Add tests.

.github/workflows/tests.yml

@@ -33,4 +33,4 @@ jobs:
         COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |
         go install github.com/mattn/goveralls@latest
-        $(go env GOPATH)/bin/goveralls -coverprofile=profile.cov -service=github -ignore=examples/*/*
+        goveralls -coverprofile=profile.cov -service=github -ignore=examples/*/*

http.go

@@ -21,7 +21,7 @@ type HTTPError struct {
 }
 
 func (e HTTPError) Error() string {
-	return fmt.Sprintf("HTTP status: %d", e.StatusCode)
+	return fmt.Sprintf("http status %d (%s)", e.StatusCode, http.StatusText(e.StatusCode))
 }
 
 type fileField struct {

http_test.go

@@ -0,0 +1,31 @@
+package micha
+
+import (
+	"bytes"
+	"io"
+	"net/http"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestHTTPError(t *testing.T) {
+	var err error = HTTPError{
+		StatusCode: http.StatusNotFound,
+	}
+
+	require.Equal(t, "http status 404 (Not Found)", err.Error())
+}
+
+func TestHandleResponse(t *testing.T) {
+	response := &http.Response{
+		Body:       io.NopCloser(bytes.NewBuffer(nil)),
+		StatusCode: http.StatusForbidden,
+	}
+
+	body, err := handleResponse(response)
+	require.NotNil(t, err)
+	require.Nil(t, body)
+
+	require.Equal(t, "http status 403 (Forbidden)", err.Error())
+}

options_test.go

@@ -0,0 +1,23 @@
+package micha
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestWithAPIServer(t *testing.T) {
+	options := &Options{}
+	WithAPIServer("http://127.0.0.1/")(options)
+
+	require.Equal(t, "http://127.0.0.1", options.apiServer)
+}
+
+func TestWithCtx(t *testing.T) {
+	options := &Options{}
+	ctx := context.WithValue(context.Background(), "foo", "bar")
+	WithCtx(ctx)(options)
+
+	require.Equal(t, ctx, options.ctx)
+}