Added MethodCallExpression support (#53)
* MemberAccessExpression / UnaryExpression / MethodCallExpression support as long as it evaluatues to a boolean value.pull/55/head
parent
6b66162e56
commit
845e92c6e1
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@ -24,13 +24,16 @@ namespace RulesEngine.ExpressionBuilders
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{
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_reSettings = reSettings;
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}
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internal override Expression<Func<RuleInput, RuleResultTree>> BuildExpressionForRule(Rule rule, IEnumerable<ParameterExpression> typeParamExpressions, ParameterExpression ruleInputExp)
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{
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try
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{
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var config = new ParsingConfig { CustomTypeProvider = new CustomTypeProvider(_reSettings.CustomTypes) };
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var e = DynamicExpressionParser.ParseLambda(config, typeParamExpressions.ToArray(), null, rule.Expression);
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var body = (BinaryExpression)e.Body;
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var body = e.Body is BinaryExpression binaryExpression
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? binaryExpression
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: Expression.MakeBinary(ExpressionType.And, e.Body, Expression.Constant(true));
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return Helpers.ToResultTreeExpression(rule, null, body, typeParamExpressions, ruleInputExp);
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}
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catch (Exception ex)
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@ -52,6 +55,5 @@ namespace RulesEngine.ExpressionBuilders
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var e = DynamicExpressionParser.ParseLambda(config, typeParamExpressions.ToArray(), null, param.Expression);
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return e.Body;
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}
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}
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}
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@ -124,7 +124,6 @@ namespace RulesEngine.UnitTest
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});
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}
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[Theory]
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[InlineData("rules1.json")]
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public void ExecuteRule_InvalidWorkFlow_ThrowsException(string ruleFileName)
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@ -149,7 +148,6 @@ namespace RulesEngine.UnitTest
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Assert.Throws<ArgumentException>(() => re.ExecuteRule("inputWorkflow", input1, input2, input3));
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}
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[Theory]
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[InlineData("rules1.json")]
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public void ClearWorkflow_RemovesAllWorkflow(string ruleFileName)
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@ -165,7 +163,6 @@ namespace RulesEngine.UnitTest
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Assert.Throws<ArgumentException>(() => re.ExecuteRule("inputWorkflowReference", input1, input2, input3));
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}
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[Theory]
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[InlineData("rules1.json")]
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[InlineData("rules2.json")]
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@ -190,7 +187,6 @@ namespace RulesEngine.UnitTest
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Assert.Contains(result, c => c.IsSuccess);
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}
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[Theory]
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[InlineData("rules4.json")]
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public void RulesEngine_Execute_Rule_For_Nested_Rule_Params_Returns_Success(string ruleFileName)
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@ -255,6 +251,61 @@ namespace RulesEngine.UnitTest
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Assert.All(result, c => Assert.Equal(expectedResult, c.IsSuccess));
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}
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[Theory]
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[InlineData("rules6.json")]
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public void ExecuteRule_RuleWithMethodExpression_ReturnsSucess(string ruleFileName)
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{
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var re = GetRulesEngine(ruleFileName);
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Func<bool> func = () => true;
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dynamic input1 = new ExpandoObject();
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input1.Property1 = "hello";
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input1.Boolean = false;
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input1.Method = func;
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var utils = new TestInstanceUtils();
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List<RuleResultTree> result = re.ExecuteRule("inputWorkflow", new RuleParameter("input1", input1));
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Assert.NotNull(result);
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Assert.IsType<List<RuleResultTree>>(result);
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Assert.All(result, c => Assert.True(c.IsSuccess));
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}
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[Theory]
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[InlineData("rules7.json")]
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public void ExecuteRule_RuleWithUnaryExpression_ReturnsSucess(string ruleFileName)
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{
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var re = GetRulesEngine(ruleFileName);
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dynamic input1 = new ExpandoObject();
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input1.Boolean = false;
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var utils = new TestInstanceUtils();
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List<RuleResultTree> result = re.ExecuteRule("inputWorkflow", new RuleParameter("input1", input1));
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Assert.NotNull(result);
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Assert.IsType<List<RuleResultTree>>(result);
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Assert.All(result, c => Assert.True(c.IsSuccess));
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}
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[Theory]
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[InlineData("rules8.json")]
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public void ExecuteRule_RuleWithMemberAccessExpression_ReturnsSucess(string ruleFileName)
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{
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var re = GetRulesEngine(ruleFileName);
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dynamic input1 = new ExpandoObject();
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input1.Boolean = false;
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var utils = new TestInstanceUtils();
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List<RuleResultTree> result = re.ExecuteRule("inputWorkflow", new RuleParameter("input1", input1));
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Assert.NotNull(result);
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Assert.IsType<List<RuleResultTree>>(result);
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Assert.All(result, c => Assert.False(c.IsSuccess));
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}
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private RulesEngine CreateRulesEngine(WorkflowRules workflow)
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{
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var json = JsonConvert.SerializeObject(workflow);
