NUnit.Framework.Is.EqualTo(object)

[Test]
        public void Parameter_without_default_value_but_equalSign()
        {
            var keyValue = ParameterSection.Parameter.Parse("key=");
            replacedert.That(keyValue.Key, Is.EqualTo("key"));
            replacedert.That(keyValue.Value, Is.EqualTo(""));
        }

[Test]
        public void Parameter_without_default_value()
        {
            var keyValue = ParameterSection.Parameter.Parse("key");
            replacedert.That(keyValue.Key, Is.EqualTo("key"));
            replacedert.That(keyValue.Value, Is.EqualTo(""));
        }

[Test]
        public void Verify_retrieve_of_template()
        {
            var sut = new TemplateManager(GetTemplateFolder("1"));
            var template = sut.GetWordDefinitionTemplate("TemplateA");
            replacedert.That(template, Is.Not.Null);
            replacedert.That(template.Name, Is.EqualTo("TemplateA"));

            var expected = Path.Combine(GetTemplateFolder("1"), "TemplateA", "Product Backlog Item.docx");
            replacedert.That(template.GetTemplateFor("Product BACKLOG Item"), Is.EqualTo(expected));
        }

[Test]
        public void Verify_scan_folder_grab_name()
        {
            WordTemplateFolderManager sut = CreateSutForTemplate_1_A();
            replacedert.That(sut.Name, Is.EqualTo("TemplateA"));
        }

[Test]
        public void Verify_correctly_grab_docx_name()
        {
            WordTemplateFolderManager sut = CreateSutForTemplate_1_A();
            var expected = Path.Combine(GetTemplate1AFolder(), "Product Backlog Item.docx");
            replacedert.That(sut.GetTemplateFor("Product Backlog Item"), Is.EqualTo(expected));
        }

[Test]
        public void Verify_default_name_if_Work_item_type_does_not_esixts()
        {
            WordTemplateFolderManager sut = CreateSutForTemplate_1_A();
            var expected = Path.Combine(GetTemplate1AFolder(), "WorkItem.docx");
            replacedert.That(sut.GetTemplateFor("This type does not exists"), Is.EqualTo(expected));
        }

[Test]
        public void Parameter_with_default_value()
        {
            var keyValue = ParameterSection.Parameter.Parse("key=defValue");
            replacedert.That(keyValue.Key, Is.EqualTo("key"));
            replacedert.That(keyValue.Value, Is.EqualTo("defValue"));
        }

[Test]
        public void Parameter_with_default_value_and_spaces()
        {
            var keyValue = ParameterSection.Parameter.Parse("key  =  defValue");
            replacedert.That(keyValue.Key, Is.EqualTo("key"));
            replacedert.That(keyValue.Value, Is.EqualTo("defValue"));
        }

[Test]
        public void Verify_grab_docx_name_is_not_case_sensitive()
        {
            WordTemplateFolderManager sut = CreateSutForTemplate_1_A();
            var expected = Path.Combine(GetTemplate1AFolder(), "Product Backlog Item.docx");
            replacedert.That(sut.GetTemplateFor("Product BACKLOG Item"), Is.EqualTo(expected));
        }

[Test]
        public void SelectivelyRemoveSingleTag()
        {
            var doc = new HtmlDoreplacedent();
            doc.LoadHtml("<p>paragraph</p><p>multiple</p>");
            doc.RemoveTags(null, "p");

            replacedert.That(doc.DoreplacedentNode.InnerHtml, Is.EqualTo("paragraphmultiple"));
        }

[Test]
        public void SelectivelyRemoveSingleTagWithPrefix()
        {
            var doc = new HtmlDoreplacedent();
            doc.LoadHtml("Prefix<p>paragraph</p><p>multiple</p>");
            doc.RemoveTags(null, "p");

            replacedert.That(doc.DoreplacedentNode.InnerHtml, Is.EqualTo("Prefixparagraphmultiple"));
        }

