Fixes hacks from progressreader refactor

related to #10959

Signed-off-by: bobby abbott <ttobbaybbob@gmail.com>

jsonmessage/jsonmessage_test.go

@@ -0,0 +1,38 @@
+package jsonmessage
+
+import (
+	"testing"
+)
+
+func TestError(t *testing.T) {
+	je := JSONError{404, "Not found"}
+	if je.Error() != "Not found" {
+		t.Fatalf("Expected 'Not found' got '%s'", je.Error())
+	}
+}
+
+func TestProgress(t *testing.T) {
+	jp := JSONProgress{}
+	if jp.String() != "" {
+		t.Fatalf("Expected empty string, got '%s'", jp.String())
+	}
+
+	expected := "     1 B"
+	jp2 := JSONProgress{Current: 1}
+	if jp2.String() != expected {
+		t.Fatalf("Expected %q, got %q", expected, jp2.String())
+	}
+
+	expected = "[=========================>                         ]     50 B/100 B"
+	jp3 := JSONProgress{Current: 50, Total: 100}
+	if jp3.String() != expected {
+		t.Fatalf("Expected %q, got %q", expected, jp3.String())
+	}
+
+	// this number can't be negetive gh#7136
+	expected = "[==================================================>]     50 B/40 B"
+	jp4 := JSONProgress{Current: 50, Total: 40}
+	if jp4.String() != expected {
+		t.Fatalf("Expected %q, got %q", expected, jp4.String())
+	}
+}