replace multiple space into single space on markdown text in hover

.vscode/launch.json

@@ -10,7 +10,8 @@
       "sourceMaps": true,
       "outFiles": ["${workspaceRoot}/out/server/**/*.ts"],
       "protocol": "inspector",
-      "trace": true
+      "trace": true,
+      "preLaunchTask": "watch typescript",
     },
     // A launch configuration that compiles the server and runs mocha unit tests
     {

src/languageservice/services/yamlHover.ts

@@ -5,7 +5,7 @@
  *--------------------------------------------------------------------------------------------*/
 'use strict';
 
-import { Hover, MarkupContent, Position, Range } from 'vscode-languageserver-types';
+import { Hover, MarkupContent, MarkupKind, Position, Range } from 'vscode-languageserver-types';
 import { matchOffsetToDocument } from '../utils/arrUtils';
 import { LanguageSettings } from '../yamlLanguageService';
 import { YAMLSchemaService } from './yamlSchemaService';
@@ -23,6 +23,7 @@ import { ASTNode } from 'vscode-json-languageservice';
 
 export class YAMLHover {
   private shouldHover: boolean;
+  private indentation: string;
   private schemaService: YAMLSchemaService;
 
   constructor(schemaService: YAMLSchemaService, private readonly telemetry: Telemetry) {
@@ -33,6 +34,7 @@ export class YAMLHover {
   configure(languageSettings: LanguageSettings): void {
     if (languageSettings) {
       this.shouldHover = languageSettings.hover;
+      this.indentation = languageSettings.indentation;
     }
   }
 
@@ -86,9 +88,10 @@ export class YAMLHover {
     );
 
     const createHover = (contents: string): Hover => {
+      const regex = new RegExp(this.indentation, 'g');
       const markupContent: MarkupContent = {
-        kind: 'markdown',
-        value: contents,
+        kind: MarkupKind.Markdown,
+        value: contents.replace(regex, ' '),
       };
       const result: Hover = {
         contents: markupContent,

test/hover.test.ts

@@ -20,10 +20,13 @@ describe('Hover Tests', () => {
   let telemetry: TestTelemetry;
 
   before(() => {
-    languageSettingsSetup = new ServiceSetup().withHover().withSchemaFileMatch({
-      uri: 'http://google.com',
-      fileMatch: ['bad-schema.yaml'],
-    });
+    languageSettingsSetup = new ServiceSetup()
+      .withHover()
+      .withIndentation('  ')
+      .withSchemaFileMatch({
+        uri: 'http://google.com',
+        fileMatch: ['bad-schema.yaml'],
+      });
     const {
       languageService: langService,
       languageHandler: langHandler,
@@ -510,6 +513,28 @@ users:
       );
     });
 
+    it('hover on value and its description has multiline, indentationa and special string', async () => {
+      //https://github.com/redhat-developer/vscode-yaml/issues/886
+      languageService.addSchema(SCHEMA_ID, {
+        type: 'object',
+        title: 'Person',
+        properties: {
+          firstName: {
+            type: 'string',
+            description: 'At the top level my_var is shown properly.\n\n    Issue with my_var2\n      here my_var3',
+          },
+        },
+      });
+      const content = 'fi|r|stName: '; // len: 12, pos: 1
+      const result = await parseSetup(content);
+
+      assert.strictEqual(MarkupContent.is(result.contents), true);
+      assert.strictEqual(
+        (result.contents as MarkupContent).value,
+        `#### Person\n\nAt the top level my\\_var is shown properly\\.\n\n  Issue with my\\_var2\n\n   here my\\_var3\n\nSource: [${SCHEMA_ID}](file:///${SCHEMA_ID})`
+      );
+    });
+
     it('Hover works on examples', async () => {
       languageService.addSchema(SCHEMA_ID, {
         type: 'object',

test/integration.test.ts

@@ -22,6 +22,7 @@ describe('Kubernetes Integration Tests', () => {
     const fileMatch = ['*.yml', '*.yaml'];
     languageSettingsSetup = new ServiceSetup()
       .withHover()
+      .withIndentation('  ')
       .withValidate()
       .withCompletion()
       .withSchemaFileMatch({
@@ -318,8 +319,8 @@ describe('Kubernetes Integration Tests', () => {
     it('Hover on incomplete kubernetes document', async () => {
       const content = 'apiVersion: v1\nmetadata:\n  name: test\nkind: Deployment\nspec:\n   ';
       const hover = await parseSetup(content, 58);
-      assert.strictEqual(MarkupContent.is(hover.contents), true);
-      assert.strictEqual((hover.contents as MarkupContent).value, '');
+      assert.strictEqual(MarkupContent.is(hover?.contents), true);
+      assert.strictEqual((hover?.contents as MarkupContent).value, '');
     });
   });
 });

test/multipleDocuments.test.ts

@@ -29,6 +29,7 @@ describe('Multiple Documents Validation Tests', () => {
     const fileMatch = ['*.yml', '*.yaml'];
     languageSettingsSetup = new ServiceSetup()
       .withHover()
+      .withIndentation('  ')
       .withValidate()
       .withSchemaFileMatch({
         fileMatch,