| 
 | 1 | +// Copyright 2025 Amazon.com, Inc. or its affiliates. All Rights Reserved.  | 
 | 2 | +// SPDX-License-Identifier: Apache-2.0  | 
 | 3 | + | 
 | 4 | +package software.aws.toolkits.jetbrains.services.amazonq.lsp.util  | 
 | 5 | + | 
 | 6 | +import com.intellij.openapi.command.WriteCommandAction  | 
 | 7 | +import com.intellij.openapi.editor.Document  | 
 | 8 | +import com.intellij.openapi.editor.Editor  | 
 | 9 | +import com.intellij.openapi.editor.LogicalPosition  | 
 | 10 | +import com.intellij.openapi.fileEditor.FileDocumentManager  | 
 | 11 | +import com.intellij.openapi.fileEditor.FileEditorManager  | 
 | 12 | +import com.intellij.openapi.fileEditor.TextEditor  | 
 | 13 | +import com.intellij.openapi.project.Project  | 
 | 14 | +import com.intellij.openapi.vfs.VirtualFile  | 
 | 15 | +import com.intellij.openapi.vfs.VirtualFileManager  | 
 | 16 | +import com.intellij.testFramework.ApplicationExtension  | 
 | 17 | +import io.mockk.every  | 
 | 18 | +import io.mockk.mockk  | 
 | 19 | +import io.mockk.mockkStatic  | 
 | 20 | +import io.mockk.slot  | 
 | 21 | +import io.mockk.verify  | 
 | 22 | +import org.eclipse.lsp4j.Position  | 
 | 23 | +import org.eclipse.lsp4j.Range  | 
 | 24 | +import org.eclipse.lsp4j.TextDocumentEdit  | 
 | 25 | +import org.eclipse.lsp4j.TextEdit  | 
 | 26 | +import org.eclipse.lsp4j.VersionedTextDocumentIdentifier  | 
 | 27 | +import org.eclipse.lsp4j.WorkspaceEdit  | 
 | 28 | +import org.eclipse.lsp4j.jsonrpc.messages.Either  | 
 | 29 | +import org.junit.jupiter.api.BeforeEach  | 
 | 30 | +import org.junit.jupiter.api.Test  | 
 | 31 | +import org.junit.jupiter.api.extension.ExtendWith  | 
 | 32 | + | 
 | 33 | +@ExtendWith(ApplicationExtension::class)  | 
 | 34 | +class ApplyWorkspaceEditTest {  | 
 | 35 | + | 
 | 36 | +    private lateinit var project: Project  | 
 | 37 | +    private lateinit var virtualFileManager: VirtualFileManager  | 
 | 38 | +    private lateinit var fileDocumentManager: FileDocumentManager  | 
 | 39 | +    private lateinit var fileEditorManager: FileEditorManager  | 
 | 40 | + | 
 | 41 | +    @BeforeEach  | 
 | 42 | +    fun setUp() {  | 
 | 43 | +        virtualFileManager = mockk(relaxed = true)  | 
 | 44 | +        fileDocumentManager = mockk(relaxed = true)  | 
 | 45 | +        fileEditorManager = mockk(relaxed = true)  | 
 | 46 | +        project = mockk(relaxed = true)  | 
 | 47 | + | 
 | 48 | +        mockkStatic(WriteCommandAction::class)  | 
 | 49 | +        every { WriteCommandAction.runWriteCommandAction(any(), any<Runnable>()) } answers {  | 
 | 50 | +            secondArg<Runnable>().run()  | 
 | 51 | +        }  | 
 | 52 | + | 
 | 53 | +        mockkStatic(VirtualFileManager::getInstance)  | 
 | 54 | +        every { VirtualFileManager.getInstance() } returns virtualFileManager  | 
 | 55 | + | 
 | 56 | +        mockkStatic(FileDocumentManager::getInstance)  | 
 | 57 | +        every { FileDocumentManager.getInstance() } returns fileDocumentManager  | 
 | 58 | + | 
 | 59 | +        mockkStatic(FileEditorManager::getInstance)  | 
 | 60 | +        every { FileEditorManager.getInstance(any()) } returns fileEditorManager  | 
 | 61 | +    }  | 
 | 62 | + | 
 | 63 | +    @Test  | 
 | 64 | +    fun `test applyWorkspaceEdit with changes`() {  | 
 | 65 | +        val uri = "file:///test.kt"  | 
 | 66 | +        val document = mockk<Document>(relaxed = true)  | 
 | 67 | +        val file = mockk<VirtualFile>()  | 
 | 68 | +        val textEdit = TextEdit(Range(Position(0, 0), Position(0, 5)), "newText")  | 
 | 69 | + | 
 | 70 | +        every { virtualFileManager.findFileByUrl(uri) } returns file  | 
 | 71 | +        every { fileDocumentManager.getDocument(file) } returns document  | 
