GoLand live template for the test functions.

GOLAND_TEST_LIVE_TEMPLATE.go

func Test$NAME$(t *testing.T) {
	type args struct {
		$ARGS$
	}
	type want struct {
		$WANT$
	}

	test := func(args args, want want) func(t *testing.T) {
		return func(t *testing.T) {
			t.Helper()

			$TEST_FUNC$
		}
	}

	$OTHER$

	tests := []struct {
		name string
		args args
		want want
	}{
		{$END$},
	}

	for _, tt := range tests {
		tt := tt
		t.Run(tt.name, test(tt.args, tt.want))
	}
}

To add this template: Preferences -> Editor -> Live Templates -> Go.