add intellij integration test structure

.github/workflows/test.yaml

@@ -0,0 +1,40 @@
+name: Tests
+on:
+  pull_request:
+
+permissions:
+    contents: read
+    checks: write
+    pull-requests: write
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: 17
+          cache: 'gradle'
+
+      - name: Install Clojure
+        uses: DeLaGuardo/setup-clojure@master
+        with:
+          bb: '1.12.196'
+          cli: 1.12.0.1530
+
+      - name: Run tests
+        run: ./gradlew test
+
+      - name: Publish Test Report
+        uses: mikepenz/action-junit-report@v5
+        if: success() || failure() # always run even if the previous step fails
+        with:
+          report_paths: '**/build/test-results/test/TEST-*.xml'
+          simplified_summary: true
+          comment: false

bb.edn

@@ -1,5 +1,6 @@
 {:paths ["src/scripts"]
  :tasks {tag scripts/tag
          build-plugin scripts/build-plugin
+         test scripts/tests
          install-plugin scripts/install-plugin
          publish-plugin scripts/publish-plugin}}

build.gradle.kts

@@ -35,18 +35,24 @@ repositories {
 
 dependencies {
     implementation ("org.clojure:clojure:1.12.0")
-    implementation ("com.github.ericdallo:clj4intellij:0.7.1")
+    implementation ("com.github.ericdallo:clj4intellij:0.8.0")
     implementation ("seesaw:seesaw:1.5.0")
     implementation ("camel-snake-kebab:camel-snake-kebab:0.4.3")
     implementation ("com.rpl:proxy-plus:0.0.9")
     implementation ("dev.weavejester:cljfmt:0.13.0")
     implementation ("com.github.clojure-lsp:clojure-lsp:2025.01.22-23.28.23")
+    implementation ("nrepl:nrepl:1.3.1")
+
+    testImplementation("junit:junit:latest.release")
+    testImplementation("org.junit.platform:junit-platform-launcher:latest.release")
+    testRuntimeOnly ("dev.clojurephant:jovial:0.4.2")
 }
 
 sourceSets {
     main {
         java.srcDirs("src/main", "src/gen")
         if (project.gradle.startParameter.taskNames.contains("buildPlugin") ||
+            project.gradle.startParameter.taskNames.contains("clojureRepl") ||
             project.gradle.startParameter.taskNames.contains("runIde")) {
             resources.srcDirs("src/main/dev-resources")
         }
@@ -146,6 +152,10 @@ tasks {
         systemProperty("jb.consents.confirmation.enabled", "false")
     }
 
+    test {
+        systemProperty("idea.mimic.jar.url.connection", "true")
+    }
+
     signPlugin {
         certificateChain.set(System.getenv("CERTIFICATE_CHAIN"))
         privateKey.set(System.getenv("PRIVATE_KEY"))
@@ -165,6 +175,26 @@ tasks {
         enabled = false
     }
 
+    clojureRepl {
+        dependsOn("compileClojure")
+        classpath.from(sourceSets.main.get().runtimeClasspath
+                       + file("build/classes/kotlin/main")
+                       + file("build/clojure/main")
+        )
+        // doFirst {
+        //     println(classpath.asPath)
+        // }
+        forkOptions.jvmArgs = listOf("--add-opens=java.desktop/java.awt=ALL-UNNAMED",
+                                     "--add-opens=java.desktop/java.awt.event=ALL-UNNAMED",
+                                     "--add-opens=java.desktop/sun.awt=ALL-UNNAMED",
+                                     "--add-opens=java.desktop/sun.font=ALL-UNNAMED",
+                                     "--add-opens=java.base/java.lang=ALL-UNNAMED",
+                                     "-Djava.system.class.loader=com.intellij.util.lang.PathClassLoader",
+                                     "-Didea.mimic.jar.url.connection=true",
+                                     "-Didea.force.use.core.classloader=true"
+        )
+    }
+
     generateParser {
         source.set("src/main/gramar/clojure.bnf")
         targetRoot.set("src/gen")
@@ -180,14 +210,18 @@ tasks {
     }
 }
 
