Add more tests (sashabaranov#241)

* add form builder tests

* lint

* add client tests

* lint

* add non-existent file test

audio_test.go

@@ -50,13 +50,13 @@ func TestAudio(t *testing.T) {
 
 	ctx := context.Background()
 
-	dir, cleanup := createTestDirectory(t)
+	dir, cleanup := test.CreateTestDirectory(t)
 	defer cleanup()
 
 	for _, tc := range testcases {
 		t.Run(tc.name, func(t *testing.T) {
 			path := filepath.Join(dir, "fake.mp3")
-			createTestFile(t, path)
+			test.CreateTestFile(t, path)
 
 			req := AudioRequest{
 				FilePath: path,
@@ -98,13 +98,13 @@ func TestAudioWithOptionalArgs(t *testing.T) {
 
 	ctx := context.Background()
 
-	dir, cleanup := createTestDirectory(t)
+	dir, cleanup := test.CreateTestDirectory(t)
 	defer cleanup()
 
 	for _, tc := range testcases {
 		t.Run(tc.name, func(t *testing.T) {
 			path := filepath.Join(dir, "fake.mp3")
-			createTestFile(t, path)
+			test.CreateTestFile(t, path)
 
 			req := AudioRequest{
 				FilePath:    path,
@@ -119,27 +119,6 @@ func TestAudioWithOptionalArgs(t *testing.T) {
 	}
 }
 
-// createTestFile creates a fake file with "hello" as the content.
-func createTestFile(t *testing.T, path string) {
-	file, err := os.Create(path)
-	checks.NoError(t, err, "failed to create file")
-
-	if _, err = file.WriteString("hello"); err != nil {
-		t.Fatalf("failed to write to file %v", err)
-	}
-	file.Close()
-}
-
-// createTestDirectory creates a temporary folder which will be deleted when cleanup is called.
-func createTestDirectory(t *testing.T) (path string, cleanup func()) {
-	t.Helper()
-
-	path, err := os.MkdirTemp(os.TempDir(), "")
-	checks.NoError(t, err)
-
-	return path, func() { os.RemoveAll(path) }
-}
-
 // handleAudioEndpoint Handles the completion endpoint by the test server.
 func handleAudioEndpoint(w http.ResponseWriter, r *http.Request) {
 	var err error
@@ -190,10 +169,10 @@ func handleAudioEndpoint(w http.ResponseWriter, r *http.Request) {
 }
 
 func TestAudioWithFailingFormBuilder(t *testing.T) {
-	dir, cleanup := createTestDirectory(t)
+	dir, cleanup := test.CreateTestDirectory(t)
 	defer cleanup()
 	path := filepath.Join(dir, "fake.mp3")
-	createTestFile(t, path)
+	test.CreateTestFile(t, path)
 
 	req := AudioRequest{
 		FilePath:    path,

client_test.go

@@ -0,0 +1,22 @@
+package openai //nolint:testpackage // testing private field
+
+import (
+	"testing"
+)
+
+func TestClient(t *testing.T) {
+	const mockToken = "mock token"
+	client := NewClient(mockToken)
+	if client.config.authToken != mockToken {
+		t.Errorf("Client does not contain proper token")
+	}
+
+	const mockOrg = "mock org"
+	client = NewOrgClient(mockToken, mockOrg)
+	if client.config.authToken != mockToken {
+		t.Errorf("Client does not contain proper token")
+	}
+	if client.config.OrgID != mockOrg {
+		t.Errorf("Client does not contain proper orgID")
+	}
+}

files_test.go

@@ -126,3 +126,17 @@ func TestFileUploadWithFailingFormBuilder(t *testing.T) {
 	_, err = client.CreateFile(ctx, req)
 	checks.ErrorIs(t, err, mockError, "CreateFile should return error if form builder fails")
 }
+
+func TestFileUploadWithNonExistentPath(t *testing.T) {
+	config := DefaultConfig("")
+	config.BaseURL = ""
+	client := NewClientWithConfig(config)
+
+	ctx := context.Background()
+	req := FileRequest{
+		FilePath: "some non existent file path/F616FD18-589E-44A8-BF0C-891EAE69C455",
+	}
+
+	_, err := client.CreateFile(ctx, req)
+	checks.ErrorIs(t, err, os.ErrNotExist, "CreateFile should return error if file does not exist")
+}

form_builder_test.go

@@ -0,0 +1,54 @@
+package openai //nolint:testpackage // testing private field
+
+import (
+	"github.com/sashabaranov/go-openai/internal/test"
+	"github.com/sashabaranov/go-openai/internal/test/checks"
+
+	"bytes"
+	"errors"
+	"os"
+	"testing"
+)
+
+type failingWriter struct {
+}
+
+var errMockFailingWriterError = errors.New("mock writer failed")
+
+func (*failingWriter) Write([]byte) (int, error) {
+	return 0, errMockFailingWriterError
+}
+
+func TestFormBuilderWithFailingWriter(t *testing.T) {
+	dir, cleanup := test.CreateTestDirectory(t)
+	defer cleanup()
+
+	file, err := os.CreateTemp(dir, "")
+	if err != nil {
+		t.Errorf("Error creating tmp file: %v", err)
+	}
+	defer file.Close()
+	defer os.Remove(file.Name())
+
+	builder := newFormBuilder(&failingWriter{})
+	err = builder.createFormFile("file", file)
+	checks.ErrorIs(t, err, errMockFailingWriterError, "formbuilder should return error if writer fails")
+}
+
+func TestFormBuilderWithClosedFile(t *testing.T) {
+	dir, cleanup := test.CreateTestDirectory(t)
+	defer cleanup()
+
+	file, err := os.CreateTemp(dir, "")
+	if err != nil {
+		t.Errorf("Error creating tmp file: %v", err)
+	}
+	file.Close()
+	defer os.Remove(file.Name())
+
+	body := &bytes.Buffer{}
+	builder := newFormBuilder(body)
+	err = builder.createFormFile("file", file)
+	checks.HasError(t, err, "formbuilder should return error if file is closed")
+	checks.ErrorIs(t, err, os.ErrClosed, "formbuilder should return error if file is closed")
+}

internal/test/helpers.go

@@ -0,0 +1,29 @@
+package test
+
+import (
+	"github.com/sashabaranov/go-openai/internal/test/checks"
+
+	"os"
+	"testing"
+)
+
+// CreateTestFile creates a fake file with "hello" as the content.
+func CreateTestFile(t *testing.T, path string) {
+	file, err := os.Create(path)
+	checks.NoError(t, err, "failed to create file")
+
+	if _, err = file.WriteString("hello"); err != nil {
+		t.Fatalf("failed to write to file %v", err)
+	}
+	file.Close()
+}
+
+// CreateTestDirectory creates a temporary folder which will be deleted when cleanup is called.
+func CreateTestDirectory(t *testing.T) (path string, cleanup func()) {
+	t.Helper()
+
+	path, err := os.MkdirTemp(os.TempDir(), "")
+	checks.NoError(t, err)
+
+	return path, func() { os.RemoveAll(path) }
+}