How to use TN method of internal_test Package

...12		BeforeEach(func() {13			n1, n2, n3 = N(), N(), N()14			childNode = N()15			treeNodes = TreeNodes{16				TN(n1,17					TN(childNode),18				),19				TN(n2),20				TN(n3),21			}22		})23		Describe("treenodes.Nodes", func() {24			It("returns the root node of each node in the treenodes slice", func() {25				Ω(treeNodes.Nodes()).Should(Equal(Nodes{n1, n2, n3}))26			})27		})28		Describe("treenodes.WithId", func() {29			Context("when a tree with a root node with a matching id is found", func() {30				It("returns that tree", func() {31					Ω(treeNodes.WithID(n2.ID)).Should(Equal(TN(n2)))32				})33			})34			Context("when the id matches a child node's id", func() {35				It("returns an empty tree as children are not included in the match", func() {36					Ω(treeNodes.WithID(childNode.ID)).Should(BeNil())37				})38			})39			Context("when the id cannot be found", func() {40				It("returns an empty tree", func() {41					Ω(treeNodes.WithID(1000000)).Should(BeZero()) //pretty sure it's a safe bet we don't ever get to 1_000_000 nodes in this test ;)42				})43			})44		})45		Describe("AppendChild", func() {46			It("appends the passed in child treenode to the parent's children and sets the child's parent", func() {47				existingChildNode1 := N()48				existingChildNode2 := N()49				treeNode := TN(N(),50					TN(existingChildNode1),51					TN(existingChildNode2),52				)53				newChildNode := N()54				childTreeNode := &TreeNode{Node: newChildNode}55				treeNode.AppendChild(childTreeNode)56				Ω(treeNode.Children.Nodes()).Should(Equal(Nodes{existingChildNode1, existingChildNode2, newChildNode}))57				Ω(childTreeNode.Parent).Should(Equal(treeNode))58			})59		})60		Describe("ParentChain", func() {61			It("returns the chain of parent nodes", func() {62				grandparent := N()63				parent := N()64				aunt := N()65				child := N()66				sibling := N()67				tree := TN(Node{}, TN(68					grandparent,69					TN(parent, TN(child), TN(sibling)),70					TN(aunt),71				))72				childTree := tree.Children[0].Children[0].Children[0]73				Ω(childTree.Node).Should(Equal(child))74				Ω(childTree.AncestorNodeChain()).Should(Equal(Nodes{grandparent, parent, child}))75			})76		})77	})78	Describe("GenerateSpecsFromTreeRoot", func() {79		var tree *TreeNode80		BeforeEach(func() {81			tree = &TreeNode{}82		})83		Context("when the tree is empty", func() {84			It("returns an empty set of tests", func() {85				Ω(internal.GenerateSpecsFromTreeRoot(tree)).Should(BeEmpty())86			})87		})88		Context("when the tree has no Its", func() {89			BeforeEach(func() {90				tree = TN(Node{},91					TN(N(ntBef)),92					TN(N(ntCon),93						TN(N(ntBef)),94						TN(N(ntAf)),95					),96					TN(N(ntCon),97						TN(N(ntCon),98							TN(N(ntBef)),99							TN(N(ntAf)),100						),101					),102					TN(N(ntAf)),103				)104			})105			It("returns an empty set of tests", func() {106				Ω(internal.GenerateSpecsFromTreeRoot(tree)).Should(BeEmpty())107			})108		})109		Context("when the tree has nodes in it", func() {110			var tests Specs111			BeforeEach(func() {112				tree = TN(Node{},113					TN(N(ntBef, "Bef #0")),114					TN(N(ntIt, "It #1")),115					TN(N(ntCon, "Container #1"),116						TN(N(ntBef, "Bef #1")),117						TN(N(ntAf, "Af #1")),118						TN(N(ntIt, "It #2")),119					),120					TN(N(ntCon, "Container #2"),121						TN(N(ntBef, "Bef #2")),122						TN(N(ntCon, "Nested Container"),123							TN(N(ntBef, "Bef #4")),124							TN(N(ntIt, "It #3")),125							TN(N(ntIt, "It #4")),126							TN(N(ntAf, "Af #2")),127						),128						TN(N(ntIt, "It #5")),129						TN(N(ntCon, "A Container With No Its"),130							TN(N(ntBef, "Bef #5")),131						),132						TN(N(ntAf, "Af #3")),133					),134					TN(N(ntIt, "It #6")),135					TN(N(ntAf, "Af #4")),136				)137				tests = internal.GenerateSpecsFromTreeRoot(tree)138			})139			It("constructs a flattened set of tests", func() {140				Ω(tests).Should(HaveLen(6))141				expectedTexts := [][]string{142					{"Bef #0", "It #1", "Af #4"},143					{"Bef #0", "Container #1", "Bef #1", "Af #1", "It #2", "Af #4"},144					{"Bef #0", "Container #2", "Bef #2", "Nested Container", "Bef #4", "It #3", "Af #2", "Af #3", "Af #4"},145					{"Bef #0", "Container #2", "Bef #2", "Nested Container", "Bef #4", "It #4", "Af #2", "Af #3", "Af #4"},146					{"Bef #0", "Container #2", "Bef #2", "It #5", "Af #3", "Af #4"},147					{"Bef #0", "It #6", "Af #4"},148				}149				for i, expectedText := range expectedTexts {...