+tasks.withType<Test>().configureEach {
+    useJUnitPlatform()
+}
+
 grammarKit {
   jflexRelease.set("1.7.0-1")
   grammarKitRelease.set("2021.1.2")
   intellijRelease.set("203.7717.81")
 }
 
 clojure.builds.named("main") {
-    classpath.from(sourceSets.main.get().runtimeClasspath.asPath)
+    classpath.from(sourceSets.main.get().runtimeClasspath.asPath + "build/classes/kotlin/main")
     checkAll()
     aotAll()
     reflection.set("fail")
@@ -213,6 +247,6 @@ fun fetchLatestLsp4ijNightlyVersion(): String {
         println("Failed to fetch LSP4IJ nightly build version: ${e.message}")
     }
 
-    val minVersion = "0.0.1-20231213-012910"
+    val minVersion = "0.12.1-20250404-161025"
     return if (minVersion < onlineVersion) onlineVersion else minVersion
 }

src/main/clojure/com/github/clojure_lsp/intellij/editor.clj

@@ -1,9 +1,10 @@
 (ns com.github.clojure-lsp.intellij.editor
   (:require
    [com.github.clojure-lsp.intellij.db :as db]
-   [com.github.clojure-lsp.intellij.editor :as editor])
+   [com.github.clojure-lsp.intellij.editor :as editor]
+   [com.github.ericdallo.clj4intellij.app-manager :as app-manager])
   (:import
-   [com.intellij.openapi.editor Editor]
+   [com.intellij.openapi.editor CaretModel Editor LogicalPosition]
    [com.intellij.openapi.fileEditor FileDocumentManager]
    [com.intellij.openapi.project ProjectLocator]
    [com.intellij.openapi.util.text StringUtil]
@@ -23,3 +24,11 @@
 (defn guess-project-for [^VirtualFile file]
   (or (.guessProjectForFile (ProjectLocator/getInstance) file)
       (first (db/all-projects))))
+
+(defn move-caret-to-position
+  "Moves the caret to the specified logical position in the editor."
+  [^Editor editor line column]
+  (let [caret ^CaretModel (.getCaretModel editor)
+        new-position (LogicalPosition. line column)]
+    @(app-manager/invoke-later!
+      {:invoke-fn (fn [] (.moveToLogicalPosition caret new-position))})))

src/scripts/scripts.clj

@@ -35,6 +35,9 @@
   (shell "git push origin HEAD")
   (shell "git push origin --tags"))
 
+(defn tests []
+  (shell "./gradlew test"))
+
 #_{:clj-kondo/ignore [:clojure-lsp/unused-public-var]}
 (defn build-plugin []
   (shell "./gradlew buildPlugin"))

src/test/clojure/com/github/clojure_lsp/intellij/slurp_action_test.clj

@@ -0,0 +1,39 @@
+(ns com.github.clojure-lsp.intellij.slurp-action-test
+  (:require
+   [clojure.test :refer [deftest is]]
+   [com.github.clojure-lsp.intellij.editor :as editor]
+   [com.github.clojure-lsp.intellij.test-utils :as test-utils]
+   [com.github.ericdallo.clj4intellij.test :as clj4intellij.test])
+  (:import
+   [com.intellij.openapi.project Project]
+   [com.intellij.testFramework.fixtures CodeInsightTestFixture]))
+
+(set! *warn-on-reflection* true)
+
+(deftest slurp-action-test
+  "Tests the Forward Slurp editor action functionality in Clojure LSP.
+   This test:
+   1. Sets up a test project with a Clojure file
+   2. Opens the file in the editor
+   3. Sets up the LSP server
+   4. Moves the caret to a specific position
+   5. Executes the Forward Slurp action
+   6. Verifies the resulting text matches the expected output
+
+   The test ensures that the Forward Slurp action correctly modifies the code structure
+   by moving the closing parenthesis forward."
+  (let [project-name "clojure.sample-project"
+        {:keys [fixtures project deps-file]} (test-utils/setup-test-project project-name)
+        clj-file (.copyFileToProject ^CodeInsightTestFixture fixtures "foo.clj")]
+    (is (= project-name (.getName ^Project project)))
+    (is deps-file)
+
+    (let [editor (test-utils/open-file-in-editor fixtures clj-file)]
+      (test-utils/setup-lsp-server project)
+      (editor/move-caret-to-position editor 2 8)
+      (test-utils/run-editor-action "ClojureLSP.ForwardSlurp" project)
+      (clj4intellij.test/dispatch-all)
+
+      (.checkResultByFile ^CodeInsightTestFixture fixtures "foo_expected.clj")
+
+      (test-utils/teardown-test-project project))))

