From bf6a4837df358730ae96348252530c9abfc4b0e5 Mon Sep 17 00:00:00 2001
From: Aaro Koivukangas <aaro@koivukangas.cc>
Date: Thu, 20 Aug 2026 09:58:36 +0300
Subject: [PATCH] [UnitTests] Add studyRightTypeFilter tests

---
 .../tests/unit/filters/studyRightType.test.ts | 88 +++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 services/frontend/tests/unit/filters/studyRightType.test.ts

diff --git a/services/frontend/tests/unit/filters/studyRightType.test.ts b/services/frontend/tests/unit/filters/studyRightType.test.ts
new file mode 100644
index 000000000..d4dfce072
--- /dev/null
+++ b/services/frontend/tests/unit/filters/studyRightType.test.ts
@@ -0,0 +1,88 @@
+import { assert, describe, it } from 'vitest'
+
+import { studyRightTypeFilter } from '@/components/FilterView/filters/studyRightType'
+import { ExtentCode } from '@oodikone/shared/types'
+import { StudentStudyRight } from '@oodikone/shared/types/studentData'
+
+import { createStudent, createStudyRight as createBaseStudyRight, createStudyRightElement } from './helpers'
+
+const createStudyRight = (overrides: Partial<StudentStudyRight> = {}): StudentStudyRight =>
+  createBaseStudyRight({ studyRightElements: [createStudyRightElement({ code: 'KH50' })], ...overrides })
+
+const ARGS = { programme: 'KH50' }
+
+enum StudyRightMode {
+  ALL = '0',
+  BACHELOR_AND_MASTER = '1',
+  MASTER = '2',
+}
+
+void describe('studyRightTypeFilter', () => {
+  void it('should include all students when mode is All', () => {
+    const student = createStudent({ studyRights: [createStudyRight({ extentCode: ExtentCode.MASTER })] })
+
+    const result = studyRightTypeFilter().filter(student, {
+      args: ARGS,
+      options: { mode: StudyRightMode.ALL },
+      precomputed: undefined,
+    })
+
+    assert.strictEqual(result, true)
+  })
+
+  void it('should exclude student when the student has no matching study right', () => {
+    const student = createStudent({ studyRights: [] })
+
+    const result = studyRightTypeFilter().filter(student, {
+      args: ARGS,
+      options: { mode: StudyRightMode.BACHELOR_AND_MASTER },
+      precomputed: undefined,
+    })
+
+    assert.strictEqual(result, false)
+  })
+
+  void it('should include student with Bachelor + master study right when the filter state is bachelor + master', () => {
+    const student = createStudent({
+      studyRights: [createStudyRight({ extentCode: ExtentCode.BACHELOR_AND_MASTER })],
+    })
+
+    const result = studyRightTypeFilter().filter(student, {
+      args: ARGS,
+      options: { mode: '1' },
+      precomputed: undefined,
+    })
+
+    assert.strictEqual(result, true)
+  })
+
+  void it('should include student with Master study right when the filter state is master only', () => {
+    const student = createStudent({ studyRights: [createStudyRight({ extentCode: ExtentCode.MASTER })] })
+
+    const result = studyRightTypeFilter().filter(student, {
+      args: ARGS,
+      options: { mode: StudyRightMode.MASTER },
+      precomputed: undefined,
+    })
+
+    assert.strictEqual(result, true)
+  })
+
+  void it('should exclude student with only Bachelor + master study right when the study right is master only', () => {
+    const student = createStudent({ studyRights: [createStudyRight({ extentCode: ExtentCode.BACHELOR_AND_MASTER })] })
+
+    const result = studyRightTypeFilter().filter(student, {
+      args: ARGS,
+      options: { mode: StudyRightMode.MASTER },
+      precomputed: undefined,
+    })
+
+    assert.strictEqual(result, false)
+  })
+
+  void it('isActive should match the filter state', () => {
+    assert.strictEqual(studyRightTypeFilter().isActive({ mode: StudyRightMode.ALL }, undefined), false)
+    assert.strictEqual(studyRightTypeFilter().isActive({ mode: StudyRightMode.BACHELOR_AND_MASTER }, undefined), true)
+    assert.strictEqual(studyRightTypeFilter().isActive({ mode: StudyRightMode.MASTER }, undefined), true)
+  })
+})