Add more @test tests (#22609)

* Add more passing `@test` tests

* Remove unused variable

* Add tests for `@test a ≈ b atol=ε` syntax

base/test.jl

@@ -318,7 +318,6 @@ end
 # evaluate each term in the comparison individually so the results
 # can be displayed nicely.
 function get_test_result(ex)
-    orig_ex = Expr(:inert, ex)
     # Normalize non-dot comparison operator calls to :comparison expressions
     is_splat = x -> isa(x, Expr) && x.head == :...
     if isa(ex, Expr) && ex.head == :call && length(ex.args) == 3 &&

test/test.jl

@@ -4,8 +4,19 @@
 @test true
 @test 1 == 1
 @test 1 != 2
+@test ==(1, 1)
+@test ==((1, 1)...)
+@test 1 ≈ 2 atol=1
 @test strip("\t  hi   \n") == "hi"
 @test strip("\t  this should fail   \n") != "hi"
+@test isequal(1, 1)
+@test isapprox(1, 1, atol=0.1)
+@test isapprox(1, 1; atol=0.1)
+@test isapprox(1, 1; [(:atol, 0)]...)
+
+# @test keyword precedence: post-semicolon keyword, suffix keyword, pre-semicolon keyword
+@test isapprox(1, 2, atol=0) atol=1
+@test isapprox(1, 3, atol=0; atol=2) atol=1
 
 # @test should only evaluate the arguments once
 let g = Int[], f = (x) -> (push!(g, x); x)