public void NodeLabel_CreateNodeLabelWithReplacementVariablePResent_ExpectedLabelToIncludeReplacementVariables()
{
// Arrange
Predicate predicate = new Predicate('P', new List <char>()
{
'x', 'y'
});
HashSet <Proposition> propositions = new HashSet <Proposition>()
{
predicate
};
SemanticTableauxElement semanticTableauxElement = new SemanticTableauxElement(propositions);
semanticTableauxElement.ReplacementVariables = new HashSet <char>()
{
'a', 'b'
};
semanticTableauxElement.NodeNumber = 1;
// Act
string actualNodeLabel = semanticTableauxElement.NodeLabel();
string expectedNodeLabel = $"node1[ label = \"< a, b >\nP(x, y)\" ]\n";
// Assert
actualNodeLabel.Should().Be(expectedNodeLabel, "Because that's the format required for graphviz plus our own choice of display");
}
public void NodeLabel_CreateNodeLabelWithBothChildrenAndNotClosed_ExpectedLabelWithChildrenIncluded()
{
// Arrange
Disjunction disjunction = new Disjunction();
disjunction.LeftSuccessor = new Proposition('B');
disjunction.RightSuccessor = new Proposition('R');
HashSet <Proposition> propositions = new HashSet <Proposition>()
{
disjunction
};
SemanticTableauxElement semanticTableauxElement = new SemanticTableauxElement(propositions);
semanticTableauxElement.NodeNumber = 1;
semanticTableauxElement.LeftChild.NodeNumber = 2;
semanticTableauxElement.RightChild.NodeNumber = 3;
// Act
string actualNodeLabel = semanticTableauxElement.NodeLabel();
string expectedNodeLabel = $"node{semanticTableauxElement.NodeNumber}[ label = \"(B | R)\" ]\n";
expectedNodeLabel += $"node1 -- node2\n";
expectedNodeLabel += $"node{semanticTableauxElement.NodeNumber + 1}[ label = \"B\" ]\n";
expectedNodeLabel += $"node1 -- node3\n";
expectedNodeLabel += $"node{semanticTableauxElement.NodeNumber + 2}[ label = \"R\" ]\n";
// Assert
actualNodeLabel.Should().Be(expectedNodeLabel, "Because that's the format required for graphviz plus our own choice of display");
}
public void NodeLabel_CreateNodeLabelWithoutChildrenAndNotClosed_ExpectedLabelWithOnlyPropositions()
{
// Arrange
HashSet <Proposition> propositions = new HashSet <Proposition>()
{
new Proposition('P')
};
SemanticTableauxElement semanticTableauxElement = new SemanticTableauxElement(propositions);
semanticTableauxElement.NodeNumber = 1;
// Act
string actualNodeLabel = semanticTableauxElement.NodeLabel();
string expectedNodeLabel = $"node{semanticTableauxElement.NodeNumber}[ label = \"P\" ]\n";
// Assert
actualNodeLabel.Should().Be(expectedNodeLabel, "Because that's the format required for graphviz plus our own choice of display");
}
public void NodeLabel_CreateNodeLabelWithConstantContradictionToClose_ExpectedLabelWithColorRed()
{
// Arrange
False contradiction = new False();
HashSet <Proposition> propositions = new HashSet <Proposition>()
{
contradiction
};
SemanticTableauxElement semanticTableauxElement = new SemanticTableauxElement(propositions);
semanticTableauxElement.NodeNumber = 1;
// Act
string actualNodeLabel = semanticTableauxElement.NodeLabel();
string expectedNodeLabel = $"node{semanticTableauxElement.NodeNumber}[ label = \"0\", color = red ]\n";
// Assert
actualNodeLabel.Should().Be(expectedNodeLabel, "Because that's the format required for graphviz plus our own choice of display");
}
