Add testing

Code-Style.md

@@ -18,6 +18,8 @@
   _or_ return an error defined (as public variable) in that package.
   Example: `other.Error("auth", "failed to do something important", originalError)`
 - Returned http errors must use `git.mstar.dev/mstar/goutils/webutils.ProblemDetails(StatusOnly)`.
+- Every function must either have a test or a doc comment explaining
+  why it doesn't have a test
 
 ## JS/TS
 

shared/fswrapper.go

@@ -14,6 +14,10 @@ type FSWrapper struct {
 	log     bool
 }
 
+// Compile time interface implementation assertion
+var _ fs.FS = &FSWrapper{}
+
+// No test, as no processing happens, only wrapping the arguments in a struct
 func NewFSWrapper(wraps fs.FS, appends string, logAccess bool) *FSWrapper {
 	return &FSWrapper{
 		wrapped: wraps,
@@ -22,11 +26,12 @@ func NewFSWrapper(wraps fs.FS, appends string, logAccess bool) *FSWrapper {
 	}
 }
 
-func (fs *FSWrapper) Open(name string) (fs.File, error) {
-	res, err := fs.wrapped.Open(fs.toAdd + name)
-	if fs.log {
+// Pretty sure this can't be reliably tested
+func (fw *FSWrapper) Open(name string) (fs.File, error) {
+	res, err := fw.wrapped.Open(fw.toAdd + name)
+	if fw.log {
 		log.Debug().
-			Str("prefix", fs.toAdd).
+			Str("prefix", fw.toAdd).
 			Str("filename", name).
 			Err(err).
 			Msg("fswrapper: File access result")

shared/fswrapper_test.go

@@ -0,0 +1,29 @@
+package shared
+
+import (
+	"io"
+	"os"
+	"reflect"
+	"testing"
+)
+
+func TestFSWrapper_Open(t *testing.T) {
+	rootFs := os.DirFS("/")
+	wrapper := NewFSWrapper(rootFs, "etc/", false)
+	f, err := wrapper.Open("hostname")
+	if err != nil {
+		t.Fatalf("failed to open /etc/hostname: %v", err)
+	}
+	defer f.Close()
+	data, err := os.ReadFile("/etc/hostname")
+	if err != nil {
+		t.Fatalf("failed to read with full path: %v", err)
+	}
+	wrappedData, err := io.ReadAll(f)
+	if err != nil {
+		t.Fatalf("failed to read from wrapped file: %v", err)
+	}
+	if !reflect.DeepEqual(wrappedData, data) {
+		t.Fatal("file contents are different")
+	}
+}

shared/isWritable.go

@@ -6,6 +6,8 @@ package shared
 import "golang.org/x/sys/unix"
 
 // Copied from https://stackoverflow.com/a/20026945 and https://stackoverflow.com/a/49148866
+// Not testable as host environment could be just about anything
+// and this function is for testing the host environment
 func IsWritable(path string) bool {
 	return unix.Access(path, unix.W_OK) == nil
 }

shared/isWritable_windows.go

@@ -3,6 +3,9 @@ package shared
 import "os"
 
 // Copied from https://stackoverflow.com/a/20026945 and https://stackoverflow.com/a/49148866
+// Not testable as host environment could be just about anything
+// and this function is for testing the host environment.
+// Also, Windows is not supported. It may work, it may not, doesn't matter
 func IsWritable(path string) bool {
 	info, err := os.Stat(path)
 	if err != nil {