src/test/clojure/com/github/clojure_lsp/intellij/test_utils.clj

@@ -0,0 +1,92 @@
+(ns com.github.clojure-lsp.intellij.test-utils
+  (:require
+   [com.github.clojure-lsp.intellij.client :as lsp-client]
+   [com.github.clojure-lsp.intellij.server :as server]
+   [com.github.ericdallo.clj4intellij.app-manager :as app-manager]
+   [com.github.ericdallo.clj4intellij.test :as clj4intellij.test])
+  (:import
+   [com.github.clojure_lsp.intellij.extension SettingsState]
+   [com.intellij.ide DataManager]
+   [com.intellij.openapi.actionSystem ActionManager]
+   [com.intellij.openapi.components ServiceManager]
+   [com.intellij.testFramework.fixtures CodeInsightTestFixture]))
+
+(set! *warn-on-reflection* true)
+
+(defn get-editor-text
+  "Returns the text content of the editor's document."
+  [^CodeInsightTestFixture fixture]
+  (-> fixture .getEditor .getDocument .getText))
+
+(defn open-file-in-editor
+  "Opens a file in the editor and returns the editor instance."
+  [^CodeInsightTestFixture fixture file]
+  (let [project (.getProject fixture)]
+    (app-manager/write-command-action
+     project
+     (fn [] (.openFileInEditor fixture file)))
+    (.getEditor fixture)))
+
+(defn run-editor-action
+  "Runs an editor action with the given ID for the specified project."
+  [action-id project]
+  (let [action (.getAction (ActionManager/getInstance) action-id)
+        context (.getDataContext (DataManager/getInstance))]
+    (app-manager/write-command-action
+     project
+     (fn []
+       (.actionPerformed
+        action
+        (com.intellij.openapi.actionSystem.AnActionEvent/createFromDataContext action-id nil context))))))
+
+(defn wait-lsp-start
+  "Dispatches all events until the LSP server is started or the timeout is reached."
+  [{:keys [project millis timeout]
+    :or {millis 1000
+         timeout 10000}}]
+  (let [start-time (System/currentTimeMillis)]
+    (loop []
+      (let [current-time (System/currentTimeMillis)
+            elapsed-time (- current-time start-time)
+            status (lsp-client/server-status project)]
+        (cond
+          (>= elapsed-time timeout)
+          (throw (ex-info "LSP server failed to start within timeout"
+                          {:elapsed-time elapsed-time
+                           :final-status status}))
+
+          (= status :started)
+          true
+
+          :else
+          (do
+            (clj4intellij.test/dispatch-all)
+            (Thread/sleep millis)
+            (recur)))))))
+
+(defn teardown-test-project
+  "Shuts down all resources for the given project."
+  [project]
+  (server/shutdown! project))
+
+(defn setup-test-project
+  "Sets up a test project with the given name and optional deps.edn content.
+   Returns a map with :fixture, :project, and :deps-file."
+  ([project-name]
+   (setup-test-project project-name "{}"))
+  ([project-name deps-content]
+   (let [fixtures (clj4intellij.test/setup project-name)
+         deps-file (.createFile fixtures "deps.edn" deps-content)
+         _ (.setTestDataPath fixtures "testdata")
+         project (.getProject fixtures)]
+     {:fixtures fixtures
+      :project project
+      :deps-file deps-file})))
+
+(defn setup-lsp-server
+  "Sets up and waits for the LSP server to be ready."
+  [project]
+  (let [my-settings ^SettingsState (ServiceManager/getService SettingsState)]
+    (.loadState my-settings my-settings)
+    (clj4intellij.test/dispatch-all)
+    (wait-lsp-start {:project project})))

testdata/foo.clj

@@ -0,0 +1,3 @@
+(ns foo)
+
+(println) "Oiii"

testdata/foo_expected.clj

@@ -0,0 +1,3 @@
+(ns foo)
+
+(println "Oiii")