{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/124353"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/124353","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Understanding and improving the fidelity of local developer testing for cloud-based software","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms","abstract_has_math":false,"creators":["Mazhar, Anna"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Computer Science","degree_department":null,"school":null,"contributors":["Xu, Tianyin"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024-05","date_published":"2024-05","updated_at":"2026-07-22T22:25:00Z","subjects":["Cloud-based Software Testing","Emulators","Root Cause Analysis","Azure And Aws Cloud Services","Api Discrepancies","Local Testing","Deployment Safety","Software Quality Assurance."],"languages":["en","eng"],"rights":["Copyright 2024 Anna Mazhar"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/124353","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Xu, Tianyin"]},{"key":"dc:creator","label":"Author","values":["Mazhar, Anna"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2024-05","2024-04-26"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Computer Science"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Cloud-based Software Testing","Emulators","Root Cause Analysis","Azure And Aws Cloud Services","Api Discrepancies","Local Testing","Deployment Safety","Software Quality Assurance."]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2024 Anna Mazhar"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/124353"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms","The student, Anna Mazhar, accepted the attached license on 2024-04-19 at 18:05.","The student, Anna Mazhar, submitted this Thesis for approval on 2024-04-19 at 18:28.","This Thesis was approved for publication on 2024-04-26 at 15:55.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20518 on 2024-09-16 at 00:35:40","Modern software projects have been progressing towards a cloud-based, serverless programming model, where software applications use cloud services as important components. Such cloud-based programming practice greatly simplifies software development by harvesting cloud benefits (e.g., high availability and elasticity). However, it imposes significant challenges for software testing and analysis, due to the opaqueness of cloud backends and the monetary cost of invoking cloud services for continuous integration and deployment. As a result, software developers commonly use cloud emulators for offline development and testing, before online testing and deployment. This thesis presents a systematic analysis of cloud emulators from the perspective of cloud-based software testing. Our goal is to (1) understand the discrepancies introduced by cloud emulation with regard to software quality assurance and deployment safety and (2) address inevitable gaps between emulated and real cloud services. The analysis results are concerning. Among 255 APIs of five cloud services from Azure and Amazon Web Services (AWS), we detected discrepant behavior between the emulated and real services in 94 (37%) of the APIs. These discrepancies lead to inconsistent testing results, threatening deployment safety, introducing false alarms, and creating debuggability issues. The root causes are diverse, including accidental implementation defects and essential emulation challenges. We discuss potential solutions and develop a practical mitigation technique to address discrepancies of cloud emulators for software testing."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Understanding and improving the fidelity of local developer testing for cloud-based software"]}]}],"canonical_facts":{"dc:contributor":["Xu, Tianyin"],"dc:creator":["Mazhar, Anna"],"dc:date":["2024-05","2024-04-26"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms","The student, Anna Mazhar, accepted the attached license on 2024-04-19 at 18:05.","The student, Anna Mazhar, submitted this Thesis for approval on 2024-04-19 at 18:28.","This Thesis was approved for publication on 2024-04-26 at 15:55.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20518 on 2024-09-16 at 00:35:40","Modern software projects have been progressing towards a cloud-based, serverless programming model, where software applications use cloud services as important components. Such cloud-based programming practice greatly simplifies software development by harvesting cloud benefits (e.g., high availability and elasticity). However, it imposes significant challenges for software testing and analysis, due to the opaqueness of cloud backends and the monetary cost of invoking cloud services for continuous integration and deployment. As a result, software developers commonly use cloud emulators for offline development and testing, before online testing and deployment. This thesis presents a systematic analysis of cloud emulators from the perspective of cloud-based software testing. Our goal is to (1) understand the discrepancies introduced by cloud emulation with regard to software quality assurance and deployment safety and (2) address inevitable gaps between emulated and real cloud services. The analysis results are concerning. Among 255 APIs of five cloud services from Azure and Amazon Web Services (AWS), we detected discrepant behavior between the emulated and real services in 94 (37%) of the APIs. These discrepancies lead to inconsistent testing results, threatening deployment safety, introducing false alarms, and creating debuggability issues. The root causes are diverse, including accidental implementation defects and essential emulation challenges. We discuss potential solutions and develop a practical mitigation technique to address discrepancies of cloud emulators for software testing."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/124353"],"dc:language":["en","eng"],"dc:rights":["Copyright 2024 Anna Mazhar"],"dc:subject":["Cloud-based Software Testing","Emulators","Root Cause Analysis","Azure And Aws Cloud Services","Api Discrepancies","Local Testing","Deployment Safety","Software Quality Assurance."],"dc:title":["Understanding and improving the fidelity of local developer testing for cloud-based software"],"dc:type":["text"],"thesis:degree_discipline":["Computer Science"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:00Z"}