test(abg): move expected code for JAR to file (#1331)

Part of #1318.

Thanks to this, it will also be tested if it's compilable. We can move
it because, unlikely to the test that checks the script-specific
generation, the file generated here is not meant to be used in a script.

Author: krzema12

action-binding-generator/src/test/kotlin/io/github/typesafegithub/workflows/actionbindinggenerator/bindingsfromunittests/ActionForGeneratedJar.kt

@@ -0,0 +1,90 @@
+// This file was generated using action-binding-generator. Don't change it by hand, otherwise your
+// changes will be overwritten with the next binding code regeneration.
+// See https://github.com/typesafegithub/github-workflows-kt for more info.
+@file:Suppress(
+    "DataClassPrivateConstructor",
+    "UNUSED_PARAMETER",
+    "DEPRECATION",
+)
+
+package io.github.typesafegithub.workflows.actions.johnsmith
+
+import io.github.typesafegithub.workflows.domain.actions.Action
+import io.github.typesafegithub.workflows.domain.actions.RegularAction
+import java.util.LinkedHashMap
+import kotlin.Deprecated
+import kotlin.String
+import kotlin.Suppress
+import kotlin.Unit
+import kotlin.collections.Map
+import kotlin.collections.toList
+import kotlin.collections.toTypedArray
+
+/**
+ * Action: Do something cool
+ * and describe it in multiple lines
+ *
+ * This is a test description that should be put in the KDoc comment for a class
+ *
+ * [Action on GitHub](https://github.com/john-smith/action-for-generated-jar)
+ *
+ * @param fooBar Short description
+ * @param bazGoo Just another input
+ * with multiline description
+ * @param _customInputs Type-unsafe map where you can put any inputs that are not yet supported by
+ * the binding
+ * @param _customVersion Allows overriding action's version, for example to use a specific minor
+ * version, or a newer version that the binding doesn't yet know about
+ */
+public data class ActionForGeneratedJar private constructor(
+    /**
+     * Short description
+     */
+    public val fooBar: String,
+    /**
+     * Just another input
+     * with multiline description
+     */
+    @Deprecated("this is deprecated")
+    public val bazGoo: ActionForGeneratedJar.BazGoo,
+    /**
+     * Type-unsafe map where you can put any inputs that are not yet supported by the binding
+     */
+    public val _customInputs: Map<String, String> = mapOf(),
+    /**
+     * Allows overriding action's version, for example to use a specific minor version, or a newer
+     * version that the binding doesn't yet know about
+     */
+    public val _customVersion: String? = null,
+) : RegularAction<Action.Outputs>("john-smith", "action-for-generated-jar", _customVersion ?: "v3")
+        {
+    public constructor(
+        vararg pleaseUseNamedArguments: Unit,
+        fooBar: String,
+        bazGoo: ActionForGeneratedJar.BazGoo,
+        _customInputs: Map<String, String> = mapOf(),
+        _customVersion: String? = null,
+    ) : this(fooBar=fooBar, bazGoo=bazGoo, _customInputs=_customInputs,
+            _customVersion=_customVersion)
+
+    @Suppress("SpreadOperator")
+    override fun toYamlArguments(): LinkedHashMap<String, String> = linkedMapOf(
+        *listOfNotNull(
+            "foo-bar" to fooBar,
+            "baz-goo" to bazGoo.stringValue,
+            *_customInputs.toList().toTypedArray(),
+        ).toTypedArray()
+    )
+
+    override fun buildOutputObject(stepId: String): Action.Outputs = Outputs(stepId)
+
+    public sealed class BazGoo(
+        public val stringValue: String,
+    ) {
+        public object HelloWorld : ActionForGeneratedJar.BazGoo("helloworld")
+
+        public class Custom(
+            customStringValue: String,
+        ) : ActionForGeneratedJar.BazGoo(customStringValue)
+    }
+}

action-binding-generator/src/test/kotlin/io/github/typesafegithub/workflows/actionbindinggenerator/generation/GenerationTest.kt

