P7 Stream W: TaskFormState + validation (iOS parity)
Pure-function field validators matching iOS TaskFormStates.swift error strings. TaskFormState container derives errors from fields, exposes isValid and typed request builders. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Trey T
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package com.tt.honeyDue.ui.screens.task
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import kotlinx.datetime.LocalDate
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import kotlin.test.Test
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import kotlin.test.assertEquals
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import kotlin.test.assertFalse
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import kotlin.test.assertNotNull
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import kotlin.test.assertNull
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import kotlin.test.assertTrue
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/**
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* Behaviour spec for TaskFormState — the container that wires TaskFormFields
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* to the pure validators and to typed request builders.
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*/
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class TaskFormStateTest {
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private fun validFields(
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residenceId: Int? = 10,
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) = TaskFormFields(
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title = "Change HVAC filter",
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description = "Replace the filter in the hallway unit",
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priorityId = 1,
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categoryId = 2,
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frequencyId = 3,
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dueDate = LocalDate(2026, 5, 1),
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estimatedCost = "25.50",
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residenceId = residenceId,
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)
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@Test
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fun empty_fields_isValid_false_and_toCreateRequest_null() {
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val state = TaskFormState()
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assertFalse(state.isValid)
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assertNull(state.toCreateRequest())
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}
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@Test
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fun empty_fields_errors_populated_for_all_required_fields() {
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val state = TaskFormState()
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val errors = state.errors
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assertEquals("Title is required", errors.title)
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assertEquals("Please select a priority", errors.priorityId)
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assertEquals("Please select a category", errors.categoryId)
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assertEquals("Please select a frequency", errors.frequencyId)
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assertEquals("Property is required", errors.residenceId)
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assertNull(errors.estimatedCost) // empty cost is valid
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}
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@Test
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fun all_required_fields_set_isValid_true_and_errors_clear() {
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val state = TaskFormState(validFields())
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assertTrue(state.isValid)
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val errors = state.errors
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assertNull(errors.title)
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assertNull(errors.priorityId)
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assertNull(errors.categoryId)
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assertNull(errors.frequencyId)
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assertNull(errors.residenceId)
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assertNull(errors.estimatedCost)
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}
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@Test
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fun toCreateRequest_maps_fields_correctly_when_valid() {
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val state = TaskFormState(validFields())
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val request = state.toCreateRequest()
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assertNotNull(request)
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assertEquals(10, request.residenceId)
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assertEquals("Change HVAC filter", request.title)
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assertEquals("Replace the filter in the hallway unit", request.description)
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assertEquals(2, request.categoryId)
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assertEquals(1, request.priorityId)
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assertEquals(3, request.frequencyId)
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assertEquals("2026-05-01", request.dueDate)
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assertEquals(25.50, request.estimatedCost)
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}
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@Test
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fun toCreateRequest_blank_description_maps_to_null() {
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val state = TaskFormState(validFields().copy(description = " "))
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val request = state.toCreateRequest()
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assertNotNull(request)
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assertNull(request.description)
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}
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@Test
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fun toCreateRequest_empty_estimatedCost_maps_to_null() {
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val state = TaskFormState(validFields().copy(estimatedCost = ""))
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val request = state.toCreateRequest()
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assertNotNull(request)
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assertNull(request.estimatedCost)
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}
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@Test
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fun toCreateRequest_null_dueDate_maps_to_null() {
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val state = TaskFormState(validFields().copy(dueDate = null))
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val request = state.toCreateRequest()
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assertNotNull(request)
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assertNull(request.dueDate)
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}
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@Test
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fun toCreateRequest_missing_residence_returns_null() {
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val state = TaskFormState(validFields(residenceId = null))
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assertFalse(state.isValid)
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assertNull(state.toCreateRequest())
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}
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@Test
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fun toCreateRequest_invalid_estimatedCost_returns_null() {
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val state = TaskFormState(validFields().copy(estimatedCost = "not a number"))
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assertFalse(state.isValid)
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assertNull(state.toCreateRequest())
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assertEquals(
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"Estimated cost must be a valid number",
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state.errors.estimatedCost,
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)
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}
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@Test
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fun update_recomputes_errors_and_isValid() {
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val state = TaskFormState()
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assertFalse(state.isValid)
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assertEquals("Title is required", state.errors.title)
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state.update(validFields())
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assertTrue(state.isValid)
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assertNull(state.errors.title)
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state.update(state.fields.copy(title = ""))
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assertFalse(state.isValid)
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assertEquals("Title is required", state.errors.title)
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}
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@Test
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fun validate_returns_current_errors_snapshot() {
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val state = TaskFormState()
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val snapshot = state.validate()
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assertEquals("Title is required", snapshot.title)
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assertEquals("Please select a priority", snapshot.priorityId)
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}
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@Test
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fun toUpdateRequest_maps_fields_correctly() {
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val state = TaskFormState(validFields())
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val request = state.toUpdateRequest(taskId = 42)
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assertNotNull(request)
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assertEquals("Change HVAC filter", request.title)
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assertEquals("Replace the filter in the hallway unit", request.description)
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assertEquals(2, request.categoryId)
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assertEquals(1, request.priorityId)
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assertEquals(3, request.frequencyId)
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assertEquals("2026-05-01", request.dueDate)
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assertEquals(25.50, request.estimatedCost)
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}
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@Test
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fun toUpdateRequest_when_invalid_returns_null() {
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val state = TaskFormState()
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assertNull(state.toUpdateRequest(taskId = 42))
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}
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@Test
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fun toUpdateRequest_ignores_residence_requirement() {
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// Edit mode doesn't need residenceId — the task already has one.
