Implement ModuleAndPackageDocumentationTransformerTest.kt

2 files changed, 270 insertions, 1 deletions

diff --git a/plugins/base/src/main/kotlin/transformers/documentables/ModuleAndPackageDocumentationTransformer.kt b/plugins/base/src/main/kotlin/transformers/documentables/ModuleAndPackageDocumentationTransformer.kt
index 9bdec75a..bf6579af 100644
--- a/plugins/base/src/main/kotlin/transformers/documentables/ModuleAndPackageDocumentationTransformer.kt
+++ b/plugins/base/src/main/kotlin/transformers/documentables/ModuleAndPackageDocumentationTransformer.kt
@@ -5,7 +5,6 @@ import org.jetbrains.dokka.model.DModule
 import org.jetbrains.dokka.model.doc.DocumentationNode
 import org.jetbrains.dokka.transformers.documentation.PreMergeDocumentableTransformer
 
-// TODO NOW: Test
 internal class ModuleAndPackageDocumentationTransformer(
     private val moduleAndPackageDocumentationReader: ModuleAndPackageDocumentationReader
 ) : PreMergeDocumentableTransformer {
diff --git a/plugins/base/src/test/kotlin/transformers/ModuleAndPackageDocumentationTransformerTest.kt b/plugins/base/src/test/kotlin/transformers/ModuleAndPackageDocumentationTransformerTest.kt
new file mode 100644
index 00000000..a947633d
--- /dev/null
+++ b/plugins/base/src/test/kotlin/transformers/ModuleAndPackageDocumentationTransformerTest.kt
@@ -0,0 +1,270 @@
+package transformers
+
+import org.jetbrains.dokka.DokkaConfiguration.DokkaSourceSet
+import org.jetbrains.dokka.base.transformers.documentables.ModuleAndPackageDocumentationReader
+import org.jetbrains.dokka.base.transformers.documentables.ModuleAndPackageDocumentationTransformer
+import org.jetbrains.dokka.links.DRI
+import org.jetbrains.dokka.model.DModule
+import org.jetbrains.dokka.model.DPackage
+import org.jetbrains.dokka.model.SourceSetDependent
+import org.jetbrains.dokka.model.doc.Description
+import org.jetbrains.dokka.model.doc.DocumentationNode
+import org.jetbrains.dokka.model.doc.Text
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+import renderers.defaultSourceSet
+
+
+class ModuleAndPackageDocumentationTransformerTest {
+
+    @Test
+    fun `empty list of modules`() {
+        val transformer = ModuleAndPackageDocumentationTransformer(
+            object : ModuleAndPackageDocumentationReader {
+                override fun get(module: DModule): SourceSetDependent<DocumentationNode> = throw NotImplementedError()
+                override fun get(pkg: DPackage): SourceSetDependent<DocumentationNode> = throw NotImplementedError()
+            }
+        )
+
+        assertEquals(
+            emptyList<DModule>(), transformer(emptyList()),
+        )
+    }
+
+    @Test
+    fun `single module documentation`() {
+        val transformer = ModuleAndPackageDocumentationTransformer(
+            object : ModuleAndPackageDocumentationReader {
+                override fun get(pkg: DPackage): SourceSetDependent<DocumentationNode> = throw NotImplementedError()
+                override fun get(module: DModule): SourceSetDependent<DocumentationNode> {
+                    return module.sourceSets.associateWith { sourceSet ->
+                        documentationNode("doc" + sourceSet.displayName)
+                    }
+                }
+
+            }
+        )
+
+        val result = transformer(
+            listOf(
+                DModule(
+                    "ModuleName",
+                    documentation = emptyMap(),
+                    packages = emptyList(),
+                    sourceSets = setOf(
+                        sourceSet("A"),
+                        sourceSet("B")
+                    )
+                )
+            )
+        )
+
+        assertEquals(
+            DModule(
+                "ModuleName",
+                documentation = mapOf(
+                    sourceSet("A") to documentationNode("docA"),
+                    sourceSet("B") to documentationNode("docB")
+                ),
+                sourceSets = setOf(sourceSet("A"), sourceSet("B")),
+                packages = emptyList()
+            ),
+            result.single()
+        )
+
+    }
+
+    @Test
+    fun `merges with already existing module documentation`() {
+        val transformer = ModuleAndPackageDocumentationTransformer(
+            object : ModuleAndPackageDocumentationReader {
+                override fun get(pkg: DPackage): SourceSetDependent<DocumentationNode> = throw NotImplementedError()
+                override fun get(module: DModule): SourceSetDependent<DocumentationNode> {
+                    /* Only add documentation for first source set */
+                    return module.sourceSets.take(1).associateWith { sourceSet ->
+                        documentationNode("doc" + sourceSet.displayName)
+                    }
+                }
+            }
+        )
+
+        val result = transformer(
+            listOf(
+                DModule(
+                    "MyModule",
+                    documentation = mapOf(
+                        sourceSet("A") to documentationNode("pre-existing:A"),
+                        sourceSet("B") to documentationNode("pre-existing:B")
+                    ),
+                    sourceSets = setOf(sourceSet("A"), sourceSet("B")),
+                    packages = emptyList()
+                )
+            )
+        )
+
+        assertEquals(
+            DModule(
+                "MyModule",
+                documentation = mapOf(
+                    /* Expect previous documentation and newly attached one */
+                    sourceSet("A") to documentationNode("pre-existing:A", "docA"),
+                    /* Only first source set will get documentation attached */
+                    sourceSet("B") to documentationNode("pre-existing:B")
+                ),
+                sourceSets = setOf(sourceSet("A"), sourceSet("B")),
+                packages = emptyList()
+            ),
+            result.single()
+        )
+    }
+
+    @Test
+    fun `package documentation`() {
+        val transformer = ModuleAndPackageDocumentationTransformer(
+            object : ModuleAndPackageDocumentationReader {
+                override fun get(module: DModule): SourceSetDependent<DocumentationNode> = emptyMap()
+                override fun get(pkg: DPackage): SourceSetDependent<DocumentationNode> {