@@ -582,100 +582,6 @@ class GenerationTest : FunSpec({
             )
 
         // then
-        //language=kotlin
-        binding.kotlinCode shouldBe
-            """
-            // This file was generated using action-binding-generator. Don't change it by hand, otherwise your
-            // changes will be overwritten with the next binding code regeneration.
-            // See https://github.com/typesafegithub/github-workflows-kt for more info.
-            @file:Suppress(
-                "DataClassPrivateConstructor",
-                "UNUSED_PARAMETER",
-                "DEPRECATION",
-            )
-
-            package io.github.typesafegithub.workflows.actions.johnsmith
-
-            import io.github.typesafegithub.workflows.domain.actions.Action
-            import io.github.typesafegithub.workflows.domain.actions.RegularAction
-            import java.util.LinkedHashMap
-            import kotlin.Deprecated
-            import kotlin.String
-            import kotlin.Suppress
-            import kotlin.Unit
-            import kotlin.collections.Map
-            import kotlin.collections.toList
-            import kotlin.collections.toTypedArray
-
-            /**
-             * Action: Do something cool
-             * and describe it in multiple lines
-             *
-             * This is a test description that should be put in the KDoc comment for a class
-             *
-             * [Action on GitHub](https://github.com/john-smith/action-for-generated-jar)
-             *
-             * @param fooBar Short description
-             * @param bazGoo Just another input
-             * with multiline description
-             * @param _customInputs Type-unsafe map where you can put any inputs that are not yet supported by
-             * the binding
-             * @param _customVersion Allows overriding action's version, for example to use a specific minor
-             * version, or a newer version that the binding doesn't yet know about
-             */
-            public data class ActionForGeneratedJar private constructor(
-                /**
-                 * Short description
-                 */
-                public val fooBar: String,
-                /**
-                 * Just another input
-                 * with multiline description
-                 */
-                @Deprecated("this is deprecated")
-                public val bazGoo: ActionForGeneratedJar.BazGoo,
-                /**
-                 * Type-unsafe map where you can put any inputs that are not yet supported by the binding
-                 */
-                public val _customInputs: Map<String, String> = mapOf(),
-                /**
-                 * Allows overriding action's version, for example to use a specific minor version, or a newer
-                 * version that the binding doesn't yet know about
-                 */
-                public val _customVersion: String? = null,
-            ) : RegularAction<Action.Outputs>("john-smith", "action-for-generated-jar", _customVersion ?: "v3")
-                    {
-                public constructor(
-                    vararg pleaseUseNamedArguments: Unit,
-                    fooBar: String,
-                    bazGoo: ActionForGeneratedJar.BazGoo,
-                    _customInputs: Map<String, String> = mapOf(),
-                    _customVersion: String? = null,
-                ) : this(fooBar=fooBar, bazGoo=bazGoo, _customInputs=_customInputs,
-                        _customVersion=_customVersion)
-
-                @Suppress("SpreadOperator")
-                override fun toYamlArguments(): LinkedHashMap<String, String> = linkedMapOf(
-                    *listOfNotNull(
-                        "foo-bar" to fooBar,
-                        "baz-goo" to bazGoo.stringValue,
-                        *_customInputs.toList().toTypedArray(),
-                    ).toTypedArray()
-                )
-
-                override fun buildOutputObject(stepId: String): Action.Outputs = Outputs(stepId)
-
-                public sealed class BazGoo(
-                    public val stringValue: String,
-                ) {
-                    public object HelloWorld : ActionForGeneratedJar.BazGoo("helloworld")
-
-                    public class Custom(
-                        customStringValue: String,
-                    ) : ActionForGeneratedJar.BazGoo(customStringValue)
-                }
-            }
-
-            """.trimIndent()
+        binding.shouldMatchFile("ActionForGeneratedJar.kt")
     }
 })