Most EFL schools, both government-run and private, use materials developed based on the curriculum developed by the Ministry of Education. The Ministry of Education in Iran started to update English textbooks for junior and senior high schools to enhance students’ communicative competence. To achieve this, there is a need for changes both in methodology and content of the textbooks in assessment methods. This study aimed to investigate whether teachers’ tests align with the changes in textbooks or assess students' knowledge of grammar and vocabulary, regardless of their communicative competence. A mixed-methods design was employed, combining quantitative data collected through questionnaires, teacher-made tests, textbooks, and qualitative interview data to provide a comprehensive understanding of the match. Thirty Iranian English teachers from different provinces participated in the study and 100 teacher-made tests were compared with the content and purpose of the updated textbooks. The results analyzed through chi-square test and thematic analysis showed no match between the theory of the tests and the textbooks and revealed that teachers' attitudes towards change of assessment tools contribute to the development of communicative skills.