[Test]
        public void SelectivelyRemoveSingleTagWithClosingSubsreplacedution()
        {
            var doc = new HtmlDoreplacedent();
            doc.LoadHtml("<p>paragraph</p><p>multiple</p>");
            doc.RemoveTags(doc.CreateElement("br"), "p");

            replacedert.That(doc.DoreplacedentNode.InnerHtml, Is.EqualTo("paragraph<br>multiple<br>"));
        }

[Test]
        public void SelectivelyRemoveSingleTagMaintainInner()
        {
            var doc = new HtmlDoreplacedent();
            doc.LoadHtml("<p>paragraph <strong>strong</strong></p><p>multiple</p>");
            doc.RemoveTags(null, "p");

            replacedert.That(doc.DoreplacedentNode.InnerHtml, Is.EqualTo("paragraph <strong>strong</strong>multiple"));
        }

[Test]
        public void Basic_Parsing_of_definition_for_excel_Export()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[definition]]
  type=excel
[[parameters]]
  TargetDateStart=2019-06-01
  TargetDateEnd=2019-10-01
[[parameterDefinition]]");
            replacedert.That(def.Type, Is.EqualTo(TemplateType.Excel));
        }

[Test]
        public void Default_template_type_is_word()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[parameters]]
  TargetDateStart=2019-06-01
  TargetDateEnd=2019-10-01
[[parameterDefinition]]");
            replacedert.That(def.Type, Is.EqualTo(TemplateType.Word));
        }

[Test]
        public void Support_for_base_template()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[definition]]
  type=excel
  baseTemplate=test.xlsx
[[parameters]]
  TargetDateStart=2019-06-01
  TargetDateEnd=2019-10-01
[[parameterDefinition]]");
            replacedert.That(def.BaseTemplate, Is.EqualTo ("test.xlsx"));
        }

[Test]
        public void Basic_Parsing_of_Parameters_with_default_value_returns_parameter_section()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[parameters]]
    parama=2017-01-01
    paramb=2019-04-31");
            replacedert.That(def.ParameterSection, Is.Not.Null);
            var paramA = def.ParameterSection.Parameters["parama"];
            replacedert.That(paramA, Is.EqualTo("2017-01-01"));

            var paramB = def.ParameterSection.Parameters["paramb"];
            replacedert.That(paramB, Is.EqualTo("2019-04-31"));
        }

[Test]
        public void Basic_Parsing_of_Parameters_with_allowed_values()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[parameterDefinition]]
    parama=string/A|B|C
    paramb=datetime");
            replacedert.That(def.ParameterDefinition, Is.Not.Null);
            var paramA = def.ParameterDefinition["parama"];
            replacedert.That(paramA.Type, Is.EqualTo("string"));
            replacedert.That(paramA.AllowedValues, Is.EquivalentTo(new[] { "A", "B", "C" }));

            var paramb = def.ParameterDefinition["paramb"];
            replacedert.That(paramb.Type, Is.EqualTo("datetime"));
        }

[Test]
        public void Basic_Parsing_of_array_parameter()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[arrayParameters]]
    tags");
            replacedert.That(def.ArrayParameterSection.ArrayParameters.Count, Is.EqualTo(1));
        }

[Test]
        public void Basic_Parsing_of_array_parameter_followed_by_other_params()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[arrayParameters]]
    tags=te,tr,ty
[[parameters]]
	TargetDateStart=2019-01-01");
            replacedert.That(def.ArrayParameterSection.ArrayParameters.Count, Is.EqualTo(1));
        }

[Test]
        public void Parsing_two_Sections()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[parameters]]
    parama
    paramb
[[static]]
    filename: bla.txt");
            replacedert.That(def.AllSections.Length, Is.EqualTo(2));
            replacedert.That(def.AllSections[0], Is.InstanceOf<ParameterSection>());
            replacedert.That(def.AllSections[1], Is.InstanceOf<StaticWordSection>());
        }

[Test]
        public void Valid_static_section()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[static]]
    filename: bla.docx
    pageBreak: true");
            var staticSection = def.AllSections.Single() as StaticWordSection;
            replacedert.That(staticSection.FileName, Is.EqualTo("bla.docx"));
            replacedert.That(staticSection.PageBreak, Is.EqualTo(true));
        }

