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#347 Implement LANG expression for extracting language of plain liter…
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255 changes: 255 additions & 0 deletions
255
RDFSharp.Test/Query/Mirella/Algebra/Expressions/RDFLangExpressionTest.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,255 @@ | ||
| /* | ||
| Copyright 2012-2024 Marco De Salvo | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| using Microsoft.VisualStudio.TestTools.UnitTesting; | ||
| using System.Data; | ||
| using RDFSharp.Model; | ||
| using RDFSharp.Query; | ||
|
|
||
| namespace RDFSharp.Test.Query | ||
| { | ||
| [TestClass] | ||
| public class RDFLangExpressionTest | ||
| { | ||
| #region Tests | ||
| [TestMethod] | ||
| public void ShouldCreateLangExpressionWithExpression() | ||
| { | ||
| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFAddExpression(new RDFVariable("?V1"), new RDFVariable("?V2"))); | ||
|
|
||
| Assert.IsNotNull(expression); | ||
| Assert.IsNotNull(expression.LeftArgument); | ||
| Assert.IsNull(expression.RightArgument); | ||
| Assert.IsTrue(expression.ToString().Equals("(LANG((?V1 + ?V2)))")); | ||
| Assert.IsTrue(expression.ToString([]).Equals("(LANG((?V1 + ?V2)))")); | ||
| } | ||
|
|
||
| [TestMethod] | ||
| public void ShouldCreateLangExpressionWithVariable() | ||
| { | ||
| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariable("?V1")); | ||
|
|
||
| Assert.IsNotNull(expression); | ||
| Assert.IsNotNull(expression.LeftArgument); | ||
| Assert.IsNull(expression.RightArgument); | ||
| Assert.IsTrue(expression.ToString().Equals("(LANG(?V1))")); | ||
| Assert.IsTrue(expression.ToString([]).Equals("(LANG(?V1))")); | ||
| } | ||
|
|
||
| [TestMethod] | ||
| public void ShouldThrowExceptionOnCreatingLangExpressionWithExpressionBecauseNullLeftArgument() | ||
| => Assert.ThrowsException<RDFQueryException>(() => new RDFLangExpression(null as RDFExpression)); | ||
|
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||
| [TestMethod] | ||
| public void ShouldThrowExceptionOnCreatingLangExpressionWithVariableBecauseNullLeftArgument() | ||
| => Assert.ThrowsException<RDFQueryException>(() => new RDFLangExpression(null as RDFVariable)); | ||
|
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||
| [TestMethod] | ||
| public void ShouldApplyExpressionWithExpressionAndCalculateResultOnNull() | ||
| { | ||
| DataTable table = new DataTable(); | ||
| table.Columns.Add("?A", typeof(string)); | ||
| DataRow row = table.NewRow(); | ||
| row["?A"] = null; | ||
| table.Rows.Add(row); | ||
| table.AcceptChanges(); | ||
|
|
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| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariableExpression(new RDFVariable("?A"))); | ||
| RDFPatternMember expressionResult = expression.ApplyExpression(table.Rows[0]); | ||
|
|
||
| Assert.IsNotNull(expressionResult); | ||
| Assert.IsTrue(expressionResult.Equals(RDFPlainLiteral.Empty)); | ||
| } | ||
|
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||
| [TestMethod] | ||
| public void ShouldApplyExpressionWithExpressionAndCalculateResultOnResource() | ||
| { | ||
| DataTable table = new DataTable(); | ||
| table.Columns.Add("?A", typeof(string)); | ||
| DataRow row = table.NewRow(); | ||
| row["?A"] = new RDFResource("ex:subj").ToString(); | ||
| table.Rows.Add(row); | ||
| table.AcceptChanges(); | ||
|
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| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariableExpression(new RDFVariable("?A"))); | ||
| RDFPatternMember expressionResult = expression.ApplyExpression(table.Rows[0]); | ||
|
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| Assert.IsNull(expressionResult); | ||
| } | ||
|
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| [TestMethod] | ||
| public void ShouldApplyExpressionWithExpressionAndCalculateResultOnPlainLiteral() | ||
| { | ||
| DataTable table = new DataTable(); | ||
| table.Columns.Add("?A", typeof(string)); | ||
| DataRow row = table.NewRow(); | ||
| row["?A"] = new RDFPlainLiteral("hello").ToString(); | ||
| table.Rows.Add(row); | ||
| table.AcceptChanges(); | ||
|
|
||
| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariableExpression(new RDFVariable("?A"))); | ||
| RDFPatternMember expressionResult = expression.ApplyExpression(table.Rows[0]); | ||
|
|
||
| Assert.IsNotNull(expressionResult); | ||
| Assert.IsTrue(expressionResult.Equals(RDFPlainLiteral.Empty)); | ||
| } | ||
|
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| [TestMethod] | ||
| public void ShouldApplyExpressionWithExpressionAndCalculateResultOnPlainLiteralWithLanguage() | ||
| { | ||
| DataTable table = new DataTable(); | ||
| table.Columns.Add("?A", typeof(string)); | ||
| DataRow row = table.NewRow(); | ||
| row["?A"] = new RDFPlainLiteral("hello","en-US").ToString(); | ||
| table.Rows.Add(row); | ||
| table.AcceptChanges(); | ||
|
|
||
| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariableExpression(new RDFVariable("?A"))); | ||
| RDFPatternMember expressionResult = expression.ApplyExpression(table.Rows[0]); | ||
|
|
||
| Assert.IsNotNull(expressionResult); | ||
| Assert.IsTrue(expressionResult.Equals(new RDFPlainLiteral("EN-US"))); | ||
