Error in `get_connection("spark")`: Could not create connection. Are some environment variables missing?

# Database test: DATABRICKS/SPARK Copies minimal mock CDM with copyCdmTo, runs pipeline, checks files.
skip_if(tolower(Sys.getenv("SKIP_DATABASE_TESTING", "")) == "true", "SKIP_DATABASE_TESTING is set")
writeSchema <- c(schema = "pregnancy_test_cdm", prefix = prefix())
# cdm_src <- mockPregnancyCdm(fullVocab = FALSE)
dir.create(outputFolder, recursive = TRUE, showWarnings = FALSE)