public void ImportFastaTest()
{
SrmDocument document = new SrmDocument(SrmSettingsList.GetDefault0_6());
IdentityPath path = IdentityPath.ROOT;
SrmDocument docFasta = document.ImportFasta(new StringReader(ExampleText.TEXT_FASTA_YEAST), false, path, out path);
AssertEx.IsDocumentState(docFasta, 1, 2, 98, 311);
Assert.AreEqual("YAL001C", ((PeptideGroupDocNode)docFasta.Children[0]).Name);
Assert.AreEqual("YAL002W", ((PeptideGroupDocNode)docFasta.Children[1]).Name);
Assert.AreEqual(1, path.Length);
Assert.IsInstanceOfType(path.GetIdentity(0), typeof(FastaSequence));
Assert.AreEqual("YAL001C", ((FastaSequence)path.GetIdentity(0)).Name);
int maxMz = docFasta.Settings.TransitionSettings.Instrument.MaxMz - 120;
foreach (PeptideGroupDocNode nodeGroup in docFasta.Children)
{
Assert.IsInstanceOfType(nodeGroup.Id, typeof(FastaSequence));
int lastEnd = docFasta.Settings.PeptideSettings.Filter.ExcludeNTermAAs - 1;
foreach (PeptideDocNode nodePeptide in nodeGroup.Children)
{
Peptide peptide = nodePeptide.Peptide;
char prev = peptide.PrevAA;
if (prev != 'K' && prev != 'R')
{
Assert.Fail("Unexpected preceding cleavage at {0}", prev);
}
string seq = peptide.Sequence;
char last = seq[seq.Length - 1];
if (last != 'K' && last != 'R' && peptide.NextAA != '-')
{
Assert.Fail("Unexpected cleavage at {0}", last);
}
Assert.IsNotNull(peptide.Begin);
Assert.IsNotNull(peptide.End);
// Make sure peptides are ordered, and not overlapping
if (peptide.Begin.Value < lastEnd)
{
Assert.Fail("Begin {0} less than last end {1}.", peptide.Begin.Value, lastEnd);
}
lastEnd = peptide.End.Value;
IList <DocNode> nodesTrans = ((DocNodeParent)nodePeptide.Children[0]).Children;
int trans = nodesTrans.Count;
if (trans < 3)
{
// Might have been cut off by the instrument limit.
if ((trans == 0 && ((TransitionGroupDocNode)nodePeptide.Children[0]).PrecursorMz < maxMz) ||
(trans > 0 && ((TransitionDocNode)nodesTrans[0]).Mz < maxMz))
{
Assert.Fail("Found {0} transitions, expecting 3.", trans);
}
}
// Might have extra proline transitions
else if (trans > 3 && peptide.Sequence.IndexOf('P') == -1)
{
Assert.Fail("Found {0} transitions, expecting 3.", trans);
}
// Make sure transitions are ordered correctly
IonType lastType = IonType.a;
int lastOffset = -1;
foreach (TransitionDocNode nodeTran in nodesTrans)
{
Transition transition = nodeTran.Transition;
if (lastType == transition.IonType)
{
Assert.IsTrue(transition.CleavageOffset > lastOffset);
}
else
{
Assert.IsTrue(((int)transition.IonType) > ((int)lastType));
}
lastType = transition.IonType;
lastOffset = transition.CleavageOffset;
}
}
}
// Make sure old document is unmodified.
Assert.AreEqual(0, document.RevisionIndex);
Assert.AreEqual(0, document.PeptideTransitionCount);
// Re-paste of fasta should have no impact.