[Test]
        public void Valid_query_section()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[query]]
    name: TestQueryName
    query: ""SELECT * FROM WorkItems Where [System.AreaPath] UNDER '{areaPath}' AND [System.IterationPath] UNDER '{iterationPath}'""
    template/Product Backlog Item: pbix.docx
    template/Bug: bugaa.docx
");
            var querySection = def.AllSections.Single() as QuerySection;
            replacedert.That(querySection.Name, Is.EqualTo("TestQueryName"));
            replacedert.That(querySection.Query, Is.EqualTo("SELECT * FROM WorkItems Where [System.AreaPath] UNDER '{areaPath}' AND [System.IterationPath] UNDER '{iterationPath}'"));
        }

[Test]
        public void Query_section_parse_specific_workItem_templates()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[query]]
    query: ""SELECT * FROM WorkItems Where [System.AreaPath] UNDER '{areaPath}' AND [System.IterationPath] UNDER '{iterationPath}'""
    template/Product Backlog Item: pbix.docx
    template/Bug: bugaa.docx
    limit: 1
");
            var querySection = def.AllSections.Single() as QuerySection;
            replacedert.That(querySection.GetTemplateForWorkItem("Product Backlog Item"), Is.EqualTo("pbix.docx"));
            replacedert.That(querySection.GetTemplateForWorkItem("Task"), Is.EqualTo(null));
            replacedert.That(querySection.Limit, Is.EqualTo(1));
        }

[Test]
        public void Query_section_parse_filter_work_item_by_type()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[query]]
    query: ""SELECT * FROM WorkItems Where [System.AreaPath] UNDER '{areaPath}' AND [System.IterationPath] UNDER '{iterationPath}'""
    template/Product Backlog Item: pbix.docx
    template/Bug: bugaa.docx
    limit: 1
    workItemTypes: Product Backlog Item,Feature
");
            var querySection = def.AllSections.Single() as QuerySection;
            replacedert.That(querySection.GetTemplateForWorkItem("Product Backlog Item"), Is.EqualTo("pbix.docx"));
            replacedert.That(querySection.GetTemplateForWorkItem("Task"), Is.EqualTo(null));
            replacedert.That(querySection.WorkItemTypes, Is.EquivalentTo(new[] { "Product Backlog Item", "Feature" }));
        }

[Test]
        public void Query_section_without_limit_default_to_max_value()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[query]]
    query: ""SELECT * FROM WorkItems Where [System.AreaPath] UNDER '{areaPath}' AND [System.IterationPath] UNDER '{iterationPath}'""
");
            var querySection = def.AllSections.Single() as QuerySection;
            replacedert.That(querySection.Limit, Is.EqualTo(Int32.MaxValue));
        }

[Test]
        public void Valid_query_section_with_table_file()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[query]]
    query: ""SELECT * FROM WorkItems Where [System.AreaPath] UNDER '{areaPath}' AND [System.IterationPath] UNDER '{iterationPath}'""
    tableTemplate: table.docx
");
            var querySection = def.AllSections.Single() as QuerySection;
            replacedert.That(querySection.TableTemplate, Is.EqualTo("table.docx"));
        }

[Test]
        public void Valid_parametric_query()
        {
            var sut = new ConfigurationParser();
            TemplateDefinition def = sut.ParseTemplateDefinition(
@"[[query]]
    query: ""SELECT
        * 
        FROM workitems
        WHERE
            [System.TeamProject] = @project
            AND [System.WorkItemType] = 'Product Backlog Item'
            AND [System.IterationPath] = '{iterationPath}'""
    parameterSet: iterationPath=Zoalord Insurance\Release 1\Sprint 4
    parameterSet: iterationPath=Zoalord Insurance\Release 1\Sprint 5  
    parameterSet: iterationPath=Zoalord Insurance\Release 1\Sprint 6
");
            var querySection = def.AllSections.Single() as QuerySection;
            replacedert.That(querySection.QueryParameters.Count, Is.EqualTo(3));
            replacedert.That(querySection.QueryParameters[0]["iterationPath"], Is.EqualTo(@"Zoalord Insurance\Release 1\Sprint 4"));
            replacedert.That(querySection.QueryParameters[1]["iterationPath"], Is.EqualTo(@"Zoalord Insurance\Release 1\Sprint 5"));
            replacedert.That(querySection.QueryParameters[2]["iterationPath"], Is.EqualTo(@"Zoalord Insurance\Release 1\Sprint 6"));
        }

