69 lines
2.2 KiB
Kotlin
69 lines
2.2 KiB
Kotlin
package com.github.michaelbull.result
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import com.natpryce.hamkrest.assertion.assertThat
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import com.natpryce.hamkrest.equalTo
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import org.junit.jupiter.api.Assertions.assertThrows
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import org.junit.jupiter.api.Test
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internal class UnwrapTest {
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@Test
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internal fun `unwrap should return the result value if ok`() {
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val value = Ok(5000).unwrap()
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assertThat(value, equalTo(5000))
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}
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@Test
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internal fun `unwrap should throw an UnwrapException if not ok`() {
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val throwable = assertThrows(UnwrapException::class.java, {
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Error(5000).unwrap()
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})
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assertThat(throwable.message, equalTo("called Result.wrap on an Error value 5000"))
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}
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@Test
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internal fun `expect should return the result value if ok`() {
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val value = Ok(1994).expect("the year should be")
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assertThat(value, equalTo(1994))
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}
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@Test
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internal fun `expect should throw an UnwrapException with a specified message if not ok`() {
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val throwable = assertThrows(UnwrapException::class.java, {
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Error(1994).expect("the year should be")
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})
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assertThat(throwable.message, equalTo("the year should be 1994"))
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}
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@Test
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internal fun `unwrapError should throw an UnwrapException if ok`() {
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val throwable = assertThrows(UnwrapException::class.java, {
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Ok("example").unwrapError()
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})
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assertThat(throwable.message, equalTo("called Result.unwrapError on an Ok value example"))
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}
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@Test
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internal fun `unwrapError should return the result error if not ok`() {
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val error = Error("example").unwrapError()
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assertThat(error, equalTo("example"))
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}
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@Test
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internal fun `expectError should throw an UnwrapException with a specified message if ok`() {
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val throwable = assertThrows(UnwrapException::class.java, {
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Ok(2010).expectError("the year should be")
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})
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assertThat(throwable.message, equalTo("the year should be 2010"))
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}
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@Test
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internal fun `expectError should return the result error if not ok`() {
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val error = Error(2010).expectError("the year should be")
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assertThat(error, equalTo(2010))
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}
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}
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