+                    /* Only attach documentation to packages with 'attach' */
+                    if ("attach" !in pkg.dri.packageName.orEmpty()) return emptyMap()
+                    /* Only attach documentation to two source sets */
+                    return pkg.sourceSets.take(2).associateWith { sourceSet ->
+                        documentationNode("doc:${sourceSet.displayName}:${pkg.dri.packageName}")
+                    }
+                }
+            }
+        )
+
+        val result = transformer(
+            listOf(
+                DModule(
+                    "MyModule",
+                    documentation = emptyMap(),
+                    sourceSets = emptySet(),
+                    packages = listOf(
+                        dPackage(
+                            name = "com.sample",
+                            documentation = mapOf(
+                                sourceSet("A") to documentationNode("pre-existing:A:com.sample")
+                            ),
+                            sourceSets = setOf(sourceSet("A"), sourceSet("B"), sourceSet("C")),
+                        ),
+                        dPackage(
+                            name = "com.attach",
+                            documentation = mapOf(
+                                sourceSet("A") to documentationNode("pre-existing:A:com.attach")
+                            ),
+                            sourceSets = setOf(sourceSet("A"), sourceSet("B"), sourceSet("C"))
+                        ),
+                        dPackage(
+                            name = "com.attach.sub",
+                            documentation = mapOf(
+                                sourceSet("A") to documentationNode("pre-existing:A:com.attach.sub"),
+                                sourceSet("B") to documentationNode("pre-existing:B:com.attach.sub"),
+                                sourceSet("C") to documentationNode("pre-existing:C:com.attach.sub")
+                            ),
+                            sourceSets = setOf(sourceSet("A"), sourceSet("B"), sourceSet("C")),
+                        )
+                    )
+                )
+            )
+        )
+
+        result.single().packages.forEach { pkg ->
+            assertEquals(
+                setOf(sourceSet("A"), sourceSet("B"), sourceSet("C")), pkg.sourceSets,
+                "Expected source sets A, B, C for package ${pkg.dri.packageName}"
+            )
+        }
+
+        val comSample = result.single().packages.single { it.dri.packageName == "com.sample" }
+        assertEquals(
+             mapOf(sourceSet("A") to documentationNode("pre-existing:A:com.sample")),
+            comSample.documentation,
+            "Expected no documentation added to package 'com.sample' because of wrong package"
+        )
+
+        val comAttach = result.single().packages.single { it.dri.packageName == "com.attach" }
+        assertEquals(
+            mapOf(
+                sourceSet("A") to documentationNode("pre-existing:A:com.attach", "doc:A:com.attach"),
+                sourceSet("B") to documentationNode("doc:B:com.attach")
+            ),
+            comAttach.documentation,
+            "Expected documentation added to source sets A and B"
+        )
+
+        assertEquals(
+            DModule(
+                "MyModule",
+                documentation = emptyMap(),
+                sourceSets = emptySet(),
+                packages = listOf(
+                    dPackage(
+                        name = "com.sample",
+                        documentation = mapOf(
+                            /* No documentation added, since in wrong package */
+                            sourceSet("A") to documentationNode("pre-existing:A:com.sample")
+                        ),
+                        sourceSets = setOf(sourceSet("A"), sourceSet("B"), sourceSet("C")),
+
+                        ),
+                    dPackage(
+                        name = "com.attach",
+                        documentation = mapOf(
+                            /* Documentation added */
+                            sourceSet("A") to documentationNode("pre-existing:A:com.attach", "doc:A:com.attach"),
+                            sourceSet("B") to documentationNode("doc:B:com.attach")
+                        ),
+                        sourceSets = setOf(sourceSet("A"), sourceSet("B"), sourceSet("C")),
+                    ),
+                    dPackage(
+                        name = "com.attach.sub",
+                        documentation = mapOf(
+                            /* Documentation added */
+                            sourceSet("A") to documentationNode(
+                                "pre-existing:A:com.attach.sub",
+                                "doc:A:com.attach.sub"
+                            ),
+                            /* Documentation added */
+                            sourceSet("B") to documentationNode(
+                                "pre-existing:B:com.attach.sub",
+                                "doc:B:com.attach.sub"
+                            ),
+                            /* No documentation added, since in wrong source set */
+                            sourceSet("C") to documentationNode("pre-existing:C:com.attach.sub")
+                        ),
+                        sourceSets = setOf(sourceSet("A"), sourceSet("B"), sourceSet("C")),
+                    )
+                )
+            ), result.single()
+        )
+    }
+
+}
+
+
+private fun sourceSet(name: String): DokkaSourceSet {
+    return defaultSourceSet.copy(
+        displayName = name,
+        sourceSetID = defaultSourceSet.sourceSetID.copy(sourceSetName = name)
+    )
+}
+
+private fun documentationNode(vararg texts: String): DocumentationNode {
+    return DocumentationNode(texts.toList().map { Description(Text(it)) })
+}
+
+private fun dPackage(
+    name: String,
+    documentation: SourceSetDependent<DocumentationNode>,
+    sourceSets: Set<DokkaSourceSet>
+): DPackage = DPackage(
+    dri = DRI(name),
+    documentation = documentation,
+    sourceSets = sourceSets,
+    classlikes = emptyList(),
+    functions = emptyList(),
+    properties = emptyList(),
+    typealiases = emptyList()
+
+)