Migrate the remaining usages of truth to kotest.

app/build.gradle.kts

@@ -175,7 +175,6 @@ dependencies {
   implementation(libs.androidxCore)
 
   testImplementation(libs.junit)
-  testImplementation(libs.truth)
   testImplementation(libs.mockk)
 
   implementation(libs.media3.exoplayer)
@@ -202,7 +201,7 @@ dependencies {
 
   androidTestImplementation(libs.androidTest.espresso)
   androidTestImplementation(libs.androidTest.rules)
-  androidTestImplementation(libs.truth)
+  androidTestImplementation(libs.koTest.assert)
   androidTestImplementation(libs.junit)
   androidTestImplementation(libs.compose.ui.test)
   debugImplementation(libs.compose.ui.testManifest)

app/src/androidTest/kotlin/voice/app/misc/MediaAnalyzerInstrumentationTest.kt

@@ -5,7 +5,8 @@ import androidx.documentfile.provider.DocumentFile
 import androidx.test.core.app.ApplicationProvider
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
-import com.google.common.truth.Truth.assertThat
+import io.kotest.matchers.nulls.shouldBeNull
+import io.kotest.matchers.shouldBe
 import kotlinx.coroutines.runBlocking
 import org.junit.Rule
 import org.junit.Test
@@ -27,20 +28,20 @@ class MediaAnalyzerInstrumentationTest {
   @Test(timeout = 1000)
   fun defectFile_noDuration() {
     val duration = durationOfResource(R.raw.defect)
-    assertThat(duration).isNull()
+    duration.shouldBeNull()
   }
 
   @Test
   fun intactFile_correctDuration() {
     val duration = durationOfResource(R.raw.intact)
-    assertThat(duration).isEqualTo(119040)
+    duration shouldBe 119040
   }
 
   @Test(timeout = 1000)
   fun subsequentCalls() {
-    assertThat(durationOfResource(R.raw.intact)).isEqualTo(119040)
-    assertThat(durationOfResource(R.raw.defect)).isNull()
-    assertThat(durationOfResource(R.raw.intact2)).isEqualTo(119040)
+    durationOfResource(R.raw.intact) shouldBe 119040
+    durationOfResource(R.raw.defect).shouldBeNull()
+    durationOfResource(R.raw.intact2) shouldBe 119040
   }
 
   private fun durationOfResource(@RawRes resource: Int): Long? {

app/src/test/kotlin/voice/app/misc/FormatTimeKtTest.kt

@@ -1,6 +1,6 @@
 package voice.app.misc
 
-import com.google.common.truth.Truth.assertThat
+import io.kotest.matchers.shouldBe
 import org.junit.Test
 import voice.common.formatTime
 import java.util.concurrent.TimeUnit
@@ -11,35 +11,35 @@ class FormatTimeKtTest {
   fun withSeconds_noDuration_no_hours_multipleDigits() {
     val ms = ms(hours = 0, minutes = 59, seconds = 12)
     val formatted = formatTime(ms)
-    assertThat(formatted).isEqualTo("59:12")
+    formatted shouldBe "59:12"
   }
 
   @Test
   fun withSeconds_noDuration_no_hours_singleDigit() {
     val ms = ms(hours = 0, minutes = 5, seconds = 7)
     val formatted = formatTime(ms)
-    assertThat(formatted).isEqualTo("5:07")
+    formatted shouldBe "5:07"
   }
 
   @Test
   fun withSeconds_noDuration_with_hours_multipleDigits() {
     val ms = ms(hours = 123, minutes = 59, seconds = 12)
     val formatted = formatTime(ms)
-    assertThat(formatted).isEqualTo("123:59:12")
+    formatted shouldBe "123:59:12"
   }
 
   @Test
   fun withDuration_andSeconds() {
     val durationMs = ms(hours = 999, minutes = 59, seconds = 12)
     val time = ms(0, 12, 13)
     val formatted = formatTime(time, durationMs)
-    assertThat(formatted).isEqualTo("000:12:13")
+    formatted shouldBe "000:12:13"
   }
 
