Fix broken tests due to missing sample data.

test/core/json-test.js

@@ -9,7 +9,7 @@ suite.addBatch({
   "json": {
     topic: function() {
       var cb = this.callback;
-      d3.json("examples/data/sample.json", function(error, json) {
+      d3.json("test/data/sample.json", function(error, json) {
         cb(null, json);
       });
     },

test/core/text-test.js

@@ -9,7 +9,7 @@ suite.addBatch({
   "text": {
     topic: function() {
       var cb = this.callback;
-      d3.text("examples/data/sample.txt", function(error, text) {
+      d3.text("test/data/sample.txt", function(error, text) {
         cb(null, text);
       });
     },
@@ -22,7 +22,7 @@ suite.addBatch({
     "": {
       topic: function() {
         var cb = this.callback;
-        d3.text("examples/data/sample.txt", "text/plain+sample", function(error, text) {
+        d3.text("test/data/sample.txt", "text/plain+sample", function(error, text) {
           cb(null, text);
         });
       },

test/core/xhr-test.js

@@ -9,12 +9,12 @@ suite.addBatch({
   "xhr": {
     topic: function() {
       var cb = this.callback;
-      d3.xhr("examples/data/sample.txt", function(error, req) {
+      d3.xhr("test/data/sample.txt", function(error, req) {
         cb(null, req);
       });
     },
     "makes an asynchronous HTTP request": function(req) {
-      assert.equal(req._info.url, "examples/data/sample.txt");
+      assert.equal(req._info.url, "test/data/sample.txt");
       assert.isTrue(req._info.async);
     },
     "invokes the callback with the request object": function(req) {
@@ -30,7 +30,7 @@ suite.addBatch({
     "": {
       topic: function() {
         var cb = this.callback;
-        d3.xhr("examples/data/sample.txt", "text/plain", function(error, req) {
+        d3.xhr("test/data/sample.txt", "text/plain", function(error, req) {
           cb(null, req);
         });
       },

test/core/xml-test.js

@@ -9,7 +9,7 @@ suite.addBatch({
   "xml": {
     topic: function() {
       var cb = this.callback;
-      d3.xml("examples/data/sample.xml", function(error, xml) {
+      d3.xml("test/data/sample.xml", function(error, xml) {
         cb(null, xml);
       });
     },
@@ -22,7 +22,7 @@ suite.addBatch({
     "": {
       topic: function() {
         var cb = this.callback;
-        d3.xml("examples/data/sample.txt", "application/xml+sample", function(error, xml) {
+        d3.xml("test/data/sample.txt", "application/xml+sample", function(error, xml) {
           cb(null, xml);
         });
       },

test/data/sample.csv

+Hello,World
+42,"""fish"""

test/data/sample.json

+[{"Hello": 42, "World": "\"fish\""}]

test/data/sample.tsv

+Hello	World
+42	"""fish"""

test/data/sample.txt

+Hello, world!

test/data/sample.xml

+<?xml version="1.0" encoding="UTF-8" ?>
+<hello>
+  <world name="Earth"/>
+</hello>

test/dsv/csv-test.js

@@ -9,7 +9,7 @@ suite.addBatch({
   "csv": {
     topic: function() {
       var cb = this.callback;
-      d3.csv("examples/data/sample.csv", function(error, csv) {
+      d3.csv("test/data/sample.csv", function(error, csv) {
         cb(null, csv);
       });
     },

test/dsv/tsv-test.js

@@ -9,7 +9,7 @@ suite.addBatch({
   "tsv": {
     topic: function() {
       var cb = this.callback;
-      d3.tsv("examples/data/sample.tsv", function(error, tsv) {
+      d3.tsv("test/data/sample.tsv", function(error, tsv) {
         cb(null, tsv);
       });
     },