test_that("atomic vectors are escaped", { con <- simulate_dbi() expect_equal(sql_expr(2, con = con), sql("2.0")) expect_equal(sql_expr("x", con = con), sql("'x'")) }) test_that("user infix functions have % stripped", { con <- simulate_dbi() expect_equal(sql_expr(x %like% y, con = con), sql("x LIKE y")) }) test_that("string function names are not quoted", { con <- simulate_dbi() f <- "foo" expect_equal(sql_expr((!!f)(), con = con), sql("FOO()")) }) test_that("correct number of parens", { con <- simulate_dbi() expect_equal(sql_expr((1L), con = con), sql("(1)")) })
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