public void TestArgumentExceptions () { Assert.Throws<ArgumentNullException> (() => new HtmlWriter (null, Encoding.UTF8)); Assert.Throws<ArgumentNullException> (() => new HtmlWriter (new MemoryStream (), null)); Assert.Throws<ArgumentNullException> (() => new HtmlWriter (null)); using (var html = new HtmlWriter (new StringWriter ())) { Assert.Throws<ArgumentNullException> (() => html.WriteAttribute (null)); Assert.Throws<ArgumentNullException> (() => html.WriteAttribute (null, string.Empty)); Assert.Throws<ArgumentNullException> (() => html.WriteAttribute ("name", null)); Assert.Throws<ArgumentException> (() => html.WriteAttribute (string.Empty, null)); Assert.Throws<ArgumentException> (() => html.WriteAttribute ("a b c", null)); Assert.Throws<ArgumentNullException> (() => html.WriteAttribute (null, new char[1], 0, 1)); Assert.Throws<ArgumentNullException> (() => html.WriteAttribute ("name", null, 0, 0)); Assert.Throws<ArgumentOutOfRangeException> (() => html.WriteAttribute ("name", new char[0], -1, 0)); Assert.Throws<ArgumentOutOfRangeException> (() => html.WriteAttribute ("name", new char[0], 0, 1)); Assert.Throws<ArgumentException> (() => html.WriteAttribute (HtmlAttributeId.Unknown, new char[1], 0, 1)); Assert.Throws<ArgumentNullException> (() => html.WriteAttribute (HtmlAttributeId.Alt, null, 0, 0)); Assert.Throws<ArgumentOutOfRangeException> (() => html.WriteAttribute (HtmlAttributeId.Alt, new char[0], -1, 0)); Assert.Throws<ArgumentOutOfRangeException> (() => html.WriteAttribute (HtmlAttributeId.Alt, new char[0], 0, 1)); Assert.Throws<ArgumentException> (() => html.WriteAttributeName (HtmlAttributeId.Unknown)); Assert.Throws<ArgumentNullException> (() => html.WriteAttributeName (null)); Assert.Throws<ArgumentNullException> (() => html.WriteAttributeValue (null)); Assert.Throws<ArgumentNullException> (() => html.WriteAttributeValue (null, 0, 0)); Assert.Throws<ArgumentOutOfRangeException> (() => html.WriteAttributeValue (new char[0], -1, 0)); Assert.Throws<ArgumentOutOfRangeException> (() => html.WriteAttributeValue (new char[0], 0, 1)); Assert.Throws<ArgumentException> (() => html.WriteEmptyElementTag (HtmlTagId.Unknown)); Assert.Throws<ArgumentNullException> (() => html.WriteEmptyElementTag (null)); Assert.Throws<ArgumentException> (() => html.WriteEmptyElementTag (string.Empty)); Assert.Throws<ArgumentException> (() => html.WriteEmptyElementTag ("a b c")); Assert.Throws<ArgumentException> (() => html.WriteEndTag (HtmlTagId.Unknown)); Assert.Throws<ArgumentNullException> (() => html.WriteEndTag (null)); Assert.Throws<ArgumentException> (() => html.WriteEndTag (string.Empty)); Assert.Throws<ArgumentException> (() => html.WriteEndTag ("a b c")); Assert.Throws<ArgumentNullException> (() => html.WriteMarkupText (null)); Assert.Throws<ArgumentNullException> (() => html.WriteMarkupText (null, 0, 0)); Assert.Throws<ArgumentOutOfRangeException> (() => html.WriteMarkupText (new char[0], -1, 0)); Assert.Throws<ArgumentOutOfRangeException> (() => html.WriteMarkupText (new char[0], 0, 1)); Assert.Throws<ArgumentException> (() => html.WriteStartTag (HtmlTagId.Unknown)); Assert.Throws<ArgumentNullException> (() => html.WriteStartTag (null)); Assert.Throws<ArgumentException> (() => html.WriteStartTag (string.Empty)); Assert.Throws<ArgumentException> (() => html.WriteStartTag ("a b c")); Assert.Throws<ArgumentNullException> (() => html.WriteText (null)); Assert.Throws<ArgumentNullException> (() => html.WriteText (null, 0, 0)); Assert.Throws<ArgumentOutOfRangeException> (() => html.WriteText (new char[0], -1, 0)); Assert.Throws<ArgumentOutOfRangeException> (() => html.WriteText (new char[0], 0, 1)); Assert.Throws<ArgumentNullException> (() => html.WriteToken (null)); } }
public void TestHtmlWriter () { const string expected = "<html ltr=\"true\"><head/><body><p class=\"paragraph\">" + "special characters in this text should get encoded: <>'&\n" + "special characters should not get encoded: <>" + "</p></body></html>"; var actual = new StringBuilder (); using (var html = new HtmlWriter (new StringWriter (actual))) { Assert.AreEqual (HtmlWriterState.Default, html.WriterState); // make sure we can't start by writing an attribute since we are in the wrong state Assert.Throws<InvalidOperationException> (() => html.WriteAttribute (new HtmlAttribute (HtmlAttributeId.Action, "invalid state"))); Assert.Throws<InvalidOperationException> (() => html.WriteAttribute (HtmlAttributeId.Action, "invalid state")); Assert.Throws<InvalidOperationException> (() => html.WriteAttribute ("action", "invalid state")); // write a tag html.WriteStartTag (HtmlTagId.Html); Assert.AreEqual (HtmlWriterState.Tag, html.WriterState); // *now* we should be able to write an attribute html.WriteAttribute (new HtmlAttribute ("ltr", "true")); // write en empty element tag, this should change the state to Default html.WriteEmptyElementTag (HtmlTagId.Head); Assert.AreEqual (HtmlWriterState.Tag, html.WriterState); html.WriteStartTag ("body"); Assert.AreEqual (HtmlWriterState.Tag, html.WriterState); html.WriteStartTag (HtmlTagId.P); Assert.AreEqual (HtmlWriterState.Tag, html.WriterState); // make sure that we can't write an attribute value yet Assert.Throws<InvalidOperationException> (() => html.WriteAttributeValue ("attrValue")); Assert.Throws<InvalidOperationException> (() => html.WriteAttributeValue ("attrValue".ToCharArray (), 0, 9)); html.WriteAttributeName (HtmlAttributeId.Class); Assert.AreEqual (HtmlWriterState.Attribute, html.WriterState); html.WriteAttributeValue ("paragraph"); Assert.AreEqual (HtmlWriterState.Tag, html.WriterState); html.WriteText ("special characters in this text should get encoded: <>'&\n"); html.WriteMarkupText ("special characters should not get encoded: <>"); Assert.AreEqual (HtmlWriterState.Default, html.WriterState); html.WriteEndTag (HtmlTagId.P); html.WriteEndTag (HtmlTagId.Body); html.WriteEndTag ("html"); } Assert.AreEqual (expected, actual.ToString ()); }