// path = IdentityPath.ROOT; use null as substitute for Root
SrmDocument docFasta2 = docFasta.ImportFasta(new StringReader(ExampleText.TEXT_FASTA_YEAST), false, null, out path);
// Returns the original document to avoid adding undo record in running app
Assert.AreSame(docFasta, docFasta2);
Assert.IsNull(path);
// Discard double-insert document, and add peptides list into previous document
path = IdentityPath.ROOT;
SrmDocument docPeptides = docFasta.ImportFasta(new StringReader(TEXT_BOVINE_PEPTIDES1), true, path, out path);
AssertEx.IsDocumentState(docPeptides, 2, 3, 111, 352);
Assert.AreEqual(1, path.Length);
Assert.IsNotInstanceOfType(path.GetIdentity(0), typeof(FastaSequence));
Assert.AreEqual("Peptides1", ((PeptideGroupDocNode)docPeptides.FindNode(path)).Name);
PeptideGroupDocNode nodePepList = (PeptideGroupDocNode)docPeptides.Children[2];
Assert.IsNotInstanceOfType(nodePepList.Id, typeof(FastaSequence));
// Make sure other two nodes are unchanged
Assert.AreSame(docFasta.Children[0], docPeptides.Children[0]);
Assert.AreSame(docFasta.Children[1], docPeptides.Children[1]);
foreach (PeptideDocNode nodePeptide in nodePepList.Children)
{
char prev = nodePeptide.Peptide.PrevAA;
char next = nodePeptide.Peptide.NextAA;
if (prev != 'X' || next != 'X')
{
Assert.Fail("Expected amino acids X, but found {0} or {1}", prev, next);
}
string seq = nodePeptide.Peptide.Sequence;
char last = seq[seq.Length - 1];
// Just because they are tryptic peptides in the list
if (last != 'K' && last != 'R' && nodePeptide.Peptide.NextAA != '-')
{
Assert.Fail("Unexpected cleavage at {0}", last);
}
Assert.IsNull(nodePeptide.Peptide.Begin);
Assert.IsNull(nodePeptide.Peptide.End);
IList <DocNode> nodesTrans = ((DocNodeParent)nodePeptide.Children[0]).Children;
int trans = nodesTrans.Count;
if (trans < 3)
{
// Might have been cut off by the instrument limit.
if ((trans == 0 && ((TransitionGroupDocNode)nodePeptide.Children[0]).PrecursorMz < maxMz) ||
(trans > 0 && ((TransitionDocNode)nodesTrans[0]).Mz < maxMz))
{
Assert.Fail("Found {0} transitions, expecting 3.", trans);
}
}
// Might have extra proline transitions
else if (trans > 3 && nodePeptide.Peptide.Sequence.IndexOf('P') == -1)
{
Assert.Fail("Found {0} transitions, expecting 3.", trans);
}
}
// Make sure old documents are unmodified.
AssertEx.IsDocumentState(document, 0, 0, 0, 0);
AssertEx.IsDocumentState(docFasta, 1, 2, 98, 311);
AssertEx.IsDocumentState(docPeptides, 2, 3, 111, 352);
// Add peptides in all possible locations.
// 1. Root (already done)
// 1. Before another group
path = docPeptides.GetPathTo(0);
SrmDocument docPeptides2 = docPeptides.ImportFasta(new StringReader(TEXT_BOVINE_PEPTIDES1), true, path, out path);
AssertEx.IsDocumentState(docPeptides2, 3, 4, 124, 393);
Assert.IsNotInstanceOfType(docPeptides2.Children[0].Id, typeof(FastaSequence));
Assert.AreEqual(docPeptides2.Children[0].Id, path.GetIdentity(0));
Assert.IsInstanceOfType(docPeptides2.Children[1].Id, typeof(FastaSequence));
// Make sure previously existing groups are unchanged
Assert.AreSame(docPeptides.Children[0], docPeptides2.Children[1]);
Assert.AreSame(docPeptides.Children[1], docPeptides2.Children[2]);
Assert.AreSame(docPeptides.Children[2], docPeptides2.Children[3]);
// 2. Inside a FASTA group
path = docPeptides2.GetPathTo((int)SrmDocument.Level.Transitions, 100);
SrmDocument docPeptides3 = docPeptides2.ImportFasta(new StringReader(TEXT_BOVINE_PEPTIDES1), true, path, out path);
AssertEx.IsDocumentState(docPeptides3, 4, 5, 137, 434);
Assert.AreEqual(2, docPeptides3.FindNodeIndex(path));
// Make sure previously existing groups are unchanged
Assert.AreSame(docPeptides2.Children[1], docPeptides3.Children[1]);
Assert.AreSame(docPeptides2.Children[2], docPeptides3.Children[3]);
// 3. To a peptide list
// a. Same peptides
path = docPeptides2.GetPathTo(0);
docPeptides3 = docPeptides2.ImportFasta(new StringReader(TEXT_BOVINE_PEPTIDES1), true, path, out path);
// No longer filter repeated peptides, because they are useful for explicit modifictations.