| } | ||
|
|
||
| [TestMethod] | ||
| public void ShouldApplyExpressionWithExpressionAndCalculateResultOnTypedLiteral() | ||
| { | ||
| DataTable table = new DataTable(); | ||
| table.Columns.Add("?A", typeof(string)); | ||
| DataRow row = table.NewRow(); | ||
| row["?A"] = new RDFTypedLiteral("hello", RDFModelEnums.RDFDatatypes.RDFS_LITERAL).ToString(); | ||
| table.Rows.Add(row); | ||
| table.AcceptChanges(); | ||
|
|
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| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariableExpression(new RDFVariable("?A"))); | ||
| RDFPatternMember expressionResult = expression.ApplyExpression(table.Rows[0]); | ||
|
|
||
| Assert.IsNull(expressionResult); | ||
| } | ||
|
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||
| [TestMethod] | ||
| public void ShouldApplyExpressionWithExpressionAndNotCalculateResultBecauseNotBoundVariable() | ||
| { | ||
| DataTable table = new DataTable(); | ||
| table.Columns.Add("?A", typeof(string)); | ||
| DataRow row = table.NewRow(); | ||
| row["?A"] = new RDFTypedLiteral("45", RDFModelEnums.RDFDatatypes.XSD_NORMALIZEDSTRING).ToString(); | ||
| table.Rows.Add(row); | ||
| table.AcceptChanges(); | ||
|
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| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariableExpression(new RDFVariable("?Q"))); | ||
| RDFPatternMember expressionResult = expression.ApplyExpression(table.Rows[0]); | ||
|
|
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| Assert.IsNull(expressionResult); | ||
| } | ||
|
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||
| [TestMethod] | ||
| public void ShouldApplyExpressionWithVariableAndCalculateResultOnResource() | ||
| { | ||
| DataTable table = new DataTable(); | ||
| table.Columns.Add("?A", typeof(string)); | ||
| DataRow row = table.NewRow(); | ||
| row["?A"] = new RDFResource("ex:subj").ToString(); | ||
| table.Rows.Add(row); | ||
| table.AcceptChanges(); | ||
|
|
||
| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariable("?A")); | ||
| RDFPatternMember expressionResult = expression.ApplyExpression(table.Rows[0]); | ||
|
|
||
| Assert.IsNull(expressionResult); | ||
| } | ||
|
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||
| [TestMethod] | ||
| public void ShouldApplyExpressionWithVariableAndCalculateResultOnPlainLiteral() | ||
| { | ||
| DataTable table = new DataTable(); | ||
| table.Columns.Add("?A", typeof(string)); | ||
| DataRow row = table.NewRow(); | ||
| row["?A"] = new RDFPlainLiteral("hello").ToString(); | ||
| table.Rows.Add(row); | ||
| table.AcceptChanges(); | ||
|
|
||
| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariable("?A")); | ||
| RDFPatternMember expressionResult = expression.ApplyExpression(table.Rows[0]); | ||
|
|
||
| Assert.IsNotNull(expressionResult); | ||
| Assert.IsTrue(expressionResult.Equals(RDFPlainLiteral.Empty)); | ||
| } | ||
|
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||
| [TestMethod] | ||
| public void ShouldApplyExpressionWithVariableAndCalculateResultOnPlainLiteralWithLanguage() | ||
| { | ||
| DataTable table = new DataTable(); | ||
| table.Columns.Add("?A", typeof(string)); | ||
| DataRow row = table.NewRow(); | ||
| row["?A"] = new RDFPlainLiteral("hello", "en-US").ToString(); | ||
| table.Rows.Add(row); | ||
| table.AcceptChanges(); | ||
|
|
||
| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariable("?A")); | ||
| RDFPatternMember expressionResult = expression.ApplyExpression(table.Rows[0]); | ||
|
|
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| Assert.IsNotNull(expressionResult); | ||
| Assert.IsTrue(expressionResult.Equals(new RDFPlainLiteral("EN-US"))); | ||
| } | ||
|
|
||
| [TestMethod] | ||
| public void ShouldApplyExpressionWithVariableAndCalculateResultOnTypedLiteral() | ||
| { | ||
| DataTable table = new DataTable(); | ||
| table.Columns.Add("?A", typeof(string)); | ||
| DataRow row = table.NewRow(); | ||
| row["?A"] = new RDFTypedLiteral("hello", RDFModelEnums.RDFDatatypes.RDFS_LITERAL).ToString(); | ||
| table.Rows.Add(row); | ||
| table.AcceptChanges(); | ||
|
|
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| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariable("?A")); | ||
| RDFPatternMember expressionResult = expression.ApplyExpression(table.Rows[0]); | ||
|
|
||
| Assert.IsNull(expressionResult); | ||
| } | ||
|
|
||
| [TestMethod] | ||
| public void ShouldApplyExpressionWithVariableAndNotCalculateResultBecauseNotBoundVariable() | ||
| { | ||
| DataTable table = new DataTable(); | ||
| table.Columns.Add("?A", typeof(string)); | ||
| DataRow row = table.NewRow(); | ||
| row["?A"] = new RDFTypedLiteral("45", RDFModelEnums.RDFDatatypes.XSD_NORMALIZEDSTRING).ToString(); | ||
| table.Rows.Add(row); | ||
| table.AcceptChanges(); | ||
|
|
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| RDFLangExpression expression = new RDFLangExpression( | ||
| new RDFVariable("?Q")); | ||
| RDFPatternMember expressionResult = expression.ApplyExpression(table.Rows[0]); | ||
|
|
||
| Assert.IsNull(expressionResult); | ||
| } | ||
| #endregion | ||
| } | ||
| } |
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