Some useful checkers.

testing/checkers/relop.go

+// Copyright 2013 Canonical Ltd.
+// Licensed under the AGPLv3, see LICENCE file for details.
+
+package checkers
+
+import (
+        "fmt"
+        "reflect"
+
+        . "launchpad.net/gocheck"
+)
+
+// GreaterThan checker
+
+type greaterThanChecker struct {
+        *CheckerInfo
+}
+
+var GreaterThan Checker = &greaterThanChecker{
+        &CheckerInfo{Name: "GreaterThan", Params: []string{"obtained", "expected"}},
+}
+
+func (checker *greaterThanChecker) Check(params []interface{}, names []string) (result bool, error string) {
+        defer func() {
+                if v := recover(); v != nil {
+                        result = false
+                        error = fmt.Sprint(v)
+                }
+        }()
+
+        p0value := reflect.ValueOf(params[0])
+        p1value := reflect.ValueOf(params[1])
+        switch p0value.Kind() {
+        case reflect.Int,
+                reflect.Int8,
+                reflect.Int16,
+                reflect.Int32,
+                reflect.Int64:
+                return p0value.Int() > p1value.Int(), ""
+        case reflect.Uint,
+                reflect.Uint8,
+                reflect.Uint16,
+                reflect.Uint32,
+                reflect.Uint64:
+                return p0value.Uint() > p1value.Uint(), ""
+        case reflect.Float32,
+                reflect.Float64:
+                return p0value.Float() > p1value.Float(), ""
+        default:
+        }
+        return false, fmt.Sprintf("obtained value %s:%#v not supported", p0value.Kind(), params[0])

[rog, 2013/06/19 11:19:05]

fmt.Sprintf("expected numeric type, received %T", p0value)

?

+}