Assert.AreNotSame(docPeptides2, docPeptides3);
Assert.IsNotNull(path);
// b. Different paptides
path = docPeptides2.GetPathTo(0);
IdentityPath pathFirstPep = docPeptides3.GetPathTo((int)SrmDocument.Level.Molecules, 0);
docPeptides3 = docPeptides2.ImportFasta(new StringReader(TEXT_BOVINE_PEPTIDES2), true, path, out path);
AssertEx.IsDocumentState(docPeptides3, 4, 4, 140, 448);
Assert.AreSame(docPeptides2.Children[0].Id, docPeptides3.Children[0].Id);
Assert.AreNotSame(docPeptides2.Children[0], docPeptides3.Children[0]);
Assert.AreEqual("LVTDLTK", ((PeptideDocNode)docPeptides3.FindNode(path)).Peptide.Sequence);
int index = docPeptides3.FindNodeIndex(path);
IdentityPath pathPreceding = docPeptides3.GetPathTo(path.Depth, index - 1);
Assert.AreEqual("IVGYLDEEGVLDQNR", ((PeptideDocNode)docPeptides3.FindNode(pathPreceding)).Peptide.Sequence);
Assert.AreEqual(0, docPeptides3.FindNodeIndex(pathFirstPep));
// 4. At a peptide in a peptide list
path = docPeptides2.GetPathTo((int)SrmDocument.Level.Molecules, 0);
docPeptides3 = docPeptides2.ImportFasta(new StringReader(TEXT_BOVINE_PEPTIDES2), true, path, out path);
AssertEx.IsDocumentState(docPeptides3, 4, 4, 140, 448);
Assert.AreSame(docPeptides2.Children[0].Id, docPeptides3.Children[0].Id);
Assert.AreNotSame(docPeptides2.Children[0], docPeptides3.Children[0]);
Assert.AreEqual(0, docPeptides3.FindNodeIndex(path));
Assert.AreEqual(16, docPeptides3.FindNodeIndex(pathFirstPep));
// 5. Inside a peptide in a peptide list
path = docPeptides2.GetPathTo((int)SrmDocument.Level.Transitions, 0);
docPeptides3 = docPeptides2.ImportFasta(new StringReader(TEXT_BOVINE_PEPTIDES2), true, path, out path);
AssertEx.IsDocumentState(docPeptides3, 4, 4, 140, 448);
Assert.AreSame(docPeptides2.Children[0].Id, docPeptides3.Children[0].Id);
Assert.AreNotSame(docPeptides2.Children[0], docPeptides3.Children[0]);
Assert.AreEqual(1, docPeptides3.FindNodeIndex(path));
Assert.AreEqual(0, docPeptides3.FindNodeIndex(pathFirstPep));
}
public void MoveNodeTest()
{
SrmDocument document = new SrmDocument(SrmSettingsList.GetDefault());
IdentityPath path = IdentityPath.ROOT;
SrmDocument docFasta = document.ImportFasta(new StringReader(ExampleText.TEXT_FASTA_YEAST), false, path, out path);
// 1. From peptide group to root
SrmDocument docMoved = docFasta.MoveNode(docFasta.GetPathTo(0), IdentityPath.ROOT, out path);
Assert.AreEqual(1, docMoved.FindNodeIndex(path));
Assert.AreSame(docFasta.Children[0], docMoved.Children[1]);
Assert.AreSame(docFasta.Children[1], docMoved.Children[0]);
// 2. From peptide group to before other peptide group
docMoved = docFasta.MoveNode(docFasta.GetPathTo(1), docFasta.GetPathTo(0), out path);
Assert.AreEqual(0, docMoved.FindNodeIndex(path));
Assert.AreSame(docFasta.Children[0], docMoved.Children[1]);
Assert.AreSame(docFasta.Children[1], docMoved.Children[0]);
// Some peptide lists
IdentityPath pathPeptides;
SrmDocument docPeptides = docFasta.ImportFasta(new StringReader(TEXT_BOVINE_PEPTIDES2), true,
docFasta.GetPathTo(1), out pathPeptides);
