The phrase "didst tests" can be replaced with numerous synonyms, depending on the context. For example, if the phrase refers to taking exams or assessments to measure one's knowledge, "didst tests" can be replaced with "completed evaluations," "took quizzes," or "participated in assessments." If the phrase refers to conducting experiments or trials, synonyms could include "performed trials," "ran experiments," or "conducted research." Alternatively, if the context indicates that the phrase refers to challenging or questioning oneself or someone else, synonyms may include "posed challenges," "presented obstacles," or "asked probing questions." Ultimately, the appropriate synonym for "didst tests" will depend on the specific meaning intended within the given context.