Selfie

build.gradle.kts

@@ -17,6 +17,12 @@ dependencies {
     implementation(platform("org.jetbrains.kotlin:kotlin-bom"))
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
 
+    // com.diffplug.selfie:selfie
+
+    testImplementation("com.diffplug.selfie:selfie-runner-junit5:1.1.0")
+
+    // io.github.origin-energy:java-snapshot-testing
+
     testImplementation("io.github.origin-energy:java-snapshot-testing-junit5:$javaSnapshotTestingVersion")
     testImplementation("io.github.origin-energy:java-snapshot-testing-plugin-jackson:$javaSnapshotTestingVersion")
     testImplementation("org.slf4j:slf4j-simple:2.0.12")
@@ -26,6 +32,8 @@ dependencies {
     testImplementation("com.fasterxml.jackson.core:jackson-databind")
     testImplementation("com.fasterxml.jackson.datatype:jackson-datatype-jdk8")
     testImplementation("com.fasterxml.jackson.datatype:jackson-datatype-jsr310")
+
+    // common
 
     testImplementation(platform("org.junit:junit-bom:5.10.2"))
     testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine")

src/test/kotlin/org/rogervinas/MyImplTest.kt

@@ -1,21 +1,19 @@
 package org.rogervinas
 
-import au.com.origin.snapshots.Expect
-import au.com.origin.snapshots.junit5.SnapshotExtension
+import com.diffplug.selfie.Camera
+import com.diffplug.selfie.Selfie
+import com.diffplug.selfie.Snapshot
+import com.fasterxml.jackson.databind.ObjectMapper
 import org.junit.jupiter.api.Test
-import org.junit.jupiter.api.extension.ExtendWith
 import org.junit.jupiter.params.ParameterizedTest
 import org.junit.jupiter.params.provider.ValueSource
 import java.time.Clock
 import java.time.Instant
 import java.time.ZoneId
 import kotlin.random.Random
 
-@ExtendWith(SnapshotExtension::class)
-internal class MyImplTest {
-
-    private lateinit var expect: Expect
 
+internal class MyImplTest {
     private val myImpl = MyImpl(
         Random(seed=1234),
         Clock.fixed(Instant.parse("2022-10-01T10:30:00.000Z"), ZoneId.of("UTC"))
@@ -25,12 +23,21 @@ internal class MyImplTest {
     @ValueSource(ints = [1, 2, 3, 4, 5, 6, 7, 8, 9])
     fun `should do something`(input: Int) {
         val myResult = myImpl.doSomething(input)
-        expect.serializer("json").scenario("$input").toMatchSnapshot(myResult)
+        expectSelfie(myResult).toMatchDisk("$input")
     }
 
     @Test
     fun `should do something more`() {
         val myResult = myImpl.doSomethingMore()
-        expect.serializer("json").toMatchSnapshot(myResult)
+        expectSelfie(myResult).toMatchDisk()
+    }
+
+    private fun expectSelfie(actual: MyResult): Selfie.DiskSelfie {
+        return Selfie.expectSelfie(actual, JSON_CAMERA)
+    }
+    private val JSON_CAMERA = Camera<Any> { actual ->
+        val mapper = ObjectMapper()
+        mapper.findAndRegisterModules()
+        Snapshot.of(mapper.writerWithDefaultPrettyPrinter().writeValueAsString(actual))
     }
 }

src/test/kotlin/org/rogervinas/MyImplTest.ss

@@ -0,0 +1,71 @@
+╔═ should do something/1 ═╗
+{
+  "oneInteger" : 1,
+  "oneDouble" : 3.7,
+  "oneString" : "a",
+  "oneDateTime" : [ 2022, 5, 3, 13, 46, 18 ]
+}
+╔═ should do something/2 ═╗
+{
+  "oneInteger" : 2,
+  "oneDouble" : 7.4,
+  "oneString" : "aa",
+  "oneDateTime" : [ 2022, 5, 3, 13, 46, 18 ]
+}
+╔═ should do something/3 ═╗
+{
+  "oneInteger" : 3,
+  "oneDouble" : 11.100000000000001,
+  "oneString" : "aaa",
+  "oneDateTime" : [ 2022, 5, 3, 13, 46, 18 ]
+}
+╔═ should do something/4 ═╗
+{
+  "oneInteger" : 4,
+  "oneDouble" : 14.8,
+  "oneString" : "aaaa",
+  "oneDateTime" : [ 2022, 5, 3, 13, 46, 18 ]
+}
+╔═ should do something/5 ═╗
+{
+  "oneInteger" : 5,
+  "oneDouble" : 18.5,
+  "oneString" : "aaaaa",
+  "oneDateTime" : [ 2022, 5, 3, 13, 46, 18 ]
+}
+╔═ should do something/6 ═╗
+{
+  "oneInteger" : 6,
+  "oneDouble" : 22.200000000000003,
+  "oneString" : "aaaaaa",
+  "oneDateTime" : [ 2022, 5, 3, 13, 46, 18 ]
+}
+╔═ should do something/7 ═╗
+{
+  "oneInteger" : 7,
+  "oneDouble" : 25.900000000000002,
+  "oneString" : "aaaaaaa",
+  "oneDateTime" : [ 2022, 5, 3, 13, 46, 18 ]
+}
+╔═ should do something/8 ═╗
+{
+  "oneInteger" : 8,
+  "oneDouble" : 29.6,
+  "oneString" : "aaaaaaaa",
+  "oneDateTime" : [ 2022, 5, 3, 13, 46, 18 ]
+}
+╔═ should do something/9 ═╗
+{
+  "oneInteger" : 9,
+  "oneDouble" : 33.300000000000004,
+  "oneString" : "aaaaaaaaa",
+  "oneDateTime" : [ 2022, 5, 3, 13, 46, 18 ]
+}
+╔═ should do something more ═╗
+{
+  "oneInteger" : 345130239,
+  "oneDouble" : 0.6887620080485805,
+  "oneString" : "aaaaaaaaa",
+  "oneDateTime" : [ 2022, 10, 1, 10, 30 ]
+}
+╔═ [end of file] ═╗