Handle new lines in CA provided as string

[Finishes #146384923] User should be able to provide contents of CA instead of file reference (github CLI issue #4)

config/config.go

@@ -5,6 +5,7 @@ import (
 	"io/ioutil"
 	"os"
 	"path"
+	"strings"
 )
 
 const AuthClient = "credhub_cli"
@@ -66,7 +67,7 @@ func (cfg *Config) UpdateTrustedCAs(caCerts []string) error {
 		_, err := os.Stat(cert)
 
 		if err != nil {
-			certs = append(certs, string(cert))
+			certs = append(certs, strings.Replace(cert, "\\n", "\n", -1))
 		} else {
 			certContents, err := ioutil.ReadFile(cert)
 

config/config_test.go

@@ -59,6 +59,16 @@ var _ = Describe("Config", func() {
 			Expect(cfg.CaCerts).To(ConsistOf([]string{string(ca1), ca2}))
 		})
 
+		It("handles new lines in certificate strings", func() {
+			caWithNewLines := `-----BEGIN CERTIFICATE-----\nFAKE CERTIFICATE CONTENTS\n-----END CERTIFICATE-----`
+			expectedCa := "-----BEGIN CERTIFICATE-----\nFAKE CERTIFICATE CONTENTS\n-----END CERTIFICATE-----"
+
+			err := cfg.UpdateTrustedCAs([]string{caWithNewLines})
+
+			Expect(err).To(BeNil())
+			Expect(cfg.CaCerts).To(ConsistOf([]string{expectedCa}))
+		})
+
 		It("returns an error if a file can't be read", func() {
 			invalidCaFile, err := ioutil.TempFile("", "no-read-access")
 			Expect(err).To(BeNil())