test-runner/src/test/kotlin/org/terst/nav/settings/FeatureFlagsTest.kt


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61

package org.terst.nav.settings

import org.junit.Assert.*
import org.junit.Before
import org.junit.Test

class FeatureFlagsTest {

    private lateinit var flags: InMemoryFeatureFlags

    @Before
    fun setup() {
        flags = InMemoryFeatureFlags()
    }

    @Test
    fun `all sources default to disabled`() {
        for (source in HardwareSource.values()) {
            assertFalse("Expected $source to be disabled by default", flags.isEnabled(source))
        }
    }

    @Test
    fun `setEnabled true enables source`() {
        flags.setEnabled(HardwareSource.AIS_RECEIVER, true)
        assertTrue(flags.isEnabled(HardwareSource.AIS_RECEIVER))
    }

    @Test
    fun `setEnabled false disables source`() {
        flags.setEnabled(HardwareSource.AIS_RECEIVER, true)
        flags.setEnabled(HardwareSource.AIS_RECEIVER, false)
        assertFalse(flags.isEnabled(HardwareSource.AIS_RECEIVER))
    }

    @Test
    fun `toggle flips from false to true`() {
        val result = flags.toggle(HardwareSource.NMEA_INSTRUMENTS)
        assertTrue(result)
        assertTrue(flags.isEnabled(HardwareSource.NMEA_INSTRUMENTS))
    }

    @Test
    fun `toggle flips from true to false`() {
        flags.setEnabled(HardwareSource.NMEA_INSTRUMENTS, true)
        val result = flags.toggle(HardwareSource.NMEA_INSTRUMENTS)
        assertFalse(result)
        assertFalse(flags.isEnabled(HardwareSource.NMEA_INSTRUMENTS))
    }

    @Test
    fun `sources are independent`() {
        flags.setEnabled(HardwareSource.AIS_RECEIVER, true)
        assertFalse(flags.isEnabled(HardwareSource.NMEA_INSTRUMENTS))
    }

    @Test
    fun `toggle returns new state`() {
        assertFalse(flags.toggle(HardwareSource.AIS_RECEIVER).also { assertTrue(it) } == false)
    }
}