   @Test
   fun zero() {
     val formatted = formatTime(0)
-    assertThat(formatted).isEqualTo("0:00")
+    formatted shouldBe "0:00"
   }
 
   private fun ms(hours: Long, minutes: Long, seconds: Long): Long {

app/src/test/kotlin/voice/app/mvp/PresenterTest.kt

@@ -1,6 +1,7 @@
 package voice.app.mvp
 
-import com.google.common.truth.Truth.assertThat
+import io.kotest.matchers.booleans.shouldBeFalse
+import io.kotest.matchers.booleans.shouldBeTrue
 import org.junit.Before
 import org.junit.Test
 
@@ -15,11 +16,11 @@ class PresenterTest {
 
   @Test
   fun attached() {
-    assertThat(presenter.attached).isFalse()
+    presenter.attached.shouldBeFalse()
     presenter.attach(View)
-    assertThat(presenter.attached).isTrue()
+    presenter.attached.shouldBeTrue()
     presenter.detach()
-    assertThat(presenter.attached).isFalse()
+    presenter.attached.shouldBeFalse()
   }
 
   private object View

common/build.gradle.kts

@@ -21,7 +21,6 @@ dependencies {
   implementation(libs.viewBinding)
   implementation(libs.serialization.json)
 
-  testImplementation(libs.truth)
   testImplementation(libs.junit)
   testImplementation(libs.androidX.test.core)
   testImplementation(libs.androidX.test.junit)

common/src/test/kotlin/voice/common/comparator/NaturalOrderComparatorTest.kt

@@ -2,7 +2,8 @@ package voice.common.comparator
 
 import android.net.Uri
 import androidx.test.ext.junit.runners.AndroidJUnit4
-import com.google.common.truth.Truth.assertThat
+import io.kotest.matchers.collections.shouldContainExactly
+import io.kotest.matchers.shouldBe
 import org.junit.After
 import org.junit.Before
 import org.junit.Rule
@@ -67,7 +68,7 @@ class NaturalOrderComparatorTest {
       "folder10/1.mp3",
     )
     val sorted = expected.sortedWith(NaturalOrderComparator.stringComparator)
-    assertThat(sorted).isEqualTo(expected)
+    sorted shouldBe expected
   }
 
   @Test
@@ -105,19 +106,17 @@ class NaturalOrderComparatorTest {
         .build()
     }
 
-    assertThat(uris.sortedWith(NaturalOrderComparator.uriComparator))
-      .containsExactlyElementsIn(uris)
-      .inOrder()
+    uris.sortedWith(NaturalOrderComparator.uriComparator)
+      .shouldContainExactly(uris)
   }
 
   @Test
   fun uriComparatorFiles() {
     val expected = testFiles()
     val uris = expected.map { Uri.fromFile(it) }
 
-    assertThat(uris.sortedWith(NaturalOrderComparator.uriComparator))
-      .containsExactlyElementsIn(uris)
-      .inOrder()
+    uris.sortedWith(NaturalOrderComparator.uriComparator)
+      .shouldContainExactly(uris)
   }
 
   @After

data/build.gradle.kts

@@ -56,7 +56,6 @@ dependencies {
   testImplementation(libs.androidX.test.runner)
   testImplementation(libs.junit)
   testImplementation(libs.robolectric)
-  testImplementation(libs.truth)
   testImplementation(libs.prefs.inMemory)
   testImplementation(libs.koTest.assert)
   testImplementation(libs.coroutines.test)

data/src/test/kotlin/voice/data/BookComparatorTest.kt

@@ -1,6 +1,6 @@
 package voice.data
 
-import com.google.common.truth.Truth.assertThat
+import io.kotest.matchers.collections.shouldContainExactly
 import org.junit.Test
 
 class BookComparatorTest {
@@ -15,18 +15,18 @@ class BookComparatorTest {
   @Test
   fun byLastPlayed() {
     val sorted = books.sortedWith(BookComparator.ByLastPlayed)
-    assertThat(sorted).containsExactly(b4, b5, b3, b1, b2).inOrder()
+    sorted.shouldContainExactly(b4, b5, b3, b1, b2)
   }
 
   @Test
   fun byName() {
     val sorted = books.sortedWith(BookComparator.ByName)
-    assertThat(sorted).containsExactly(b1, b2, b3, b5, b4).inOrder()
+    sorted.shouldContainExactly(b1, b2, b3, b5, b4)
   }
 
