chore: fix regexp when removing platforms section

When removing platforms section, fix the regexp, so the removal procedure will keep the file the same as before the platform section was added. Currently, after removing the platform section, the file had additional empty lines inside it.

Author: rosen-vladimirov

lib/services/cocoapods-platform-manager.ts

@@ -26,7 +26,7 @@ export class CocoaPodsPlatformManager implements ICocoaPodsPlatformManager {
 			const allPodfiles = projectPodfileContent.match(podfileContentRegExp) || [];
 			const selectedPlatformData = this.selectPlatformDataFromProjectPodfile(allPodfiles);
 			const newPlatformSection = selectedPlatformData ? this.buildPlatformSection(selectedPlatformData) : "";
-			const regExp = new RegExp(`${platformSectionData.platformSectionContent}`, "mg");
+			const regExp = new RegExp(`\\r?\\n${platformSectionData.platformSectionContent}\\r?\\n`, "mg");
 			projectPodfileContent = projectPodfileContent.replace(regExp, newPlatformSection);
 		}
 

test/ios-project-service.ts

@@ -386,10 +386,10 @@ describe("Cocoapods support", () => {
 
 			projectData.podfilePath = basePodfilePath;
 
-			cocoapodsService.applyPodfileToProject(basePodfileModuleName, basePodfilePath, projectData, iOSProjectService.getPlatformData(projectData).projectRoot);
+			await cocoapodsService.applyPodfileToProject(basePodfileModuleName, basePodfilePath, projectData, iOSProjectService.getPlatformData(projectData).projectRoot);
 
 			const projectPodfilePath = path.join(platformsFolderPath, "Podfile");
-			assert.isTrue(fs.exists(projectPodfilePath));
+			assert.isTrue(fs.exists(projectPodfilePath), `File ${projectPodfilePath} must exist as we have already applied Podfile to it.`);
 
 			const actualProjectPodfileContent = fs.readText(projectPodfilePath);
 			const expectedPluginPodfileContent = ["source 'https://github.com/CocoaPods/Specs.git'", "# platform :ios, '8.1'", "pod 'GoogleMaps'"].join("\n");
@@ -410,8 +410,8 @@ describe("Cocoapods support", () => {
 
 			fs.deleteFile(basePodfilePath);
 
-			cocoapodsService.applyPodfileToProject(basePodfileModuleName, basePodfilePath, projectData, iOSProjectService.getPlatformData(projectData).projectRoot);
-			assert.isFalse(fs.exists(projectPodfilePath));
+			await cocoapodsService.applyPodfileToProject(basePodfileModuleName, basePodfilePath, projectData, iOSProjectService.getPlatformData(projectData).projectRoot);
+			assert.isFalse(fs.exists(projectPodfilePath), `The projectPodfilePath (${projectPodfilePath}) must not exist when all Podfiles have been deleted and project is prepared again. (i.e. CLI should delete the project Podfile in this case)`);
 		});
 
 		it("adds plugin with Podfile", async () => {