feat(remote): add streaming TeachersParser

2026-09-19 14:47:46 +03:00
parent 1a4bff73d0
commit 458e4c4e69
7 changed files with 18086 additions and 29 deletions
@@ -0,0 +1,76 @@
+package agzam.vyatsu
+
+import agzam.vyatsu.data.remote.TeachersParser
+import agzam.vyatsu.domain.model.DateRange
+import agzam.vyatsu.domain.model.Season
+import java.io.InputStream
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class TeachersPipelineMemoryTest {
+
+    private fun fixture(): InputStream =
+        checkNotNull(javaClass.getResourceAsStream("/teacher.html")) {
+            "Fixture teacher.html not found in src/test/resources"
+        }
+
+    @Test
+    fun parsesDepartmentsAndFaculties() {
+        val result = fixture().use(TeachersParser::parseStream)
+        assertTrue("expected >=4 departments", result.departments.size >= 4)
+
+        val ids = result.departments.map { it.departmentId }.toSet()
+        assertEquals(setOf("11111", "22222", "33333", "44444"), ids)
+
+        val names = result.departments.map { it.name }
+        assertTrue(
+            "nested tags must be stripped from kafPeriod names",
+            names.contains("Кафедра технологий и конструирования машин и аппаратов")
+        )
+
+        val avt = result.departments.first { it.departmentId == "11111" }
+        assertTrue("faculty must be mapped via shortname", avt.faculty.contains("ФАВТ"))
+    }
+
+    @Test
+    fun chunkBoundarySafe() {
+        val full = fixture().use(TeachersParser::parseStream)
+        val limited = limitReads(fixture(), 64).use(TeachersParser::parseStream)
+        assertEquals(full, limited)
+    }
+
+    @Test
+    fun seasonAndRanges() {
+        val result = fixture().use(TeachersParser::parseStream)
+
+        val hasAutumn = result.dateRanges.values.any { it[Season.AUTUMN]?.isNotEmpty() == true }
+        val hasSpring = result.dateRanges.values.any { it[Season.SPRING]?.isNotEmpty() == true }
+        assertTrue("AUTUMN season must be present", hasAutumn)
+        assertTrue("SPRING season must be present", hasSpring)
+
+        val autumn = result.dateRanges["11111"]?.get(Season.AUTUMN).orEmpty()
+        assertTrue(
+            "DateRange must be parsed from URL groups",
+            autumn.contains(DateRange("01092026", "13092026"))
+        )
+        assertTrue(
+            "second AUTUMN range must be present",
+            autumn.contains(DateRange("14092026", "27092026"))
+        )
+
+        val spring = result.dateRanges["44444"]?.get(Season.SPRING).orEmpty()
+        assertTrue(
+            "SPRING DateRange must be parsed from URL groups",
+            spring.contains(DateRange("02022026", "27022026"))
+        )
+    }
+
+    private fun limitReads(input: InputStream, maxBytes: Int): InputStream =
+        object : InputStream() {
+            override fun read(): Int = input.read()
+
+            override fun read(b: ByteArray, off: Int, len: Int): Int =
+                input.read(b, off, minOf(len, maxBytes))
+        }
+}