Function TestAbsTraversalForExpr

traversal_for_expr_test.go:61–122

(t *testing.T)

}

func TestAbsTraversalForExpr(t *testing.T) {
	tests := []struct {
		Expr         Expression
		WantRootName string
	}{
		{
			asTraversalSupported{RootName: "foo"},
			"foo",
		},
		{
			asTraversalNotSupported{},
			"",
		},
		{
			asTraversalDeclined{},
			"",
		},
		{
			asTraversalWrappedDelegated{
				original: asTraversalSupported{RootName: "foo"},
			},
			"foo",
		},
		{
			asTraversalWrappedDelegated{
				original: asTraversalWrappedDelegated{
					original: asTraversalSupported{RootName: "foo"},
				},
			},
			"foo",
		},
	}

	for _, test := range tests {
		t.Run("", func(t *testing.T) {
			got, diags := AbsTraversalForExpr(test.Expr)
			switch {
			case got != nil:
				if test.WantRootName == "" {
					t.Fatalf("traversal was returned; want error")
				}
				if len(got) != 1 {
					t.Fatalf("wrong traversal length %d; want 1", len(got))
				}
				gotRoot, ok := got[0].(TraverseRoot)
				if !ok {
					t.Fatalf("first traversal step is %T; want hcl.TraverseRoot", got[0])
				}
				if gotRoot.Name != test.WantRootName {
					t.Errorf("wrong root name %q; want %q", gotRoot.Name, test.WantRootName)
				}
			default:
				if !diags.HasErrors() {
					t.Errorf("returned nil traversal without error diagnostics")
				}
				if test.WantRootName != "" {
					t.Errorf("traversal was not returned; want TraverseRoot(%q)", test.WantRootName)
				}