docPeptides = docPeptides.ImportFasta(new StringReader(TEXT_BOVINE_PEPTIDES1), true,
IdentityPath.ROOT, out path);
docPeptides = docPeptides.MoveNode(path, pathPeptides, out pathPeptides);
Assert.AreEqual(1, docPeptides.FindNodeIndex(pathPeptides));
// 3. Peptide from one group to another
IdentityPath fromParent = docPeptides.GetPathTo(2);
IdentityPath from = new IdentityPath(fromParent, ((DocNodeParent)docPeptides.FindNode(fromParent)).Children[0].Id);
SrmDocument docPeptides2 = docPeptides.MoveNode(from, pathPeptides, out path);
Assert.AreEqual(pathPeptides, path.Parent);
Assert.AreEqual(((DocNodeParent)docPeptides.Children[1]).Children.Count,
((DocNodeParent)docPeptides2.Children[1]).Children.Count - 1);
Assert.AreEqual(((DocNodeParent)docPeptides.Children[2]).Children.Count,
((DocNodeParent)docPeptides2.Children[2]).Children.Count + 1);
// Though moved to a different group, this should not have changed the overall
// peptide order, since it was moved from the beginning of one group to the end
// of the group before it.
Assert.AreEqual(docPeptides.FindNodeIndex(from), docPeptides2.FindNodeIndex(path));
// 4. To before another peptide
from = new IdentityPath(fromParent, ((DocNodeParent)docPeptides2.FindNode(fromParent)).Children[0].Id);
IdentityPath path2;
SrmDocument docPeptides3 = docPeptides2.MoveNode(from, path, out path2);
Assert.AreEqual(pathPeptides, path.Parent);
Assert.AreEqual(((DocNodeParent)docPeptides2.Children[1]).Children.Count,
((DocNodeParent)docPeptides3.Children[1]).Children.Count - 1);
Assert.AreEqual(((DocNodeParent)docPeptides2.Children[2]).Children.Count,
((DocNodeParent)docPeptides3.Children[2]).Children.Count + 1);
// Relative to all peptides, index should be 1 less than before
Assert.AreEqual(docPeptides2.FindNodeIndex(from), docPeptides3.FindNodeIndex(path2) + 1);
// 5. To within another peptide
IdentityPath to = new IdentityPath(path, ((DocNodeParent)docPeptides3.FindNode(path)).Children[0].Id);
SrmDocument docPeptides4 = docPeptides3.MoveNode(path2, to, out path);
// Should not have changed to count in the group
Assert.AreEqual(((DocNodeParent)docPeptides3.Children[1]).Children.Count,
((DocNodeParent)docPeptides4.Children[1]).Children.Count);
// Relative to all peptides, should have been returned to original order
Assert.AreEqual(docPeptides2.FindNodeIndex(from), docPeptides4.FindNodeIndex(path));
// Make sure expected exceptions are thrown
Assert.IsNull(docPeptides4.FindNode(from));
AssertEx.ThrowsException <IdentityNotFoundException>(() =>
docPeptides4.MoveNode(from, to, out path));
AssertEx.ThrowsException <InvalidOperationException>(() =>
docPeptides2.MoveNode(from, docPeptides2.GetPathTo(0), out path));
AssertEx.ThrowsException <InvalidOperationException>(() =>
docPeptides3.MoveNode(docPeptides2.GetPathTo((int)SrmDocument.Level.Molecules, 0), to, out path));
AssertEx.ThrowsException <InvalidOperationException>(() =>
docPeptides3.MoveNode(docPeptides2.GetPathTo((int)SrmDocument.Level.Transitions, 0), to, out path));
}
