diff --git a/builder/amazon/common/artifact_test.go b/builder/amazon/common/artifact_test.go
index 28af553c7..ccca4fa0a 100644
--- a/builder/amazon/common/artifact_test.go
+++ b/builder/amazon/common/artifact_test.go
@@ -1,21 +1,15 @@
 package common
 
 import (
-	"cgl.tideland.biz/asserts"
 	"github.com/mitchellh/packer/packer"
 	"testing"
 )
 
 func TestArtifact_Impl(t *testing.T) {
-	assert := asserts.NewTestingAsserts(t, true)
-
-	var actual packer.Artifact
-	assert.Implementor(&Artifact{}, &actual, "should be an Artifact")
+	var _ packer.Artifact = new(Artifact)
 }
 
 func TestArtifactId(t *testing.T) {
-	assert := asserts.NewTestingAsserts(t, true)
-
 	expected := `east:foo,west:bar`
 
 	amis := make(map[string]string)
@@ -27,12 +21,12 @@ func TestArtifactId(t *testing.T) {
 	}
 
 	result := a.Id()
-	assert.Equal(result, expected, "should match output")
+	if result != expected {
+		t.Fatalf("bad: %s", result)
+	}
 }
 
 func TestArtifactString(t *testing.T) {
-	assert := asserts.NewTestingAsserts(t, true)
-
 	expected := `AMIs were created:
 
 east: foo
@@ -44,5 +38,7 @@ west: bar`
 
 	a := &Artifact{Amis: amis}
 	result := a.String()
-	assert.Equal(result, expected, "should match output")
+	if result != expected {
+		t.Fatalf("bad: %s", result)
+	}
 }
diff --git a/builder/amazon/common/block_device_test.go b/builder/amazon/common/block_device_test.go
index 0981816cf..2e671e3d6 100644
--- a/builder/amazon/common/block_device_test.go
+++ b/builder/amazon/common/block_device_test.go
@@ -1,14 +1,12 @@
 package common
 
 import (
-	"cgl.tideland.biz/asserts"
 	"github.com/mitchellh/goamz/ec2"
+	"reflect"
 	"testing"
 )
 
 func TestBlockDevice(t *testing.T) {
-	assert := asserts.NewTestingAsserts(t, true)
-
 	ec2Mapping := []ec2.BlockDeviceMapping{
 		ec2.BlockDeviceMapping{
 			DeviceName:          "/dev/sdb",
@@ -36,6 +34,11 @@ func TestBlockDevice(t *testing.T) {
 		LaunchMappings: []BlockDevice{blockDevice},
 	}
 
-	assert.Equal(ec2Mapping, blockDevices.BuildAMIDevices(), "should match output")
-	assert.Equal(ec2Mapping, blockDevices.BuildLaunchDevices(), "should match output")
+	if !reflect.DeepEqual(ec2Mapping, blockDevices.BuildAMIDevices()) {
+		t.Fatalf("bad: %#v", ec2Mapping)
+	}
+
+	if !reflect.DeepEqual(ec2Mapping, blockDevices.BuildLaunchDevices()) {
+		t.Fatalf("bad: %#v", ec2Mapping)
+	}
 }
diff --git a/builder/openstack/artifact_test.go b/builder/openstack/artifact_test.go
index 2fb4de928..313fea7cf 100644
--- a/builder/openstack/artifact_test.go
+++ b/builder/openstack/artifact_test.go
@@ -1,21 +1,15 @@
 package openstack
 
 import (
-	"cgl.tideland.biz/asserts"
 	"github.com/mitchellh/packer/packer"
 	"testing"
 )
 
 func TestArtifact_Impl(t *testing.T) {
-	assert := asserts.NewTestingAsserts(t, true)
-
-	var actual packer.Artifact
-	assert.Implementor(&Artifact{}, &actual, "should be an Artifact")
+	var _ packer.Artifact = new(Artifact)
 }
 
 func TestArtifactId(t *testing.T) {
-	assert := asserts.NewTestingAsserts(t, true)
-
 	expected := `b8cdf55b-c916-40bd-b190-389ec144c4ed`
 
 	a := &Artifact{
@@ -23,17 +17,19 @@ func TestArtifactId(t *testing.T) {
 	}
 
 	result := a.Id()
-	assert.Equal(result, expected, "should match output")
+	if result != expected {
+		t.Fatalf("bad: %s", result)
+	}
 }
 
 func TestArtifactString(t *testing.T) {
-	assert := asserts.NewTestingAsserts(t, true)
-
 	expected := "An image was created: b8cdf55b-c916-40bd-b190-389ec144c4ed"
 
 	a := &Artifact{
 		ImageId: "b8cdf55b-c916-40bd-b190-389ec144c4ed",
 	}
 	result := a.String()
-	assert.Equal(result, expected, "should match output")
+	if result != expected {
+		t.Fatalf("bad: %s", result)
+	}
 }