   @Test
   fun byDateAdded() {
     val sorted = books.sortedWith(BookComparator.ByDateAdded)
-    assertThat(sorted).containsExactly(b4, b5, b1, b2, b3).inOrder()
+    sorted.shouldContainExactly(b4, b5, b1, b2, b3)
   }
 }

data/src/test/kotlin/voice/data/BookTest.kt

@@ -1,6 +1,9 @@
 package voice.data
 
+import io.kotest.matchers.ints.shouldBeExactly
 import io.kotest.matchers.longs.shouldBeExactly
+import io.kotest.matchers.nulls.shouldBeNull
+import io.kotest.matchers.shouldBe
 import org.junit.Test
 
 class BookTest {
@@ -36,7 +39,7 @@ class BookTest {
       chapters = chapters,
       currentChapter = chapters.first().id,
     )
-    book.assertThat().positionIs(0)
+    book.position shouldBeExactly 0L
   }
 
   @Test
@@ -47,7 +50,7 @@ class BookTest {
       chapters = chapters,
       currentChapter = chapters.first().id,
     )
-    book.assertThat().positionIs(23)
+    book.position shouldBeExactly 23
   }
 
   @Test
@@ -63,7 +66,7 @@ class BookTest {
       ),
       currentChapter = lastChapterId,
     )
-    book.assertThat().positionIs(123 + 234 + 345)
+    book.position shouldBeExactly 123 + 234 + 345
   }
 
   @Test
@@ -79,7 +82,7 @@ class BookTest {
       ),
       currentChapter = targetChapter,
     )
-    book.assertThat().positionIs(123 + 234 + 23)
+    book.position shouldBeExactly 123 + 234 + 23
   }
 
   @Test
@@ -93,7 +96,7 @@ class BookTest {
       ),
     )
 
-    book.assertThat().durationIs(123 + 234 + 345 + 456)
+    book.duration shouldBeExactly 123 + 234 + 345 + 456
   }
 
   @Test
@@ -105,7 +108,7 @@ class BookTest {
       chapters = listOf(ch1, ch2, ch3),
       currentChapter = ch2.id,
     )
-    book.assertThat().currentChapterIs(ch2)
+    book.currentChapter shouldBe ch2
   }
 
   @Test
@@ -118,7 +121,7 @@ class BookTest {
       currentChapter = ch2.id,
     )
 
-    book.assertThat().currentChapterIndexIs(1)
+    book.content.currentChapterIndex shouldBeExactly 1
   }
 
   @Test
@@ -131,7 +134,7 @@ class BookTest {
       currentChapter = ch2.id,
     )
 
-    book.assertThat().nextChapterIs(ch3)
+    book.nextChapter shouldBe ch3
   }
 
   @Test
@@ -144,7 +147,7 @@ class BookTest {
       currentChapter = ch3.id,
     )
 
-    book.assertThat().nextChapterIs(null)
+    book.nextChapter.shouldBeNull()
   }
 
   @Test
@@ -156,7 +159,7 @@ class BookTest {
       chapters = listOf(ch1, ch2, ch3),
       currentChapter = ch2.id,
     )
-    book.assertThat().previousChapterIs(ch1)
+    book.previousChapter shouldBe ch1
   }
 
   @Test
@@ -168,7 +171,7 @@ class BookTest {
       chapters = listOf(ch1, ch2, ch3),
       currentChapter = ch1.id,
     )
-    book.assertThat().previousChapterIs(null)
+    book.previousChapter.shouldBeNull()
   }
 
   @Suppress("SameParameterValue")

data/src/test/kotlin/voice/data/repo/internals/ConvertersTest.kt

@@ -1,6 +1,6 @@
 package voice.data.repo.internals
 
-import com.google.common.truth.Truth.assertThat
+import io.kotest.matchers.shouldBe
 import org.junit.Test
 import voice.data.MarkData
 import voice.data.legacy.LegacyBookType
@@ -58,6 +58,6 @@ class ConvertersTest {
     val converters = Converters()
     val serialized: S = converters.serialize(value)
     val deSerialized: D = converters.deSerialize(serialized)
-    assertThat(deSerialized).isEqualTo(value)
+    deSerialized shouldBe value
   }
 }