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val state = TaskFormState(validFields(residenceId = null))
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// State as a whole still reports invalid (residenceId missing), but
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// toUpdateRequest should still produce a request because updates do
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// not carry residenceId. This matches iOS where isEditMode bypasses
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// the residence check.
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val request = state.toUpdateRequest(taskId = 99)
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assertNotNull(request)
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assertEquals("Change HVAC filter", request.title)
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}
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@Test
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fun update_does_not_mutate_prior_fields_reference() {
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val state = TaskFormState()
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val initial = state.fields
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state.update(validFields())
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// `fields` has moved to the new value; original TaskFormFields is unchanged.
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assertEquals("", initial.title)
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assertEquals("Change HVAC filter", state.fields.title)
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}
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}
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+117
@@ -0,0 +1,117 @@
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package com.tt.honeyDue.ui.screens.task
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import kotlin.test.Test
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import kotlin.test.assertEquals
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import kotlin.test.assertNull
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/**
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* Pure-function validator tests for TaskFormValidation.
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*
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* Error strings are copied verbatim from
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* `iosApp/iosApp/Task/TaskFormView.swift::validateForm()`
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* and `iosApp/iosApp/Core/FormStates/TaskFormStates.swift`.
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*/
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class TaskFormValidationTest {
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// --- validateTitle ------------------------------------------------------
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@Test
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fun validateTitle_emptyString_returnsTitleRequired() {
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assertEquals("Title is required", TaskFormValidation.validateTitle(""))
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}
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@Test
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fun validateTitle_blankString_returnsTitleRequired() {
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assertEquals("Title is required", TaskFormValidation.validateTitle(" "))
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}
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@Test
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fun validateTitle_nonEmpty_returnsNull() {
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assertNull(TaskFormValidation.validateTitle("Change air filter"))
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}
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// --- validatePriorityId -------------------------------------------------
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@Test
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fun validatePriorityId_null_returnsPleaseSelectPriority() {
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assertEquals(
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"Please select a priority",
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TaskFormValidation.validatePriorityId(null)
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)
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}
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@Test
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fun validatePriorityId_set_returnsNull() {
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assertNull(TaskFormValidation.validatePriorityId(1))
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}
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// --- validateCategoryId -------------------------------------------------
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@Test
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fun validateCategoryId_null_returnsPleaseSelectCategory() {
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assertEquals(
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"Please select a category",
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TaskFormValidation.validateCategoryId(null)
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)
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}
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@Test
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fun validateCategoryId_set_returnsNull() {
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assertNull(TaskFormValidation.validateCategoryId(2))
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}
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// --- validateFrequencyId ------------------------------------------------
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@Test
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fun validateFrequencyId_null_returnsPleaseSelectFrequency() {
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assertEquals(
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"Please select a frequency",
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TaskFormValidation.validateFrequencyId(null)
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)
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}
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@Test
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fun validateFrequencyId_set_returnsNull() {
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assertNull(TaskFormValidation.validateFrequencyId(3))
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}
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// --- validateEstimatedCost ---------------------------------------------
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@Test
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fun validateEstimatedCost_empty_returnsNull() {
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assertNull(TaskFormValidation.validateEstimatedCost(""))
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}
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@Test
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fun validateEstimatedCost_validInteger_returnsNull() {
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assertNull(TaskFormValidation.validateEstimatedCost("100"))
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}
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@Test
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fun validateEstimatedCost_validDecimal_returnsNull() {
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assertNull(TaskFormValidation.validateEstimatedCost("49.99"))
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}
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@Test
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fun validateEstimatedCost_nonNumeric_returnsError() {
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assertEquals(
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"Estimated cost must be a valid number",
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TaskFormValidation.validateEstimatedCost("abc")
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)
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}
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// --- validateResidenceId -----------------------------------------------
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@Test
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fun validateResidenceId_null_returnsPropertyRequired() {
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assertEquals(
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"Property is required",
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TaskFormValidation.validateResidenceId(null)
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)
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}
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@Test
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fun validateResidenceId_set_returnsNull() {
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assertNull(TaskFormValidation.validateResidenceId(5))
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}
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}
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