/
ArrayPrimitiveSpec.kt
266 lines (227 loc) · 8.73 KB
/
ArrayPrimitiveSpec.kt
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package io.gitlab.arturbosch.detekt.rules.performance
import io.gitlab.arturbosch.detekt.rules.KotlinCoreEnvironmentTest
import io.gitlab.arturbosch.detekt.test.compileAndLint
import io.gitlab.arturbosch.detekt.test.compileAndLintWithContext
import org.assertj.core.api.Assertions.assertThat
import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
import org.junit.jupiter.api.DisplayName
import org.junit.jupiter.api.Nested
import org.junit.jupiter.api.Test
@KotlinCoreEnvironmentTest
class ArrayPrimitiveSpec(val env: KotlinCoreEnvironment) {
val subject = ArrayPrimitive()
@Nested
inner class `one function parameter` {
@Test
fun `is an array of primitive type`() {
val code = "fun function(array: Array<Int>) {}"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
fun `is not an array`() {
val code = "fun function(i: Int) {}"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
@Test
fun `is a specialized array`() {
val code = "fun function(array: ByteArray) {}"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
@Test
fun `is a star-projected array`() {
val code = "fun function(array: Array<*>) {}"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
@Test
fun `is not present`() {
val code = "fun function() {}"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
@Test
fun `is an array of a non-primitive type`() {
val code = "fun function(array: Array<String>) {}"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
@Test
fun `is an array of an array of a primitive type`() {
val code = "fun function(array: Array<Array<Int>>) {}"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
fun `is a dictionary with an array of a primitive type as key`() {
val code = "fun function(dict: java.util.Dictionary<Int, Array<Int>>) {}"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
}
@Nested
inner class `multiple function parameters` {
@Test
@DisplayName("one is Array<Primitive> and the other is not")
fun oneArrayPrimitive() {
val code = "fun function(array: Array<Int>, array2: IntArray) {}"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
fun `both are arrays of primitive types`() {
val code = "fun function(array: Array<Int>, array2: Array<Double>) {}"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(2)
}
}
@Nested
inner class `return type` {
@Test
@DisplayName("is Array<Primitive>")
fun isArrayPrimitive() {
val code = "fun returningFunction(): Array<Float> { return emptyArray() }"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(2)
}
@Test
fun `is not an array`() {
val code = "fun returningFunction(): Int { return 1 }"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
@Test
fun `is a specialized array`() {
val code = "fun returningFunction(): CharArray { return CharArray(0) }"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
@Test
fun `is a star-projected array`() {
val code = "fun returningFunction(): Array<*> { return emptyArray<Any>() }"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
@Test
fun `is not explicitly set`() {
val code = "fun returningFunction() {}"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
}
@Nested
inner class `variable type` {
@Test
@DisplayName("is Array<Primitive>")
fun isArrayPrimitive() {
val code = "val foo: Array<Int>? = null"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
}
@Nested
inner class `receiver type` {
@Test
@DisplayName("is Array<Primitive>")
fun isArrayPrimitive() {
val code = "fun Array<Boolean>.foo() { println(this) }"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
}
@Nested
inner class `arrayOf` {
@Test
fun `is arrayOf(Char)`() {
val code = "fun foo(x: Char) = arrayOf(x)"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
fun `is arrayOf(Byte)`() {
val code = "fun foo(x: Byte) = arrayOf(x)"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
fun `is arrayOf(Short)`() {
val code = "fun foo(x: Short) = arrayOf(x)"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
fun `is arrayOf(Int)`() {
val code = "fun foo(x: Int) = arrayOf(x)"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
fun `is arrayOf(Long)`() {
val code = "fun foo(x: Long) = arrayOf(x)"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
fun `is arrayOf(Float)`() {
val code = "fun foo(x: Float) = arrayOf(x)"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
fun `is arrayOf(Double)`() {
val code = "fun foo(x: Double) = arrayOf(x)"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
fun `is arrayOf(Boolean)`() {
val code = "fun foo(x: Boolean) = arrayOf(x)"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
fun `is arrayOf(String)`() {
val code = "fun foo(x: String) = arrayOf(x)"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
@Test
fun `is intArrayOf()`() {
val code = "fun test(x: Int) = intArrayOf(x)"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
}
@Nested
inner class `emptyArray` {
@Test
@DisplayName("is emptyArray<Char>()")
fun isEmptyArrayChar() {
val code = "val a = emptyArray<Char>()"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
@DisplayName("is emptyArray<Byte>()")
fun isEmptyArrayByte() {
val code = "val a = emptyArray<Byte>()"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
@DisplayName("is emptyArray<Short>()")
fun isEmptyArrayShort() {
val code = "val a = emptyArray<Short>()"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
@DisplayName("is emptyArray<Int>()")
fun isEmptyArrayInt() {
val code = "val a = emptyArray<Int>()"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
@DisplayName("is emptyArray<Long>()")
fun isEmptyArrayLong() {
val code = "val a = emptyArray<Long>()"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
@DisplayName("is emptyArray<Float>()")
fun isEmptyArrayFloat() {
val code = "val a = emptyArray<Float>()"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
@DisplayName("is emptyArray<Double>()")
fun isEmptyArrayDouble() {
val code = "val a = emptyArray<Double>()"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
@DisplayName("is emptyArray<Boolean>()")
fun isEmptyArrayBoolean() {
val code = "val a = emptyArray<Boolean>()"
assertThat(subject.compileAndLintWithContext(env, code)).hasSize(1)
}
@Test
@DisplayName("is emptyArray<String>()")
fun isEmptyArrayString() {
val code = "val a = emptyArray<String>()"
assertThat(subject.compileAndLintWithContext(env, code)).isEmpty()
}
}
}