Add support for weaver-test

build.sbt

@@ -7,7 +7,7 @@ import complete.DefaultParsers._
 
 val scala212 = "2.12.16"
 val scala213 = "2.13.8"
-val scala3 = "3.1.3"
+val scala3 = "3.2.2"
 
 val scalaIdeaVersion = scala3 // the version for which to import sources into intellij
 
@@ -96,7 +96,7 @@ lazy val core = (projectMatrix in file("core"))
   )
   .jvmPlatform(
     scalaVersions = List(scala212, scala213, scala3),
-      settings = enableMimaSettings
+    settings = enableMimaSettings
   )
   .jsPlatform(
     scalaVersions = List(scala212, scala213, scala3),
@@ -209,6 +209,23 @@ lazy val munit = (projectMatrix in file("munit"))
     settings = commonSettings ++ Seq(scalaJSLinkerConfig ~= { _.withModuleKind(ModuleKind.CommonJSModule) })
   )
 
+lazy val weaver = (projectMatrix in file("weaver"))
+  .settings(commonSettings)
+  .settings(
+    name := "diffx-weaver",
+    libraryDependencies ++= Seq(
+      "com.disneystreaming" %%% "weaver-cats" % "0.8.3"
+    ),
+    testFrameworks += new TestFramework("weaver.framework.CatsEffect")
+  )
+  .dependsOn(core)
+  .jvmPlatform(
+    scalaVersions = List(scala212, scala213, scala3)
+  )
+  .jsPlatform(
+    scalaVersions = List(scala212, scala213, scala3)
+  )
+
 lazy val tagging = (projectMatrix in file("tagging"))
   .settings(commonSettings)
   .settings(
@@ -280,7 +297,7 @@ lazy val docs = (projectMatrix in file("generated-docs")) // important: it must
     ),
     mdocOut := file("generated-docs/out")
   )
-  .dependsOn(core, scalatestShould, specs2, utest, refined, tagging, cats, munit)
+  .dependsOn(core, scalatestShould, specs2, utest, refined, tagging, cats, munit, weaver)
   .jvmPlatform(scalaVersions = List(scala213))
 
 val testJVM = taskKey[Unit]("Test JVM projects")
@@ -289,7 +306,7 @@ val testJS = taskKey[Unit]("Test JS projects")
 val allAggregates =
   core.projectRefs ++ scalatestMust.projectRefs ++ scalatestShould.projectRefs ++ scalatestLegacy.projectRefs ++
     specs2.projectRefs ++ utest.projectRefs ++ cats.projectRefs ++
-    refined.projectRefs ++ tagging.projectRefs ++ docs.projectRefs ++ munit.projectRefs
+    refined.projectRefs ++ tagging.projectRefs ++ docs.projectRefs ++ munit.projectRefs ++ weaver.projectRefs
 
 def filterProject(p: String => Boolean) =
   ScopeFilter(inProjects(allAggregates.filter(pr => p(display(pr.project))): _*))

docs-sources/test-frameworks/weaver.md

@@ -0,0 +1,53 @@
+# weaver
+
+To use with weaver, add the following dependency:
+
+## sbt
+
+```scala
+"com.softwaremill.weaver" %% "diffx-weaver" % "@VERSION@" % Test
+```
+
+## mill
+
+```scala
+ivy"com.softwaremill.diffx::diffx-weaver::@VERSION@"
+```
+
+## Usage
+
+Then, mixin `DiffxExpectations` trait or add `import com.softwaremill.diffx.weaver.DiffxExpectations._` to your test code.
+To assert using diffx use `expectEqual` as follows:
+
+```scala mdoc:compile-only
+import com.softwaremill.diffx.weaver.DiffxExpectations._
+import com.softwaremill.diffx.generic.auto._
+
+sealed trait Parent
+case class Bar(s: String, i: Int) extends Parent
+case class Foo(bar: Bar, b: List[Int], parent: Option[Parent]) extends Parent
+
+val right: Foo = Foo(
+    Bar("asdf", 5),
+    List(123, 1234),
+    Some(Bar("asdf", 5))
+)
+
+val left: Foo = Foo(
+    Bar("asdf", 66),
+    List(1234),
+    Some(right)
+)
+
+expectEqual(left, right)
+```
+
+## Versions matrix
+
+Below table shows past Diffx releases with the corresponding weaver version they were build with.
+For newer versions checkout the release changelog.
+
+| Diffx | weaver |
+|-------|:------:|
+| 0.8.4 | 0.8.3  |
+

generated-docs/out/test-frameworks/weaver.md

@@ -0,0 +1,53 @@
+# weaver
+
+To use with weaver, add the following dependency:
+
+## sbt
+
+```scala
+"com.softwaremill.weaver" %% "diffx-weaver" % "0.8.3" % Test
+```
+
+## mill
+
+```scala
+ivy"com.softwaremill.diffx::diffx-weaver::0.8.3"
+```
+
+## Usage
+
+Then, mixin `DiffxExpectations` trait or add `import com.softwaremill.diffx.weaver.DiffxExpectations._` to your test code.
+To assert using diffx use `expectEqual` as follows:
+
+```scala
+import com.softwaremill.diffx.weaver.DiffxExpectations._
+import com.softwaremill.diffx.generic.auto._
+
+sealed trait Parent
+case class Bar(s: String, i: Int) extends Parent
+case class Foo(bar: Bar, b: List[Int], parent: Option[Parent]) extends Parent
+
+val right: Foo = Foo(
+    Bar("asdf", 5),
+    List(123, 1234),
+    Some(Bar("asdf", 5))
+)
+
+val left: Foo = Foo(
+    Bar("asdf", 66),
+    List(1234),
+    Some(right)
+)
+
+expectEqual(left, right)
+```
+
+## Versions matrix
+
+Below table shows past Diffx releases with the corresponding weaver version they were build with.
+For newer versions checkout the release changelog.
+
+| Diffx | weaver |
+|-------|:------:|
+| 0.8.4 | 0.8.3  |
+

