Merge lp:~chipaca/ubuntu-push/whoopsie-whoopsie-whoopsie into lp:ubuntu-push/automatic

[John Lenton]

Loop whoopsie_identifier_generate until it starts working.

Loop whoopsie_identifier_generate until it starts working.

[Samuele Pedroni (pedronis)]

looks good, given the behavior you are seeing I would even increase the sleep to 0.5s or 1s

review: Approve

[lp:~chipaca/ubuntu-push/whoopsie-whoopsie-whoopsie]

133. By John Lenton on 2014-04-18

sleep a bit longer

=== modified file 'client/client_test.go'
--- client/client_test.go	2014-04-16 18:09:47 +0000
+++ client/client_test.go	2014-04-18 11:28:27 +0000
@@ -177,7 +177,7 @@
 	c.Check(cli.idder, IsNil)
 	err := cli.configure()
 	c.Assert(err, IsNil)
-	c.Assert(cli.idder, DeepEquals, identifier.New())
+	c.Assert(cli.idder, FitsTypeOf, identifier.New())
 }
 
 func (cs *clientSuite) TestConfigureSetsUpEndpoints(c *C) {

=== modified file 'whoopsie/identifier/identifier.go'
--- whoopsie/identifier/identifier.go	2014-02-21 16:17:28 +0000
+++ whoopsie/identifier/identifier.go	2014-04-18 11:28:27 +0000
@@ -27,6 +27,7 @@
 import "C"
 import "unsafe"
 import "errors"
+import "time"
 
 // an Id knows how to generate itself, and how to stringify itself.
 type Id interface {
@@ -36,12 +37,17 @@
 
 // Identifier is the default Id implementation.
 type Identifier struct {
-	value string
+	value     string
+	generator func(**C.char, **C.GError)
+}
+
+func generator(csp **C.char, errp **C.GError) {
+	C.whoopsie_identifier_generate(csp, errp)
 }
 
 // New creates an Identifier, but does not call Generate() on it.
 func New() Id {
-	return &Identifier{}
+	return &Identifier{generator: generator}
 }
 
 // Generate makes the Identifier create the identifier itself.
@@ -49,8 +55,18 @@
 	var gerr *C.GError
 	var cs *C.char
 	defer C.g_free((C.gpointer)(unsafe.Pointer(cs)))
-	C.whoopsie_identifier_generate(&cs, &gerr)
-
+
+	for i := 0; i < 200; i++ {
+		id.generator(&cs, &gerr)
+
+		if cs != nil || gerr != nil {
+			goto SuccessMaybe
+		}
+		time.Sleep(600 * time.Millisecond)
+	}
+	return errors.New("whoopsie_identifier_generate still bad after 2m; giving up")
+
+SuccessMaybe:
 	if gerr != nil {
 		return errors.New(C.GoString((*C.char)(gerr.message)))
 	} else {

=== modified file 'whoopsie/identifier/identifier_test.go'
--- whoopsie/identifier/identifier_test.go	2014-01-15 15:51:50 +0000
+++ whoopsie/identifier/identifier_test.go	2014-04-18 11:28:27 +0000
@@ -41,3 +41,18 @@
 func (s *IdentifierSuite) TestIdentifierInterface(c *C) {
 	_ = []Id{New()}
 }
+
+// TestFailure checks that Identifier survives whoopsie shenanigans
+func (s *IdentifierSuite) TestIdentifierSurvivesShenanigans(c *C) {
+	count := 0
+	// using _Ctype* as a workaround for gocheck also having a C
+	gen := func(csp **_Ctype_char, errp **_Ctype_GError) {
+		count++
+		if count > 3 {
+			generator(csp, errp)
+		}
+	}
+	id := &Identifier{generator: gen}
+	id.Generate()
+	c.Check(id.String(), HasLen, 128)
+}