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@ -277,7 +328,6 @@ namespace RulesEngine.UnitTest
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return new RulesEngine(new string[] { data, injectWorkflowStr }, mockLogger.Object);
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}
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private dynamic GetInput1()
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{
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var converter = new ExpandoObjectConverter();
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@ -334,14 +384,14 @@ namespace RulesEngine.UnitTest
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}
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[ExcludeFromCodeCoverage]
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private class TestInstanceUtils{
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public bool CheckExists(string str){
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private class TestInstanceUtils
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{
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public bool CheckExists(string str)
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{
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if (str != null && str.Length > 0)
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return true;
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return false;
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}
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}
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}
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}
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}
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@ -33,6 +33,15 @@
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<None Update="TestData\rules2.json">
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<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
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</None>
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<None Update="TestData\rules8.json">
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<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
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</None>
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<None Update="TestData\rules7.json">
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<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
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</None>
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<None Update="TestData\rules6.json">
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<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
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</None>
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<None Update="TestData\rules5.json">
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<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
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</None>
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@ -0,0 +1,29 @@
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{
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"WorkflowName": "inputWorkflow",
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"Rules": [
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{
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"RuleName": "GiveDiscount10",
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"SuccessEvent": "10",
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"ErrorMessage": "One or more adjust rules failed.",
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"ErrorType": "Error",
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"RuleExpressionType": "LambdaExpression",
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"Expression": "input1.Property1.Contains(\"hell\")"
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},
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{
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"RuleName": "GiveDiscount20",
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"SuccessEvent": "20",
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"ErrorMessage": "One or more adjust rules failed.",
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"ErrorType": "Error",
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"RuleExpressionType": "LambdaExpression",
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"Expression": "input1.Property1.Contains(\"hell\") && !input1.Boolean"
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},
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{
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"RuleName": "GiveDiscount30",
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"SuccessEvent": "30",
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"ErrorMessage": "One or more adjust rules failed.",
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"ErrorType": "Error",
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"RuleExpressionType": "LambdaExpression",
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"Expression": "input1.Method.Invoke()"
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}
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]
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}
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@ -0,0 +1,21 @@
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{
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"WorkflowName": "inputWorkflow",
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"Rules": [
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{
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"RuleName": "GiveDiscount10",
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"SuccessEvent": "10",
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"ErrorMessage": "One or more adjust rules failed.",
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"ErrorType": "Error",
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"RuleExpressionType": "LambdaExpression",
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"Expression": "!input1.Boolean"
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},
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{
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"RuleName": "GiveDiscount20",
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"SuccessEvent": "20",
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"ErrorMessage": "One or more adjust rules failed.",
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"ErrorType": "Error",
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"RuleExpressionType": "LambdaExpression",
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"Expression": "!input1.Boolean && true"
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}
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]
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}
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@ -0,0 +1,21 @@
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{
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"WorkflowName": "inputWorkflow",
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"Rules": [
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{
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"RuleName": "GiveDiscount10",
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"SuccessEvent": "10",
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"ErrorMessage": "One or more adjust rules failed.",
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"ErrorType": "Error",
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"RuleExpressionType": "LambdaExpression",
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"Expression": "input1.Boolean"
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},
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{
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"RuleName": "GiveDiscount20",
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"SuccessEvent": "20",
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"ErrorMessage": "One or more adjust rules failed.",
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"ErrorType": "Error",
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"RuleExpressionType": "LambdaExpression",
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"Expression": "input1.Boolean && true || (input1.Boolean)"
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}
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]
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}
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