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ChecksTest.kt
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ChecksTest.kt
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package com.hexagonkt.core
import org.junit.jupiter.api.Test
import kotlin.IllegalArgumentException
import java.time.LocalDate
import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
internal class ChecksTest {
data class DataClass(
val text: String? = "text",
val texts: List<String>? = listOf("text 1", "text 2"),
val date: LocalDate? = LocalDate.now(),
val integer: Int? = 1,
val decimal: Double? = 1.0,
val date2: LocalDate? = date?.plusDays(1),
val integer2: Int? = integer?.let { it + 1 },
val decimal2: Double? = decimal?.let { it + 1.0 },
)
@Test fun `Require methods work properly`() {
val data = DataClass()
data.requireNotBlank(DataClass::text)
data.requireNotBlanks(DataClass::texts)
data.requireLower(DataClass::date, LocalDate.now().plusDays(1))
data.requireGreater(DataClass::date, LocalDate.now().minusDays(1))
data.requireLowerOrEquals(DataClass::date, LocalDate.now().plusDays(1))
data.requireGreaterOrEquals(DataClass::date, LocalDate.now().minusDays(1))
data.requireLowerOrEquals(DataClass::date, LocalDate.now())
data.requireGreaterOrEquals(DataClass::date, LocalDate.now())
data.requireGreater(DataClass::integer, 0)
data.requireGreater(DataClass::decimal, 0.0)
data.requireLower(DataClass::integer, 2)
data.requireLower(DataClass::decimal, 2.0)
data.requireGreaterOrEquals(DataClass::integer, 0)
data.requireGreaterOrEquals(DataClass::decimal, 0.0)
data.requireLowerOrEquals(DataClass::integer, 2)
data.requireLowerOrEquals(DataClass::decimal, 2.0)
data.requireGreaterOrEquals(DataClass::integer, 1)
data.requireGreaterOrEquals(DataClass::decimal, 1.0)
data.requireLowerOrEquals(DataClass::integer, 1)
data.requireLowerOrEquals(DataClass::decimal, 1.0)
data.requireGreaterOrEquals(DataClass::integer, DataClass::integer)
data.requireGreaterOrEquals(DataClass::decimal, DataClass::decimal)
data.requireLowerOrEquals(DataClass::integer, DataClass::integer)
data.requireLowerOrEquals(DataClass::decimal, DataClass::decimal)
data.requireLower(DataClass::integer, DataClass::integer2)
data.requireLower(DataClass::decimal, DataClass::decimal2)
data.requireGreater(DataClass::integer2, DataClass::integer)
data.requireGreater(DataClass::decimal2, DataClass::decimal)
}
@Test fun `Require methods throw exceptions for incorrect data`() {
val data = DataClass(
text = " ",
texts = listOf("text", " "),
integer = 0,
decimal = 0.0,
)
val today = LocalDate.now()
val yesterday = today.minusDays(1)
fail("'text' cannot be blank") { data.requireNotBlank(DataClass::text) }
fail("'texts' cannot contain blanks") { data.requireNotBlanks(DataClass::texts) }
fail("'date' must be lower than $today: $today") {
data.requireLower(DataClass::date, today)
}
fail("'date' must be equals or lower than $yesterday: $today") {
data.requireLowerOrEquals(DataClass::date, yesterday)
}
fail("'integer' must be greater than 0: 0") {
data.requireGreater(DataClass::integer, 0)
}
fail("'decimal' must be greater than 0.0: 0.0") {
data.requireGreater(DataClass::decimal, 0.0)
}
fail("'integer' must be equals or greater than 1: 0") {
data.requireGreaterOrEquals(DataClass::integer, 1)
}
fail("'decimal' must be equals or greater than 1.0: 0.0") {
data.requireGreaterOrEquals(DataClass::decimal, 1.0)
}
}
@Test fun `Require methods work properly with 'null' data`() {
val data = DataClass(null, null, null, null, null)
data.requireNotBlank(DataClass::text)
data.requireNotBlanks(DataClass::texts)
data.requireLower(DataClass::date, LocalDate.now().plusDays(1))
data.requireGreater(DataClass::date, LocalDate.now().minusDays(1))
data.requireLowerOrEquals(DataClass::date, LocalDate.now().plusDays(1))
data.requireGreaterOrEquals(DataClass::date, LocalDate.now().minusDays(1))
data.requireLowerOrEquals(DataClass::date, LocalDate.now())
data.requireGreaterOrEquals(DataClass::date, LocalDate.now())
data.requireGreater(DataClass::integer, 0)
data.requireGreater(DataClass::decimal, 0.0)
data.requireLower(DataClass::integer, 2)
data.requireLower(DataClass::decimal, 2.0)
data.requireGreaterOrEquals(DataClass::integer, 0)
data.requireGreaterOrEquals(DataClass::decimal, 0.0)
data.requireLowerOrEquals(DataClass::integer, 2)
data.requireLowerOrEquals(DataClass::decimal, 2.0)
data.requireGreaterOrEquals(DataClass::integer, 1)
data.requireGreaterOrEquals(DataClass::decimal, 1.0)
data.requireLowerOrEquals(DataClass::integer, 1)
data.requireLowerOrEquals(DataClass::decimal, 1.0)
data.requireGreaterOrEquals(DataClass::integer, DataClass::integer)
data.requireGreaterOrEquals(DataClass::decimal, DataClass::decimal)
data.requireLowerOrEquals(DataClass::integer, DataClass::integer)
data.requireLowerOrEquals(DataClass::decimal, DataClass::decimal)
data.requireLower(DataClass::integer, DataClass::integer2)
data.requireLower(DataClass::decimal, DataClass::decimal2)
data.requireGreater(DataClass::integer2, DataClass::integer)
data.requireGreater(DataClass::decimal2, DataClass::decimal)
}
@Test fun `Ensure fails if collection size is larger`() {
assertFailsWith<IllegalStateException> {
listOf(1, 2, 3).checkSize(1..2)
}
}
@Test fun `Ensure fails if collection size is smaller`() {
assertFailsWith<IllegalStateException> {
listOf(1, 2, 3).checkSize(4..5)
}
}
@Test fun `Ensure returns the collection if size is correct`() {
val list = listOf(1, 2, 3)
assert(list.checkSize(0..3) == list)
assert(list.checkSize(1..3) == list)
assert(list.checkSize(2..3) == list)
assert(list.checkSize(3..3) == list)
assert(list.checkSize(0..4) == list)
}
private fun fail(message: String, block: () -> Unit) {
val e = assertFailsWith<IllegalArgumentException>(block = block)
assertEquals(message, e.message)
}
@Test fun `Check multiple errors`() {
val e = assertFailsWith<MultipleException> {
check(
"Test multiple exceptions",
{ require(false) { "Sample error" } },
{ println("Good block") },
{ error("Bad state") },
)
}
assertEquals("Test multiple exceptions", e.message)
assertEquals(2, e.causes.size)
assertEquals("Sample error", e.causes[0].message)
assertEquals("Bad state", e.causes[1].message)
check(
"No exception thrown",
{ println("Good block") },
{ println("Shouldn't throw an exception") },
)
}
}