 | 72 | +        every { document.getLineStartOffset(0) } returns 0  | 
 | 73 | + | 
 | 74 | +        val workspaceEdit = WorkspaceEdit().apply {  | 
 | 75 | +            changes = mapOf(uri to listOf(textEdit))  | 
 | 76 | +        }  | 
 | 77 | + | 
 | 78 | +        LspEditorUtil.applyWorkspaceEdit(project, workspaceEdit)  | 
 | 79 | + | 
 | 80 | +        verify { document.replaceString(0, 5, "newText") }  | 
 | 81 | +    }  | 
 | 82 | + | 
 | 83 | +    @Test  | 
 | 84 | +    fun `test applyWorkspaceEdit with documentChanges`() {  | 
 | 85 | +        val uri = "file:///test.kt"  | 
 | 86 | +        val document = mockk<Document>(relaxed = true)  | 
 | 87 | +        val file = mockk<VirtualFile>()  | 
 | 88 | +        val textEdit = TextEdit(Range(Position(0, 0), Position(0, 5)), "newText")  | 
 | 89 | + | 
 | 90 | +        every { virtualFileManager.findFileByUrl(uri) } returns file  | 
 | 91 | +        every { fileDocumentManager.getDocument(file) } returns document  | 
 | 92 | +        every { document.getLineStartOffset(0) } returns 0  | 
 | 93 | + | 
 | 94 | +        val versionedIdentifier = VersionedTextDocumentIdentifier(uri, 1)  | 
 | 95 | +        val textDocumentEdit = TextDocumentEdit(versionedIdentifier, listOf(textEdit))  | 
 | 96 | +        val workspaceEdit = WorkspaceEdit().apply {  | 
 | 97 | +            documentChanges = listOf(Either.forLeft(textDocumentEdit))  | 
 | 98 | +        }  | 
 | 99 | + | 
 | 100 | +        LspEditorUtil.applyWorkspaceEdit(project, workspaceEdit)  | 
 | 101 | + | 
 | 102 | +        verify { document.replaceString(0, 5, "newText") }  | 
 | 103 | +    }  | 
 | 104 | + | 
 | 105 | +    @Test  | 
 | 106 | +    fun `test applyWorkspaceEdit with editor`() {  | 
 | 107 | +        val uri = "file:///test.kt"  | 
 | 108 | +        val document = mockk<Document>(relaxed = true)  | 
 | 109 | +        val file = mockk<VirtualFile>()  | 
 | 110 | +        val editor = mockk<Editor>()  | 
 | 111 | +        val textEditor = mockk<TextEditor>()  | 
 | 112 | + | 
 | 113 | +        every { virtualFileManager.findFileByUrl(uri) } returns file  | 
 | 114 | +        every { fileDocumentManager.getDocument(file) } returns document  | 
 | 115 | +        every { fileEditorManager.getSelectedEditor(file) } returns textEditor  | 
 | 116 | +        every { textEditor.editor } returns editor  | 
 | 117 | + | 
 | 118 | +        val positionSlot = slot<LogicalPosition>()  | 
 | 119 | +        every { editor.logicalPositionToOffset(capture(positionSlot)) } answers {  | 
 | 120 | +            if (positionSlot.captured.line == 0 && positionSlot.captured.column == 0) 0 else 5  | 
 | 121 | +        }  | 
 | 122 | + | 
 | 123 | +        val textEdit = TextEdit(Range(Position(0, 0), Position(0, 5)), "newText")  | 
 | 124 | +        val workspaceEdit = WorkspaceEdit().apply {  | 
 | 125 | +            changes = mapOf(uri to listOf(textEdit))  | 
 | 126 | +        }  | 
 | 127 | + | 
 | 128 | +        LspEditorUtil.applyWorkspaceEdit(project, workspaceEdit)  | 
 | 129 | + | 
 | 130 | +        verify { document.replaceString(0, 5, "newText") }  | 
 | 131 | +    }  | 
 | 132 | + | 
 | 133 | +    @Test  | 
 | 134 | +    fun `test applyWorkspaceEdit with both changes and documentChanges`() {  | 
 | 135 | +        val uri1 = "file:///test1.kt"  | 
 | 136 | +        val uri2 = "file:///test2.kt"  | 
 | 137 | +        val document1 = mockk<Document>(relaxed = true)  | 
 | 138 | +        val document2 = mockk<Document>(relaxed = true)  | 
 | 139 | +        val file1 = mockk<VirtualFile>()  | 
 | 140 | +        val file2 = mockk<VirtualFile>()  | 
 | 141 | + | 
 | 142 | +        val textEdit1 = TextEdit(Range(Position(0, 0), Position(0, 5)), "newText1")  | 
