Add DeepCopy method for E2EConfig

Signed-off-by: Stefan Büringer buringerst@vmware.com

test/framework/clusterctl/e2e_config.go

@@ -248,6 +248,31 @@ type Files struct {
 	TargetName string `json:"targetName,omitempty"`
 }
 
+func (c *E2EConfig) DeepCopy() *E2EConfig {
+	if c == nil {
+		return nil
+	}
+	out := new(E2EConfig)
+	out.ManagementClusterName = c.ManagementClusterName
+	out.Images = make([]ContainerImage, len(c.Images))
+	for i, image := range c.Images {
+		out.Images[i] = image
+	}
+	out.Providers = make([]ProviderConfig, len(c.Providers))
+	for i, image := range c.Providers {
+		out.Providers[i] = image
+	}
+	out.Variables = make(map[string]string, len(c.Variables))
+	for key, val := range c.Variables {
+		out.Variables[key] = val
+	}
+	out.Intervals = make(map[string][]string, len(c.Intervals))
+	for key, val := range c.Intervals {
+		out.Intervals[key] = val
+	}
+	return out
+}
+
 // ResolveReleases converts release markers to release version.
 func (c *E2EConfig) ResolveReleases(ctx context.Context) error {
 	for i := range c.Providers {

test/framework/clusterctl/e2e_config_test.go

@@ -88,3 +88,74 @@ func Test_resolveReleaseMarker(t *testing.T) {
 		})
 	}
 }
+
+func Test_E2EConfig_DeepCopy(t *testing.T) {
+	g := NewWithT(t)
+
+	config1 := E2EConfig{
+		ManagementClusterName: "config1-cluster-name",
+		Images: []ContainerImage{
+			{
+				Name: "config1-image",
+			},
+		},
+		Providers: []ProviderConfig{
+			{
+				Name: "config1-provider",
+			},
+		},
+		Variables: map[string]string{
+			"config1-variable": "config1-variable-value",
+		},
+		Intervals: map[string][]string{
+			"config1-interval": {"2m", "10s"},
+		},
+	}
+
+	config2 := config1.DeepCopy()
+
+	// Verify everything was copied from config1
+	g.Expect(config2.ManagementClusterName).To(Equal("config1-cluster-name"))
+	g.Expect(config2.Images).To(Equal([]ContainerImage{
+		{
+			Name: "config1-image",
+		},
+	}))
+	g.Expect(config2.Providers).To(Equal([]ProviderConfig{
+		{
+			Name: "config1-provider",
+		},
+	}))
+	g.Expect(config2.Variables).To(Equal(map[string]string{
+		"config1-variable": "config1-variable-value",
+	}))
+	g.Expect(config2.Intervals).To(Equal(map[string][]string{
+		"config1-interval": {"2m", "10s"},
+	}))
+
+	// Mutate config2
+	config2.ManagementClusterName = "config2-cluster-name"
+	config2.Images[0].Name = "config2-image"
+	config2.Providers[0].Name = "config2-provider"
+	config2.Variables["config2-variable"] = "config2-variable-value"
+	config2.Intervals["config2-interval"] = []string{"2m", "10s"}
+
+	// Validate config1 was not mutated
+	g.Expect(config1.ManagementClusterName).To(Equal("config1-cluster-name"))
+	g.Expect(config1.Images).To(Equal([]ContainerImage{
+		{
+			Name: "config1-image",
+		},
+	}))
+	g.Expect(config1.Providers).To(Equal([]ProviderConfig{
+		{
+			Name: "config1-provider",
+		},
+	}))
+	g.Expect(config1.Variables).To(Equal(map[string]string{
+		"config1-variable": "config1-variable-value",
+	}))
+	g.Expect(config1.Intervals).To(Equal(map[string][]string{
+		"config1-interval": {"2m", "10s"},
+	}))
+}