...60	}61	return node62}63// convenience helper to quickly make tree nodes64func TN(node Node, children ...*TreeNode) *TreeNode {65	tn := &TreeNode{Node: node}66	for _, child := range children {67		tn.AppendChild(child)68	}69	return tn70}71// convenience helper to quickly make specs72func S(nodes ...Node) Spec {73	return Spec{Nodes: nodes}74}75// convenience helper to quickly make code locations76func CL(options ...interface{}) types.CodeLocation {77	cl = types.NewCodeLocation(0)78	for _, option := range options {...

1import (2func main() {3    fmt.Println(internal_test.TN())4}5func TN() string {6}7func TN() string {8}9func TN() string {10}11func TN() string {12}

1import (2func main() {3	fmt.Println("Hello, playground")4	fmt.Println(testpackage.TN())5}6import (7func main() {8	fmt.Println("Hello, playground")9	fmt.Println(internal_test.TN())10}11func (s *SomeStruct) SomeMethod(someString string) string {12}13func (s *SomeStruct) SomeOtherMethod() string {14    return s.SomeMethod(someString)15}

1import (2func main() {3    fmt.Println("Hello, playground")4    tn := internal_test.TN{}5    tn.Test()6}7import (8type TN struct {9}10func (tn *TN) Test() {11    fmt.Println("Test")12}13Error: “internal_test.go:15:3: tn.Test undefined (type *TN has no field or method Test)”14Can you please tell me how to make “test()” method private to the package?15import (16type TN struct {17}18func (tn *TN) Test() {19    fmt.Println("Test")20}

1import (2func main() {3	fmt.Println("Hello, playground")4	internal_test.TN()5}6import (7func TN() {8	fmt.Println("Hello, playground")9}10import (11func init() {12	fmt.Println("Hello, playground")13}

1import (2func main() {3	fmt.Println("Hello, playground")4	testpkg2.Testpkg2()5}6import (7func Testpkg2() {8	fmt.Println("Testpkg2")9	internal_test.TN()10}11import (12func TN() {13	fmt.Println("TN")14}15	/usr/local/go/src/testpkg/internal_test (from $GOROOT)16	/Users/username/work/go/src/testpkg/internal_test (from $GOPATH)17import (18func main() {19    fmt.Println("Starting server on port 8080")20    http.Handle("/", http.FileServer(http.Dir("./public/")))21    http.ListenAndServe(":8080", nil)22}

1import (2func main() {3    t := internal_test.NewTest()4    t.TN()5    t2 := internal_test.NewTest()6    t2.TN()7    t3 := internal_test.NewTest()8    t3.TN()9    t4 := internal_test.NewTest()10    t4.TN()11    t5 := internal_test.NewTest()12    t5.TN()13    t6 := internal_test.NewTest()14    t6.TN()15    t7 := internal_test.NewTest()16    t7.TN()17    t8 := internal_test.NewTest()18    t8.TN()19    t9 := internal_test.NewTest()20    t9.TN()21    t10 := internal_test.NewTest()22    t10.TN()23    t11 := internal_test.NewTest()24    t11.TN()25    t12 := internal_test.NewTest()26    t12.TN()27    t13 := internal_test.NewTest()28    t13.TN()29    t14 := internal_test.NewTest()30    t14.TN()31    t15 := internal_test.NewTest()32    t15.TN()33    t16 := internal_test.NewTest()34    t16.TN()35    t17 := internal_test.NewTest()

1import (2func main() {3        fmt.Println("Hello world")4        internal_test.TN()5}6import (7func TN() {8        fmt.Println("Hello world")9}10import (11func main() {12        fmt.Println("Hello world")13        internal_test.TN()14}