[Test]
        public void Basic_KeyValue()
        {
            var keyValue = ConfigurationParser.KeyValue.Parse("key: value");
            replacedert.That(keyValue.Key, Is.EqualTo("key"));
            replacedert.That(keyValue.Value, Is.EqualTo("value"));
        }

[Test]
        public void Can_have_more_than_value_with_Single_key()
        {
            var keyValues = ConfigurationParser.KeyValueList.Parse("key: value\nkey: value2").ToArray();
            replacedert.That(keyValues.Length, Is.EqualTo(2));
            replacedert.That(keyValues[0].Key, Is.EqualTo("key"));
            replacedert.That(keyValues[0].Value, Is.EqualTo("value"));
            replacedert.That(keyValues[1].Key, Is.EqualTo("key"));
            replacedert.That(keyValues[1].Value, Is.EqualTo("value2"));
        }

[Test]
        public void Basic_Multiple_KeyValue()
        {
            var keyValues = ConfigurationParser.KeyValueList.Parse("key: value\nkey2: value2").ToArray();
            replacedert.That(keyValues.Length, Is.EqualTo(2));
            replacedert.That(keyValues[0].Key, Is.EqualTo("key"));
            replacedert.That(keyValues[0].Value, Is.EqualTo("value"));
            replacedert.That(keyValues[1].Key, Is.EqualTo("key2"));
            replacedert.That(keyValues[1].Value, Is.EqualTo("value2"));
        }

[Test]
        public void Basic_KeyValue_resilient_to_spaces()
        {
            var keyValue = ConfigurationParser.KeyValue.Parse("key  : value  ");
            replacedert.That(keyValue.Key, Is.EqualTo("key"));
            replacedert.That(keyValue.Value, Is.EqualTo("value"));
        }

[Test]
        public void SingleLine_with_semicolon()
        {
            var keyValue = ConfigurationParser.KeyValue.Parse("key: value:with:semicolon");
            replacedert.That(keyValue.Key, Is.EqualTo("key"));
            replacedert.That(keyValue.Value, Is.EqualTo("value:with:semicolon"));
        }

[Test]
        public void MultiLine_key_value()
        {
            var keyValue = ConfigurationParser.MultiLineKeyValue.Parse(@"key: ""value

value2

value3""");
            replacedert.That(keyValue.Key, Is.EqualTo("key"));
            replacedert.That(keyValue.Value, Is.EqualTo("value\r\n\r\nvalue2\r\n\r\nvalue3"));
        }

[Test]
        public void MultiLine_key_value_query()
        {
            var keyValue = ConfigurationParser.MultiLineKeyValue.Parse(
      @"query: ""SELECT
        * 
        FROM workitems
        WHERE
            [System.TeamProject] = @project
            AND [System.WorkItemType] = 'Product Backlog Item'
            AND [System.IterationPath] = '{iterationPath}'""");
            replacedert.That(keyValue.Key, Is.EqualTo("query"));
            replacedert.That(keyValue.Value.Contains("[System.TeamProject] = @project"));
        }

[Test]
        public void MultiLine_key_value_query_plus_parameter()
        {
            var keyValue = ConfigurationParser.MultiLineKeyValue.Parse(
      @"query: ""SELECT
        * 
        FROM workitems
        WHERE
            [System.TeamProject] = @project
            AND [System.WorkItemType] = 'Product Backlog Item'
            AND [System.IterationPath] = '{iterationPath}'""
        queryParameter: test");
            replacedert.That(keyValue.Key, Is.EqualTo("query"));
            replacedert.That(keyValue.Value.Contains("[System.TeamProject] = @project"));
        }

