Test VariantTrack in components-test

Previously it looked like the VariantTrack was being tested, but it really wasn't (the d3 methods were being called with empty arrays). With canvas, the drawing code clearly wasn't being run. Now it is.
hammerlab · Sep 25, 2015 · 638c3ff · 638c3ff
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diff --git a/src/test/components-test.js b/src/test/components-test.js
@@ -81,6 +81,7 @@ describe('pileup', function() {
 
     var ready = (() =>
       drawnObjectsWith(div, '.reference', x => x.letter).length > 0 &&
+      drawnObjectsWith(div, '.variants', x => x.alt).length > 0 &&
       drawnObjectsWith(div, '.genes', x => x.name).length > 0 &&
       drawnObjectsWith(div, '.pileup', x => x.span).length > 0
     );
@@ -90,6 +91,12 @@ describe('pileup', function() {
         var basepairs = drawnObjectsWith(div, '.reference', x => x.letter);
         expect(basepairs).to.have.length.at.least(10);
 
+        var variants = drawnObjectsWith(div, '.variants', x => x.alt);
+        expect(variants).to.have.length(1);
+        expect(variants[0].position).to.equal(125);
+        expect(variants[0].ref).to.equal('G');
+        expect(variants[0].alt).to.equal('T');
+
         var geneTexts = callsOf(div, '.genes', 'fillText');
         expect(geneTexts).to.have.length(1);
         expect(geneTexts[0][1]).to.equal('TP53');

diff --git a/test-data/snv.chr17.vcf b/test-data/snv.chr17.vcf
@@ -16,6 +16,7 @@
 ##FORMAT=<ID=FREQ,Number=1,Type=String,Description="Variant allele frequency">
 ##FORMAT=<ID=DP4,Number=4,Type=Integer,Description="Strand read counts: ref/fwd, ref/rev, var/fwd, var/rev">
 #CHROM	POS	ID	REF	ALT	QUAL	FILTER	INFO	FORMAT	NORMAL	TUMOR
+17	125	.	G	T	.	PASS	DP=81;SS=1;SSC=2;GPV=4.6768E-16;SPV=5.4057E-1	GT:GQ:DP:RD:AD:FREQ:DP4	0/1:.:44:22:22:50%:16,6,9,13	0/1:.:37:18:19:51.35%:10,8,10,9
 17	7512444	.	G	T	.	PASS	DP=81;SS=1;SSC=2;GPV=4.6768E-16;SPV=5.4057E-1	GT:GQ:DP:RD:AD:FREQ:DP4	0/1:.:44:22:22:50%:16,6,9,13	0/1:.:37:18:19:51.35%:10,8,10,9
 17	7512454	.	C	A	.	PASS	DP=68;SS=1;SSC=1;GPV=1.4855E-11;SPV=7.5053E-1	GT:GQ:DP:RD:AD:FREQ:DP4	0/1:.:32:17:15:46.88%:9,8,9,6	0/1:.:36:21:15:41.67%:8,13,8,7
 17	7512544	.	C	T	.	PASS	DP=72;SS=1;SSC=7;GPV=3.6893E-16;SPV=1.8005E-1	GT:GQ:DP:RD:AD:FREQ:DP4	0/1:.:39:19:19:50%:8,11,11,8	0/1:.:33:12:21:63.64%:5,7,8,13