+proc assert {condition} {
+ if {![uplevel 1 expr $condition]} {
+ puts "!! ERROR\nExpected '$value' to evaluate to true"
+ error "assertion"
+ }
+}
+
+proc assert_match {pattern value} {
+ if {![string match $pattern $value]} {
+ puts "!! ERROR\nExpected '$value' to match '$pattern'"
+ error "assertion"
+ }
+}
+
+proc assert_equal {expected value} {
+ if {$expected ne $value} {
+ puts "!! ERROR\nExpected '$value' to be equal to '$expected'"
+ error "assertion"
+ }
+}
+
+proc assert_error {pattern code} {
+ if {[catch {uplevel 1 $code} error]} {
+ assert_match $pattern $error
+ } else {
+ puts "!! ERROR\nExpected an error but nothing was catched"
+ error "assertion"
+ }
+}
+
+proc assert_encoding {enc key} {
+ # Swapped out values don't have an encoding, so make sure that
+ # the value is swapped in before checking the encoding.
+ set dbg [r debug object $key]
+ while {[string match "* swapped at:*" $dbg]} {
+ r debug swapin $key
+ set dbg [r debug object $key]
+ }
+ assert_match "* encoding:$enc *" $dbg
+}
+
+proc assert_type {type key} {
+ assert_equal $type [r type $key]
+}
+
+proc test {name code {okpattern notspecified}} {
+ # abort if tagged with a tag to deny
+ foreach tag $::denytags {
+ if {[lsearch $::tags $tag] >= 0} {
+ return
+ }
+ }
+
+ # check if tagged with at least 1 tag to allow when there *is* a list
+ # of tags to allow, because default policy is to run everything
+ if {[llength $::allowtags] > 0} {
+ set matched 0
+ foreach tag $::allowtags {
+ if {[lsearch $::tags $tag] >= 0} {
+ incr matched
+ }
+ }
+ if {$matched < 1} {
+ return
+ }
+ }
+