61 lines
2.3 KiB
Kotlin
61 lines
2.3 KiB
Kotlin
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package com.hawhamburg.micr0bu
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import com.hawhamburg.micr0bu.domain.vam.VamGenerationRules
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import com.hawhamburg.micr0bu.domain.vam.VamGenerationRules.Kinematics
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import org.junit.Assert.assertFalse
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import org.junit.Assert.assertTrue
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import org.junit.Test
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/** TS 103 300-3 clause 6.4 items 1 to 4, with the Table 16/17 values. */
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class VamGenerationRulesTest {
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private val here = Kinematics(53.5546667, 10.0223889, speedMps = 3.0, headingDeg = 90.0)
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private fun sentAt(ms: Long, k: Kinematics = here) = VamGenerationRules().apply { onSent(ms, k, withLowFrequency = true) }
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@Test
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fun `the first VAM is always due`() {
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assertTrue(VamGenerationRules().due(0, here))
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}
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@Test
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fun `nothing is due within T_GenVamMin even after a big jump`() {
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assertFalse(sentAt(1_000).due(1_050, here.copy(latitude = here.latitude + 0.001)))
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}
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@Test
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fun `a stationary VRU gets one VAM every T_GenVamMax`() {
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val rules = sentAt(1_000)
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assertFalse(rules.due(5_900, here))
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assertTrue(rules.due(6_001, here))
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}
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@Test
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fun `position, speed and heading changes trigger past their thresholds only`() {
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val rules = sentAt(1_000)
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// ~3.3 m north: under 4 m. ~5.6 m: over.
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assertFalse(rules.due(2_000, here.copy(latitude = here.latitude + 0.00003)))
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assertTrue(rules.due(2_000, here.copy(latitude = here.latitude + 0.00005)))
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assertFalse(rules.due(2_000, here.copy(speedMps = 3.4)))
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assertTrue(rules.due(2_000, here.copy(speedMps = 3.6)))
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assertFalse(rules.due(2_000, here.copy(headingDeg = 93.0)))
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assertTrue(rules.due(2_000, here.copy(headingDeg = 95.0)))
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}
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@Test
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fun `heading change is measured the short way round north`() {
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val rules = sentAt(1_000, here.copy(headingDeg = 358.0))
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assertFalse(rules.due(2_000, here.copy(headingDeg = 1.0))) // 3 degrees across north
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assertTrue(rules.due(2_000, here.copy(headingDeg = 3.0))) // 5 degrees
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}
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@Test
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fun `the low-frequency container goes with the first VAM, then every T_GenVamLFMin`() {
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val rules = VamGenerationRules()
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assertTrue(rules.includeLowFrequency(0))
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rules.onSent(0, here, withLowFrequency = true)
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assertFalse(rules.includeLowFrequency(1_999))
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assertTrue(rules.includeLowFrequency(2_000))
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}
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}
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