generated-docs/out/usage/ignoring.md

@@ -44,7 +44,7 @@ implicit val conf: DiffConfiguration = DiffConfiguration(makeIgnored =
 )
 // conf: DiffConfiguration = DiffConfiguration(makeIgnored = <function1>)
 val d = Diff[Person].ignore(_.age)
-// d: Diff[Person] = com.softwaremill.diffx.Diff$$anon$1@3c4f66a2
+// d: Diff[Person] = com.softwaremill.diffx.Diff$$anon$1@2b53172e
 d(Person("bob", 25), Person("bob", 30)) 
 // res2: DiffResult = DiffResultObject(
 //   name = "Person",

generated-docs/out/usage/modifying.md

@@ -42,7 +42,7 @@ with the `Diff.ignore` instance.
 ## collection support
 
 Specify how objects within particular collection within particular diff instance should be matched.
-We distinguish free main types of collections:
+We distinguish three main types of collections:
 - seqLike collections where elements are indexed collections
 - setLike collections where elements aren't indexed
 - mapLike collections where elements(values) are indexed by some keys
@@ -61,4 +61,4 @@ implicit val diffOrg: Diff[Organization] = Diff.summon[Organization]
         // mapLike methods:
         .modify(_.peopleMap).matchByValue(_.age)
         .modify(_.peopleMap).matchByKey(_.weight)
-```
+```

generated-docs/out/usage/output.md

@@ -47,13 +47,13 @@ By default, it is set to an identical function.
 ```scala
 implicit val showConfig = ShowConfig.default.copy(transformer = DiffResultTransformer.skipIdentical)
 // showConfig: ShowConfig = ShowConfig(
-//   left = com.softwaremill.diffx.ShowConfig$$$Lambda$10463/0x0000000802afe890@2988c7f6,
-//   right = com.softwaremill.diffx.ShowConfig$$$Lambda$10463/0x0000000802afe890@5f94affc,
-//   missing = com.softwaremill.diffx.ShowConfig$$$Lambda$10463/0x0000000802afe890@2b1e794e,
-//   additional = com.softwaremill.diffx.ShowConfig$$$Lambda$10463/0x0000000802afe890@65ca52ad,
-//   default = com.softwaremill.diffx.ShowConfig$$$Lambda$10466/0x0000000802aff058@a929e95,
-//   arrow = com.softwaremill.diffx.ShowConfig$$$Lambda$10463/0x0000000802afe890@70032b74,
-//   transformer = com.softwaremill.diffx.DiffResultTransformer$$$Lambda$10455/0x0000000802afc958@280fe833
+//   left = com.softwaremill.diffx.ShowConfig$$$Lambda$12994/0x0000000802fcd840@44247db5,
+//   right = com.softwaremill.diffx.ShowConfig$$$Lambda$12994/0x0000000802fcd840@66c2460c,
+//   missing = com.softwaremill.diffx.ShowConfig$$$Lambda$12994/0x0000000802fcd840@4f023172,
+//   additional = com.softwaremill.diffx.ShowConfig$$$Lambda$12994/0x0000000802fcd840@3b0ad140,
+//   default = com.softwaremill.diffx.ShowConfig$$$Lambda$12997/0x0000000802fca040@5c24da41,
+//   arrow = com.softwaremill.diffx.ShowConfig$$$Lambda$12994/0x0000000802fcd840@28a205ef,
+//   transformer = com.softwaremill.diffx.DiffResultTransformer$$$Lambda$12986/0x0000000802d76840@76752828
 // )
 case class Person(name:String, age:Int)
 

weaver/src/main/scala/com/softwaremill/diffx/weaver/DiffxExpectations.scala

@@ -0,0 +1,17 @@
+package com.softwaremill.diffx.weaver
+
+import com.softwaremill.diffx.{Diff, ShowConfig}
+import weaver.Expectations.Helpers.{failure, success}
+import weaver.{Expectations, SourceLocation}
+
+trait DiffxExpectations {
+  def expectEqual[T: Diff](t1: T, t2: T)(implicit c: ShowConfig, loc: SourceLocation): Expectations = {
+    val result = Diff.compare(t1, t2)
+    if (result.isIdentical)
+      success
+    else
+      failure(result.show())(loc)
+  }
+}
+
+object DiffxExpectations extends DiffxExpectations

weaver/src/test/scala/com/softwaremill/diffx/weaver/DiffxExpectationsTest.scala

@@ -0,0 +1,22 @@
+package com.softwaremill.diffx.weaver
+
+import cats.data.Validated
+import com.softwaremill.diffx.generic.AutoDerivation
+import weaver.FunSuite
+
+object DiffxExpectationsTest extends FunSuite with DiffxExpectations with AutoDerivation {
+  test("expectEqual should fail when there are differences") {
+    val n = Person("n1", 11)
+    expectEqual(n, Person("n2", 12)).run match {
+      case Validated.Valid(_)   => failure(s"Expected a failure but succeeded")
+      case Validated.Invalid(_) => success
+    }
+  }
+
+  test("expectEqual should succeed when there are no differences") {
+    val n = Person("n1", 11)
+    expectEqual(n, Person("n1", 11))
+  }
+}
+
+case class Person(name: String, age: Int)