tests: added ConvertersTest and LessonTypeTest

app/src/test/java/agzam/vyatsu/data/local/ConvertersTest.kt

@@ -0,0 +1,57 @@
+package agzam.vyatsu.data.local
+
+import agzam.vyatsu.domain.model.LessonType
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Test
+import java.time.LocalDate
+import java.time.LocalTime
+
+class ConvertersTest {
+
+    private val converters = Converters()
+
+    @Test
+    fun localDate_roundTripsThroughEpochDay() {
+        val date = LocalDate.of(2026, 9, 14)
+        assertEquals(date, converters.epochDayToLocalDate(converters.localDateToEpochDay(date)))
+    }
+
+    @Test
+    fun nullDate_staysNull() {
+        assertNull(converters.localDateToEpochDay(null))
+        assertNull(converters.epochDayToLocalDate(null))
+    }
+
+    @Test
+    fun localTime_roundTripsThroughMinutes() {
+        assertEquals(
+            LocalTime.of(8, 20),
+            converters.minutesToLocalTime(converters.localTimeToMinutes(LocalTime.of(8, 20)))
+        )
+    }
+
+    @Test
+    fun localTime_boundariesMapToMinutes() {
+        assertEquals(0, converters.localTimeToMinutes(LocalTime.of(0, 0)))
+        assertEquals(1439, converters.localTimeToMinutes(LocalTime.of(23, 59)))
+    }
+
+    @Test
+    fun nullTime_staysNull() {
+        assertNull(converters.localTimeToMinutes(null))
+        assertNull(converters.minutesToLocalTime(null))
+    }
+
+    @Test
+    fun lessonType_roundTripsEveryValue() {
+        for (type in LessonType.entries) {
+            assertEquals(type, converters.stringToLessonType(converters.lessonTypeToString(type)))
+        }
+    }
+
+    @Test
+    fun unknownLessonType_isOther() {
+        assertEquals(LessonType.OTHER, converters.stringToLessonType("NOPE"))
+    }
+}

app/src/test/java/agzam/vyatsu/domain/model/LessonTypeTest.kt

@@ -0,0 +1,40 @@
+package agzam.vyatsu.domain.model
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class LessonTypeTest {
+
+    @Test
+    fun fromRaw_recognizesExactLabels() {
+        assertEquals(LessonType.LECTURE, LessonType.fromRaw("Лекция"))
+        assertEquals(LessonType.PRACTICE, LessonType.fromRaw("Практическое занятие"))
+        assertEquals(LessonType.LABORATORY, LessonType.fromRaw("Лабораторная работа"))
+    }
+
+    @Test
+    fun fromRaw_trimsSurroundingWhitespace() {
+        assertEquals(LessonType.LECTURE, LessonType.fromRaw("  Лекция "))
+    }
+
+    @Test
+    fun fromRaw_unknownValue_isOther() {
+        assertEquals(LessonType.OTHER, LessonType.fromRaw("Семинар"))
+        assertEquals(LessonType.OTHER, LessonType.fromRaw(""))
+    }
+
+    @Test
+    fun labels_matchParserVocabulary() {
+        assertEquals("Лекция", LessonType.LECTURE.label)
+        assertEquals("Практическое занятие", LessonType.PRACTICE.label)
+        assertEquals("Лабораторная работа", LessonType.LABORATORY.label)
+        assertEquals("Занятие", LessonType.OTHER.label)
+    }
+
+    @Test
+    fun fromRaw_roundTripsEveryLabel() {
+        for (type in LessonType.entries) {
+            assertEquals(type, LessonType.fromRaw(type.label))
+        }
+    }
+}