X-Git-Url: https://git.pterodactylus.net/?p=Sone.git;a=blobdiff_plain;f=src%2Ftest%2Fkotlin%2Fnet%2Fpterodactylus%2Fsone%2Ftest%2FOneByOneMatcher.kt;fp=src%2Ftest%2Fkotlin%2Fnet%2Fpterodactylus%2Fsone%2Ftest%2FOneByOneMatcher.kt;h=f0ccecaa79d621cc9720187d2a9cbbc151db92bc;hp=0000000000000000000000000000000000000000;hb=eb32457356fac09e16ec98394c1b5d48f9dfba84;hpb=ec655d61682a70063c1cf540fe3e41613aaf71a5

diff --git a/src/test/kotlin/net/pterodactylus/sone/test/OneByOneMatcher.kt b/src/test/kotlin/net/pterodactylus/sone/test/OneByOneMatcher.kt
new file mode 100644
index 0000000..f0cceca
--- /dev/null
+++ b/src/test/kotlin/net/pterodactylus/sone/test/OneByOneMatcher.kt
@@ -0,0 +1,33 @@
+package net.pterodactylus.sone.test
+
+import org.hamcrest.Description
+import org.hamcrest.TypeSafeDiagnosingMatcher
+
+class OneByOneMatcher<A> : TypeSafeDiagnosingMatcher<A>() {
+	private data class Matcher<in A, out V>(val expected: V, val actual: (A) -> V, val description: String)
+
+	private val matchers = mutableListOf<Matcher<A, *>>()
+
+	fun <V> expect(description: String, expected: V, actual: (A) -> V) {
+		matchers += Matcher<A, V>(expected, actual, description)
+	}
+
+	override fun describeTo(description: Description) {
+		matchers.forEachIndexed { index, matcher ->
+			if (index > 0) {
+				description.appendText(", ")
+			}
+			description.appendText("${matcher.description} is ").appendValue(matcher.expected)
+		}
+	}
+
+	override fun matchesSafely(item: A, mismatchDescription: Description) =
+			matchers.all {
+				if (it.expected != it.actual(item)) {
+					mismatchDescription.appendText("${it.description} is ").appendValue(it.actual(item))
+					false
+				} else {
+					true
+				}
+			}
+}