Fix incorrect end range calculation in stub text document

Author: darkriszty

test/stubs/markdownTextDocumentStub.ts

@@ -1,5 +1,5 @@
 import * as vscode from "vscode";
-import * as os from "os";
+import { EOL } from "os";
 import { TextLineStub } from "./textLineStub";
 
 export class MarkdownTextDocumentStub implements vscode.TextDocument {
@@ -24,30 +24,30 @@ export class MarkdownTextDocumentStub implements vscode.TextDocument {
     }
 
     getFullRange(): vscode.Range {
-        return this.getRangeForLines(0, this._lines.length);
+        return this.getRangeForLines(0, this._lines.length - 1);
     }
 
     getRangeForLines(startLine: number, endLine: number): vscode.Range {
         return new vscode.Range(
             new vscode.Position(startLine, 0),
-            new vscode.Position(endLine, this._lines[endLine - 1].length)
+            new vscode.Position(endLine, this._lines[endLine].length)
         );
     }
 
     lineAt(param: number): vscode.TextLine;
     lineAt(param: vscode.Position): vscode.TextLine;
     lineAt(param: any) {
         const lineNumber = param * 1;
-        const lineRange = this.getRangeForLines(lineNumber, lineNumber + 1);
+        const lineRange = this.getRangeForLines(lineNumber, lineNumber);
         return new TextLineStub(lineNumber, this._lines[lineNumber], lineRange);
     }
 
     getText(range?: vscode.Range): string {
         range = range == null ? this.getFullRange() : range;
         let buffer: string = "";
-        for (let row = range.start.line; row < range.end.line; row++) {
+        for (let row = range.start.line; row <= range.end.line; row++) {
             const isFirstRow = row == range.start.line;
-            const isLastRow = row == range.end.line - 1;
+            const isLastRow = row == range.end.line;
             const line = this._lines[row];
 
             if (isFirstRow)
@@ -60,7 +60,7 @@ export class MarkdownTextDocumentStub implements vscode.TextDocument {
                 buffer += line.substring(0, range.end.character);
 
             if (!isLastRow)
-                buffer += os.EOL;
+                buffer += EOL;
         }
         return buffer;
     }