 | 143 | +        val textEdit2 = TextEdit(Range(Position(1, 0), Position(1, 10)), "newText2")  | 
 | 144 | + | 
 | 145 | +        every { virtualFileManager.findFileByUrl(uri1) } returns file1  | 
 | 146 | +        every { virtualFileManager.findFileByUrl(uri2) } returns file2  | 
 | 147 | +        every { fileDocumentManager.getDocument(file1) } returns document1  | 
 | 148 | +        every { fileDocumentManager.getDocument(file2) } returns document2  | 
 | 149 | +        every { document1.getLineStartOffset(0) } returns 0  | 
 | 150 | +        every { document2.getLineStartOffset(1) } returns 100  | 
 | 151 | + | 
 | 152 | +        val versionedIdentifier = VersionedTextDocumentIdentifier(uri1, 1)  | 
 | 153 | +        val textDocumentEdit = TextDocumentEdit(versionedIdentifier, listOf(textEdit1))  | 
 | 154 | + | 
 | 155 | +        val workspaceEdit = WorkspaceEdit().apply {  | 
 | 156 | +            documentChanges = listOf(Either.forLeft(textDocumentEdit))  | 
 | 157 | +            changes = mapOf(uri2 to listOf(textEdit2))  | 
 | 158 | +        }  | 
 | 159 | + | 
 | 160 | +        LspEditorUtil.applyWorkspaceEdit(project, workspaceEdit)  | 
 | 161 | + | 
 | 162 | +        verify { document1.replaceString(0, 5, "newText1") }  | 
 | 163 | +        verify { document2.replaceString(100, 110, "newText2") }  | 
 | 164 | +    }  | 
 | 165 | + | 
 | 166 | +    @Test  | 
 | 167 | +    fun `test applyWorkspaceEdit with multiple edits to same file`() {  | 
 | 168 | +        val uri = "file:///test.kt"  | 
 | 169 | +        val document = mockk<Document>(relaxed = true)  | 
 | 170 | +        val file = mockk<VirtualFile>()  | 
 | 171 | + | 
 | 172 | +        val textEdit1 = TextEdit(Range(Position(0, 0), Position(0, 5)), "newText1")  | 
 | 173 | +        val textEdit2 = TextEdit(Range(Position(1, 0), Position(1, 10)), "newText2")  | 
 | 174 | + | 
 | 175 | +        every { virtualFileManager.findFileByUrl(uri) } returns file  | 
 | 176 | +        every { fileDocumentManager.getDocument(file) } returns document  | 
 | 177 | +        every { document.getLineStartOffset(0) } returns 0  | 
 | 178 | +        every { document.getLineStartOffset(1) } returns 100  | 
 | 179 | + | 
 | 180 | +        val workspaceEdit = WorkspaceEdit().apply {  | 
 | 181 | +            changes = mapOf(uri to listOf(textEdit1, textEdit2))  | 
 | 182 | +        }  | 
 | 183 | + | 
 | 184 | +        LspEditorUtil.applyWorkspaceEdit(project, workspaceEdit)  | 
 | 185 | + | 
 | 186 | +        verify { document.replaceString(0, 5, "newText1") }  | 
 | 187 | +        verify { document.replaceString(100, 110, "newText2") }  | 
 | 188 | +    }  | 
 | 189 | + | 
 | 190 | +    @Test  | 
 | 191 | +    fun `test applyWorkspaceEdit with empty edits`() {  | 
 | 192 | +        val workspaceEdit = WorkspaceEdit()  | 
 | 193 | +        LspEditorUtil.applyWorkspaceEdit(project, workspaceEdit)  | 
 | 194 | + | 
 | 195 | +        // No verification needed - just ensuring no exceptions  | 
 | 196 | +    }  | 
 | 197 | + | 
 | 198 | +    @Test  | 
 | 199 | +    fun `test applyWorkspaceEdit with invalid file`() {  | 
 | 200 | +        val uri = "file:///nonexistent.kt"  | 
 | 201 | +        val textEdit = TextEdit(Range(Position(0, 0), Position(0, 5)), "newText")  | 
 | 202 | + | 
 | 203 | +        every { virtualFileManager.findFileByUrl(uri) } returns null  | 
 | 204 | + | 
 | 205 | +        val workspaceEdit = WorkspaceEdit().apply {  | 
 | 206 | +            changes = mapOf(uri to listOf(textEdit))  | 
 | 207 | +        }  | 
 | 208 | + | 
 | 209 | +        // Execute - should not throw exception  | 
 | 210 | +        LspEditorUtil.applyWorkspaceEdit(project, workspaceEdit)  | 
 | 211 | +    }  | 
 | 212 | +}  | 
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