[Test]
        public void MultiLine_key_value_can_contain_square_bracket()
        {
            var keyValue = ConfigurationParser.MultiLineKeyValue.Parse(@"key: ""value
[value2]
value3""");
            replacedert.That(keyValue.Key, Is.EqualTo("key"));
            replacedert.That(keyValue.Value, Is.EqualTo("value\r\n[value2]\r\nvalue3"));
        }

[Test]
        public void MultiLine_key_value_can_contain_semicolon()
        {
            var keyValue = ConfigurationParser.MultiLineKeyValue.Parse(@"key: ""value
value:[with]:semicolon
:value3""");
            replacedert.That(keyValue.Key, Is.EqualTo("key"));
            replacedert.That(keyValue.Value, Is.EqualTo("value\r\nvalue:[with]:semicolon\r\n:value3"));
        }

[Test]
        public void Single_parameter_set()
        {
            var parameterList = ConfigurationParser.ParameterSetList.Parse(@"param1=a|param2=b").ToArray();
            replacedert.That(parameterList.Length, Is.EqualTo(2));
            replacedert.That(parameterList[0].Key, Is.EqualTo("param1"));
            replacedert.That(parameterList[0].Value, Is.EqualTo("a"));
            replacedert.That(parameterList[1].Key, Is.EqualTo("param2"));
            replacedert.That(parameterList[1].Value, Is.EqualTo("b"));
        }

[Test]
        public void Parameter_without_default_value_and_other_line()
        {
            var keyValue = ParameterSection.Parameter.Parse(@"key
otherline");
            replacedert.That(keyValue.Key, Is.EqualTo("key"));
            replacedert.That(keyValue.Value, Is.EqualTo(""));
        }

[Test]
        public void Parameter_without_default_value_and_other_line_many_parse()
        {
            var keyValue = ParameterSection.Parser.Parse(@"key
otherline");
            replacedert.That(keyValue.Parameters.Count, Is.EqualTo(2));
            replacedert.That(keyValue.Parameters.Keys, Is.EquivalentTo(new[] { "key", "otherline"}));
        }

[Test]
        public void Verify_correct_number_of_templates_is_scanned()
        {
            var sut = new TemplateManager(GetTemplateFolder("1"));
            replacedert.That(sut.TemplateCount, Is.EqualTo(4));
        }

[Test]
        public void Verify_auto_parsing_of_structure_file()
        {
            var sut = new TemplateManager(GetTemplateFolder("1"));
            var template = sut.GetWordDefinitionTemplate("TemplateStructure");
            replacedert.That(template, Is.Not.Null);
            replacedert.That(template.TemplateDefinition, Is.Not.Null);
            replacedert.That(template.TemplateDefinition.AllSections.Length, Is.EqualTo(2));
            replacedert.That(template.TemplateDefinition.ParameterSection.Parameters.Keys, Is.EquivalentTo(new[] { "test", "blah" }));
        }

[Test]
        public void Verify_template_with_syntax()
        {
            var sut = new TemplateManager(GetTemplateFolder("1"));
            var template = sut.GetWordDefinitionTemplate("TemplateA");
            replacedert.That(template, Is.Not.Null);
            replacedert.That(template.Name, Is.EqualTo("TemplateA"));

            var expected = Path.Combine(GetTemplateFolder("1"), "TemplateA", "Product Backlog Item.docx");
            replacedert.That(template.GetTemplateFor("Product BACKLOG Item"), Is.EqualTo(expected));
        }