shared/signing_test.go

@@ -0,0 +1,108 @@
+package shared
+
+import (
+	"crypto"
+	"crypto/ed25519"
+	"crypto/rsa"
+	"crypto/sha256"
+	"crypto/x509"
+	"reflect"
+	"testing"
+)
+
+const testStringToSign = "some random text that I made up at work and definitely has no other purpose"
+
+func TestGenerateKeypairRSA(t *testing.T) {
+	publicBytes, privateBytes, err := GenerateKeypair(false)
+	if err != nil {
+		t.Fatalf("generation failed: %v", err)
+	}
+	publicUntyped, err := x509.ParsePKIXPublicKey(publicBytes)
+	if err != nil {
+		t.Fatalf("parsing public bytes into key failed: %v", err)
+	}
+	public, ok := publicUntyped.(*rsa.PublicKey)
+	if !ok {
+		t.Fatal("asserting public key as rsa.PublicKey failed")
+	}
+	private, err := x509.ParsePKCS1PrivateKey(privateBytes)
+	if err != nil {
+		t.Fatalf("parsing private bytes into key failed: %v", err)
+	}
+	if err := private.Validate(); err != nil {
+		t.Fatalf("validation of private key failed: %v", err)
+	}
+	genPublicRaw := private.Public()
+	genPublic, ok := genPublicRaw.(*rsa.PublicKey)
+	if !reflect.DeepEqual(*public, *genPublic) {
+		t.Fatal("public from generator and from private are different")
+	}
+}
+
+func TestGenerateKeypairED(t *testing.T) {
+	publicBytes, privateBytes, err := GenerateKeypair(true)
+	if err != nil {
+		t.Fatalf("generation failed: %v", err)
+	}
+	publicUntyped, err := x509.ParsePKIXPublicKey(publicBytes)
+	if err != nil {
+		t.Fatalf("parsing public bytes into key failed: %v", err)
+	}
+	public, ok := publicUntyped.(ed25519.PublicKey)
+	if !ok {
+		t.Fatal("asserting public key as ed25519.PublicKey failed")
+	}
+	private := ed25519.PrivateKey(privateBytes)
+	pubGenRaw := private.Public()
+	pubGen, ok := pubGenRaw.(ed25519.PublicKey)
+	if !ok {
+		t.Fatal("public key generated by private key is not of type ed25519.PublicKey")
+	}
+	if !reflect.DeepEqual(pubGen, public) {
+		t.Fatal("public from generator and from private are different")
+	}
+}
+
+func TestSignRSA(t *testing.T) {
+	publicBytes, privateBytes, err := GenerateKeypair(false)
+	if err != nil {
+		t.Fatalf("failed to generate RSA keypair: %v", err)
+	}
+	pubRaw, err := x509.ParsePKIXPublicKey(publicBytes)
+	if err != nil {
+		t.Fatalf("failed to parse public rsa key: %v", err)
+	}
+	pub, ok := pubRaw.(*rsa.PublicKey)
+	if !ok {
+		t.Fatal("parsed public key is not *rsa.PublicKey")
+	}
+	hash := sha256.Sum256([]byte(testStringToSign))
+	signed, err := Sign(testStringToSign, privateBytes, true)
+	if err != nil {
+		t.Fatalf("failed to sign test string: %v", err)
+	}
+
+	if rsa.VerifyPKCS1v15(pub, crypto.SHA256, hash[:], signed) != nil {
+		t.Fatal("failed to verify")
+	}
+}
+
+func TestKeyBytesToPem(t *testing.T) {
+	type args struct {
+		bytes []byte
+	}
+	tests := []struct {
+		name string
+		args args
+		want string
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := KeyBytesToPem(tt.args.bytes, true); got != tt.want {
+				t.Errorf("KeyBytesToPem() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}

shared/tagsFromString.go

@@ -7,7 +7,7 @@ import (
 	"git.mstar.dev/mstar/goutils/sliceutils"
 )
 
-var tagRegex = regexp.MustCompile(`#(\w+)`)
+var tagRegex = regexp.MustCompile(`#([a-zA-Z0-9\-_]+)`)
 
 func TagsFromText(text string) []string {
 	matches := tagRegex.FindAllString(text, -1)

shared/tagsFromString_test.go

@@ -0,0 +1,34 @@
+package shared
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestTagsFromText(t *testing.T) {
+	type args struct {
+		text string
+	}
+	tests := []struct {
+		name string
+		args args
+		want []string
+	}{
+		{
+			name: "No tags",
+			args: args{"Text with no tags whatsoever"},
+			want: []string{},
+		}, {
+			name: "one tag",
+			args: args{"Text with one simple #tag"},
+			want: []string{"tag"},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := TagsFromText(tt.args.text); !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("TagsFromText() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}

shared/tracing.go

@@ -4,6 +4,8 @@ import (
 	"github.com/rs/zerolog"
 )
 
+// Not testable since it focuses entirely on the side effect of
+// sending a log out
 func Trace(l *zerolog.Logger) *zerolog.Logger {
 	if e := l.Trace(); e.Enabled() {
 		e.Caller(2).
@@ -12,6 +14,8 @@ func Trace(l *zerolog.Logger) *zerolog.Logger {
 	return l
 }
 
+// Not testable since it focuses entirely on the side effect of
+// sending a log out
 func Untrace(l *zerolog.Logger) {
 	if e := l.Trace(); e.Enabled() {
 		e.Caller(2).

shared/zerologGormAdapter.go

@@ -12,10 +12,16 @@ type ZerologGormAdapter struct {
 	logger zerolog.Logger
 }
 
+// Compile time interface implementation enforcement
+var _ logger.Interface = &ZerologGormAdapter{}
+
+// Not worth testing as just a wrapper for putting into a struct
 func NewGormLogger(zerologger zerolog.Logger) *ZerologGormAdapter {
 	return &ZerologGormAdapter{zerologger}
 }
 
