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/*
* Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
*/
package kotlinx.coroutines.tools
import java.io.*
import kotlin.test.*
private val OVERWRITE_EXPECTED_OUTPUT =
System.getProperty("overwrite.output")?.toBoolean() ?: false // use -Doverwrite.output=true
fun List<ClassBinarySignature>.dumpAndCompareWith(to: File) {
if (!to.exists()) {
to.parentFile?.mkdirs()
to.bufferedWriter().use { dump(to = it) }
fail("Expected data file did not exist. Generated: $to")
} else {
val actual = dump(to = StringBuilder())
assertEqualsToFile(to, actual)
}
}
private fun assertEqualsToFile(to: File, actual: CharSequence) {
val actualText = actual.trimTrailingWhitespacesAndAddNewlineAtEOF()
val expectedText = to.readText().trimTrailingWhitespacesAndAddNewlineAtEOF()
if (expectedText == actualText) return // Ok
// Difference
if (OVERWRITE_EXPECTED_OUTPUT) {
to.writeText(actualText)
println("Generated: $to")
return // make test pass when overwriting output
}
// Fail on difference
assertEquals(
expectedText,
actualText,
"Actual data differs from file content: ${to.name}\nTo overwrite the expected API rerun with -Doverwrite.output=true parameter\n"
)
}
private fun CharSequence.trimTrailingWhitespacesAndAddNewlineAtEOF(): String =
this.lineSequence().map { it.trimEnd() }.joinToString(separator = "\n").let {
if (it.endsWith("\n")) it else it + "\n"
}
private val UPPER_CASE_CHARS = Regex("[A-Z]+")
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