[Test]
        public void TestMeanNormalization()
        {
            FeaturePostProcessing.NormalizeMean(_feats);

            replacedert.Multiple(() =>
            {
                replacedert.That(_feats[0], Is.EqualTo(new float[] {  0.8f, 0, -1,  1.6f,  2 }).Within(1e-5));
                replacedert.That(_feats[1], Is.EqualTo(new float[] { -0.2f, 0,  0, -2.4f,  1 }).Within(1e-5));
                replacedert.That(_feats[2], Is.EqualTo(new float[] { -0.2f, 0,  2,  1.6f,  0 }).Within(1e-5));
                replacedert.That(_feats[3], Is.EqualTo(new float[] { -0.2f, 0,  0, -2.4f, -1 }).Within(1e-5));
                replacedert.That(_feats[4], Is.EqualTo(new float[] { -0.2f, 0, -1,  1.6f, -2 }).Within(1e-5));
            });
        }

[Test]
        public void TestVarianceNormalization()
        {
            FeaturePostProcessing.NormalizeVariance(_feats, bias: 0);

            replacedert.Multiple(() =>
            {
                replacedert.That(_feats[0], Is.EqualTo(new float[] { 2.5f, 2, 2.74f,  2.04f,  3.536f }).Within(1e-2));
                replacedert.That(_feats[1], Is.EqualTo(new float[] {    0, 2, 3.65f,      0,  2.83f  }).Within(1e-2));
                replacedert.That(_feats[2], Is.EqualTo(new float[] {    0, 2, 5.48f,  2.04f,  2.12f  }).Within(1e-2));
                replacedert.That(_feats[3], Is.EqualTo(new float[] {    0, 2, 3.65f,      0,  1.41f  }).Within(1e-2));
                replacedert.That(_feats[4], Is.EqualTo(new float[] {    0, 2, 2.74f,  2.04f,  0.71f  }).Within(1e-2));
            });
        }

[Test]
        public void TestDeltas()
        {
            FeaturePostProcessing.AddDeltas(_feats);

            replacedert.That(_feats[0], Is.EqualTo(
                            new float[] {    1,   2,     3,    4,     5,        // main features
                                          -.3f,   0,   .7f, -.4f,  -.5f,        // delta
                                          .02f,   0, -.16f, .04f, -.13f  })     // delta-delta
                                 .Within(1e-5));

            //FeaturePostProcessing.AddDeltas(_feats, includeDeltaDelta: false);

            //replacedert.That(_feats[1], Is.EqualTo(
            //                               new float[] {    0,   2,   4,    0,    4,
            //                                             -.3f,   0, .5f, -.8f, -.8f  }).Within(1e-5));
            //replacedert.That(_feats[2], Is.EqualTo(
            //                               new float[] {    0,   2,   6,    4,    3,
            //                                             -.2f,   0,   0,    0,   -1  }).Within(1e-5));
        }

[Test]
        public void TestFilterCombinations()
        {
            var pre = new PreEmphasisFilter();
            var de = new DeEmphasisFilter();

            var filter = pre * de;

            var samples = new[] { 1.0f, 0.1f, -0.4f, 0.2f };
            var signal = new DiscreteSignal(1, samples);
            var filtered = filter.ApplyTo(signal);

            replacedert.That(filtered.Samples, Is.EqualTo(signal.Samples).Within(1e-7));
        }

private static void replacedertFilterOutput(DiscreteSignal output)
        {
            replacedert.Multiple(() =>
            {
                replacedert.That(output[0], Is.EqualTo(1.0).Within(1e-7));
                replacedert.That(output[1], Is.EqualTo(1.0).Within(1e-7));
                replacedert.That(output[2], Is.EqualTo(0.4).Within(1e-7));
                replacedert.That(output[3], Is.EqualTo(0.04).Within(1e-7));
            });
        }

[Test]
        public void TestParallelIirFir()
        {
            var f1 = new IirFilter(new[] { 1,  0.4 }, new[] { 1, -0.6 });
            var f2 = new FirFilter(new[] { 1, -0.1 });

            var f = f1 + f2;

            replacedert.Multiple(() =>
            {
                replacedert.That(f.Tf.Numerator, Is.EqualTo(new[] { 2, -0.3, 0.06 }).Within(1e-7));
                replacedert.That(f.Tf.Denominator, Is.EqualTo(new[] { 1, -0.6 }).Within(1e-7));
                replacedert.That(f, Is.TypeOf<IirFilter>());
            });
        }