+// Not testable since it focuses entirely on the side effect of
+// configuring loglevel
 func (g *ZerologGormAdapter) LogMode(newLevel logger.LogLevel) logger.Interface {
 	switch newLevel {
 	case logger.Error:
@@ -29,16 +35,23 @@ func (g *ZerologGormAdapter) LogMode(newLevel logger.LogLevel) logger.Interface
 	}
 	return g
 }
+
+// Not worth testing since only a wrapper around another function call
 func (g *ZerologGormAdapter) Info(ctx context.Context, format string, args ...any) {
 	g.logger.Info().Ctx(ctx).Msgf(format, args...)
 }
+
+// Not worth testing since only a wrapper around another function call
 func (g *ZerologGormAdapter) Warn(ctx context.Context, format string, args ...any) {
 	g.logger.Warn().Ctx(ctx).Msgf(format, args...)
 }
+
+// Not worth testing since only a wrapper around another function call
 func (g *ZerologGormAdapter) Error(ctx context.Context, format string, args ...any) {
 	g.logger.Error().Ctx(ctx).Msgf(format, args...)
 }
 
+// Not worth testing since only a wrapper around another function call
 func (g *ZerologGormAdapter) Trace(
 	ctx context.Context,
 	begin time.Time,
@@ -55,10 +68,12 @@ func (g *ZerologGormAdapter) Trace(
 		Send()
 }
 
+// Not worth testing since only a wrapper around another function call
 func (g *ZerologGormAdapter) OverwriteLoggingLevel(new zerolog.Level) {
 	g.logger = g.logger.Level(new)
 }
 
+// Not worth testing since only a wrapper around another function call
 func (g *ZerologGormAdapter) OverwriteLogger(new zerolog.Logger) {
 	g.logger = new
 }

shared/zerologPasskey.go

@@ -2,6 +2,9 @@ package shared
 
 import "github.com/rs/zerolog/log"
 
+// Stuff here is not actually used anymore in the new implementation
+// thus also no tests needed
+
 type ZerologWrapper struct{}
 
 func (z *ZerologWrapper) Errorf(format string, args ...any) {

web/shared/Note.go

@@ -24,14 +24,17 @@ type Note struct {
 var _ shared.Clonable = &Note{}
 var _ shared.Sanitisable = &Note{}
 
+// No test, does nothing currently
 func (note *Note) Sanitize() {
 }
 
+// No test, no data processing, only copy
 func (note *Note) Clone() shared.Clonable {
 	tmp := *note
 	return &tmp
 }
 
+// No test, no data processing, only copy
 func (n *Note) FromModel(m *models.Note) {
 	n.ID = m.ID
 	n.CreatedAt = m.CreatedAt

web/shared/User.go

@@ -44,11 +44,13 @@ type User struct {
 var _ shared.Sanitisable = &User{}
 var _ shared.Clonable = &User{}
 
+// No test due to no fancy processing, just setting values to constants
 func (u *User) Sanitize() {
 	u.Verified = nil
 	u.FinishedRegistration = nil
 }
 
+// No test, no data processing, only copy
 func (u *User) Clone() shared.Clonable {
 	user := *u
 	if u.IconId != nil {
@@ -83,6 +85,7 @@ func (u *User) Clone() shared.Clonable {
 	return &user
 }
 
+// No test, no data processing, only copy
 func (u *User) FromModel(m *models.User) {
 	u.ID = m.ID
 	u.CreatedAt = m.CreatedAt

web/shared/client_test.go

@@ -0,0 +1,57 @@
+package webshared
+
+import (
+	"io"
+	"net/http"
+	"reflect"
+	"testing"
+)
+
+const testBody = `{
+  "key": "value",
+  "more-key": 21
+}`
+
+var testBodyHash = []byte("22a5173da554010ea25f7d2ae34032a434c3a883a55d65f34c3413fdc555bed3")
+
+func TestSignRequest(t *testing.T) {
+	// TODO: Implement tests
+}
+
+func Test_applyBodyHash_WithBody(t *testing.T) {
+	var headers = make(http.Header, 0)
+	digest := "SHA-256=" + string(testBodyHash)
+	applyBodyHash(headers, []byte(testBody))
+	headerDigest := headers.Get("Digest")
+	if headerDigest != digest {
+		t.Fatalf("digests didn't match: header \"%v\" != precalc \"%v\"", headerDigest, digest)
+	}
+}
+
+func TestNewRequest(t *testing.T) {
+	type args struct {
+		method string
+		url    string
+		body   io.Reader
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    *http.Request
+		wantErr bool
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := NewRequest(tt.args.method, tt.args.url, tt.args.body)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("NewRequest() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("NewRequest() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}