refactor: Break core package into multiple packages under config/endpoint (#759)

* refactor: Partially break core package into dns, result and ssh packages

* refactor: Move core package to config/endpoint

* refactor: Fix warning about overlapping imported package name with endpoint variable

* refactor: Rename EndpointStatus to Status

* refactor: Merge result pkg back into endpoint pkg, because it makes more sense

* refactor: Rename parameter r to result in Condition.evaluate

* refactor: Rename parameter r to result

* refactor: Revert accidental change to endpoint.TypeDNS

* refactor: Rename parameter r to result

* refactor: Merge util package into endpoint package

* refactor: Rename parameter r to result

config/endpoint/key_test.go

@@ -0,0 +1,36 @@
+package endpoint
+
+import "testing"
+
+func TestConvertGroupAndEndpointNameToKey(t *testing.T) {
+	type Scenario struct {
+		GroupName      string
+		EndpointName   string
+		ExpectedOutput string
+	}
+	scenarios := []Scenario{
+		{
+			GroupName:      "Core",
+			EndpointName:   "Front End",
+			ExpectedOutput: "core_front-end",
+		},
+		{
+			GroupName:      "Load balancers",
+			EndpointName:   "us-west-2",
+			ExpectedOutput: "load-balancers_us-west-2",
+		},
+		{
+			GroupName:      "a/b test",
+			EndpointName:   "a",
+			ExpectedOutput: "a-b-test_a",
+		},
+	}
+	for _, scenario := range scenarios {
+		t.Run(scenario.ExpectedOutput, func(t *testing.T) {
+			output := ConvertGroupAndEndpointNameToKey(scenario.GroupName, scenario.EndpointName)
+			if output != scenario.ExpectedOutput {
+				t.Errorf("expected '%s', got '%s'", scenario.ExpectedOutput, output)
+			}
+		})
+	}
+}