+import io.kotest.core.spec.style.StringSpec
+import io.kotest.matchers.should
+import io.kotest.matchers.shouldBe
+import io.kotest.matchers.types.beInstanceOf
+
+class SpecificUnitsTest : StringSpec({
+    "The units have the correct measure" {
+        joule should beInstanceOf<Energy>()
+        kiloJoule should beInstanceOf<Energy>()
+        megaJoule should beInstanceOf<Energy>()
+        kiloWattHour should beInstanceOf<Energy>()
+        megaWattHour should beInstanceOf<Energy>()
+
+        watt should beInstanceOf<Power>()
+        kiloWatt should beInstanceOf<Power>()
+        megaWatt should beInstanceOf<Power>()
+
+        seconds should beInstanceOf<Time>()
+        minutes should beInstanceOf<Time>()
+        hours should beInstanceOf<Time>()
+
+        volt should beInstanceOf<Voltage>()
+        kiloVolt should beInstanceOf<Voltage>()
+
+        ampere should beInstanceOf<Current>()
+        kiloAmpere should beInstanceOf<Current>()
+    }
+
+    "power times time is energy" {
+        val power = 10 * kiloWatt
+        val duration = 15 * minutes
+
+        val energy = power * duration
+
+        energy `as` megaJoule shouldBe 9 * megaJoule
+    }
+
+    "current times voltage is power" {
+        val current = 10 * ampere
+        val voltage = 15 * volt
+
+        val power = current * voltage
+
+        power `as` watt shouldBe 150 * watt
+    }
+
+    "voltage times current is power" {
+        val current = 10 * ampere
+        val voltage = 15 * volt
+
+        val power = voltage * current
+
+        power `as` watt shouldBe 150 * watt
+    }
+
+    "power divided by voltage is current" {
+        val power = 150 * watt
+        val voltage = 15 * volt
+
+        val current = power / voltage
+
+        current `as` ampere shouldBe 10 * ampere
+    }
+
+    "power divided by current is voltage" {
+        val power = 150 * watt
+        val current = 10 * ampere
+
+        val voltage = power / current
+
+        voltage `as` volt shouldBe 15 * volt
+    }
+})