fix

README.md

@@ -122,8 +122,8 @@ While not finished, go-jsonschema can be used today. Aside from some minor featu
     - [ ] `minimum`
     - [ ] `exclusiveMinimum`
   - [ ] String validation (§6.3)
-    - [ ] `maxLength`
-    - [ ] `minLength`
+    - [X] `maxLength`
+    - [X] `minLength`
     - [ ] `pattern`
   - [ ] Array validation (§6.4)
     - [X] `items`

go.work.sum

@@ -1,6 +1,8 @@
 github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
+golang.org/x/mod v0.13.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
 golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
+golang.org/x/tools v0.14.0/go.mod h1:uYBEerGOWcJyEORxN+Ek8+TT266gXkNlHdJBwexUsBg=

pkg/generator/validator.go

@@ -244,7 +244,7 @@ func (v *stringValidator) generate(out *codegen.Emitter) {
 	}
 
 	if v.maxLength != 0 {
-		out.Printlnf(`if %slen(%s%s) >= %d {`, checkPointer, pointerPrefix, value, v.maxLength)
+		out.Printlnf(`if %slen(%s%s) > %d {`, checkPointer, pointerPrefix, value, v.maxLength)
 		out.Indent(1)
 		out.Printlnf(`return fmt.Errorf("field %%s length: must be <= %%d", "%s", %d)`, fieldName, v.maxLength)
 		out.Indent(-1)

tests/validation_test.go

@@ -24,9 +24,9 @@ func TestMaxStringLength(t *testing.T) {
 			wantErr: nil,
 		},
 		{
-			desc:    "myString too long",
+			desc:    "myString has the max allowed length",
 			data:    `{"myString": "hello"}`,
-			wantErr: errors.New("field myString length: must be <= 5"),
+			wantErr: nil,
 		},
 		{
 			desc:    "myString not present",