Don't use older dir from previous runs in versioning (#1963)

1 files changed, 86 insertions, 0 deletions

diff --git a/integration-tests/gradle/src/integrationTest/kotlin/org/jetbrains/dokka/it/gradle/Versioning0IntegrationTest.kt b/integration-tests/gradle/src/integrationTest/kotlin/org/jetbrains/dokka/it/gradle/Versioning0IntegrationTest.kt
new file mode 100644
index 00000000..846dcc55
--- /dev/null
+++ b/integration-tests/gradle/src/integrationTest/kotlin/org/jetbrains/dokka/it/gradle/Versioning0IntegrationTest.kt
@@ -0,0 +1,86 @@
+package org.jetbrains.dokka.it.gradle
+
+import org.gradle.testkit.runner.TaskOutcome
+import org.jsoup.Jsoup
+import org.junit.runners.Parameterized
+import java.io.File
+import kotlin.test.*
+
+class Versioning0IntegrationTest(override val versions: BuildVersions) : AbstractGradleIntegrationTest() {
+    companion object {
+        @get:JvmStatic
+        @get:Parameterized.Parameters(name = "{0}")
+        val versions = BuildVersions.permutations(
+            gradleVersions = listOf("7.0"),
+            kotlinVersions = listOf("1.5.0")
+        )
+    }
+
+    @BeforeTest
+    fun prepareProjectFiles() {
+        val templateProjectDir = File("projects", "it-multimodule-versioning-0")
+        templateProjectDir.listFiles().orEmpty()
+            .filter { it.isFile }
+            .forEach { topLevelFile -> topLevelFile.copyTo(File(projectDir, topLevelFile.name)) }
+        File(templateProjectDir, "first").copyRecursively(File(projectDir, "first"))
+        File(templateProjectDir, "second").copyRecursively(File(projectDir, "second"))
+    }
+
+    /**
+     * This test runs versioning 3 times to simulate how users might use it in the real word
+     *
+     * Each version has a separate task that has a different version number from 1.0 to 1.2 and is placed under `builDir/dokkas/<version>`
+     *
+     * Output is produced in a standard build directory under `build/dokka/htmlMultiModule`
+     */
+    @Test
+    fun execute() {
+        val result = createGradleRunner(
+            ":dokkaHtmlMultiModuleBaseVersion",
+            "-i", "-s"
+        ).buildRelaxed()
+
+        assertEquals(TaskOutcome.SUCCESS, assertNotNull(result.task(":dokkaHtmlMultiModuleBaseVersion")).outcome)
+        val outputDir = File(projectDir, "dokkas/1.0")
+        assertTrue(outputDir.isDirectory, "Missing dokka output directory")
+
+        val result2 = createGradleRunner(
+            "clean",
+            ":dokkaHtmlMultiModuleNextVersion",
+            "-i", "-s"
+        ).buildRelaxed()
+
+        assertEquals(TaskOutcome.SUCCESS, assertNotNull(result2.task(":dokkaHtmlMultiModuleNextVersion")).outcome)
+        val outputDir2 = File(projectDir, "dokkas/1.1")
+        assertTrue(outputDir2.isDirectory, "Missing dokka output directory")
+
+        val result3 = createGradleRunner(
+            "clean",
+            ":dokkaHtmlMultiModule",
+            "-i", "-s"
+        ).buildRelaxed()
+
+        assertEquals(TaskOutcome.SUCCESS, assertNotNull(result3.task(":dokkaHtmlMultiModule")).outcome)
+        val outputDirMultiModule = File(projectDir, "build/dokka/htmlMultiModule")
+        assertTrue(outputDirMultiModule.isDirectory, "Missing dokka output directory")
+
+        val version1_0 = outputDirMultiModule.resolve("older").resolve("1.0")
+        val version1_1 = outputDirMultiModule.resolve("older").resolve("1.1")
+
+        assertTrue(version1_0.isDirectory, "Assumed to have 1.0 version in older dir")
+        assertTrue(version1_1.isDirectory, "Assumed to have 1.1 version in older dir")
+
+        assertFalse(version1_0.resolve("older").exists(), "Subversions should not have older directory")
+        assertFalse(version1_1.resolve("older").exists(), "Subversions should not have older directory")
+
+        val parsedIndex = Jsoup.parse(outputDirMultiModule.resolve("index.html").readText())
+        val dropdown = parsedIndex.select("dokka-template-command").firstOrNull()
+        assertNotNull(dropdown)
+        val links = dropdown.select("a")
+        assertEquals(3, links.count(), "Expected 3 versions to be in dropdown: 1.0, 1.1 and 1.2")
+        assertEquals(
+            listOf("1.2" to "index.html", "1.1" to "older/1.1/index.html", "1.0" to "older/1.0/index.html"),
+            links.map { it.text() to it.attr("href") }
+        )
+    }
+}
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