Update bfs test case

Author: mgechev

test/graphs/searching/bfs.spec.js

@@ -9,50 +9,12 @@ var sampleGraph = [[1, 1, 1, 0, 0, 0],
                    [0, 0, 1, 1, 1, 1],
                    [0, 0, 0, 0, 1, 1]];
 
-var bfs = require('../../../src/graphs/searching/bfs').breadthFirstSearch;
+var bfs = require('../../../src/graphs/searching/bfs').bfs;
 
 describe('BFS', function () {
 
-  it('should work with incorrect input', function () {
-    expect(function () {
-      bfs(null, [1, 1], [1, 1]);
-    }).toThrow();
-    expect(function () {
-      bfs(sampleGraph, [-1, -1], [0, 0]);
-    }).toThrow();
-    expect(function () {
-      bfs(sampleGraph, [0, -1], [-1, 0]);
-    }).toThrow();
-    expect(function () {
-      bfs(sampleGraph, [0, 0], [-1, 0]);
-    }).toThrow();
-    expect(function () {
-      bfs(sampleGraph, [0, 1000], [-1, 0]);
-    }).toThrow();
-    expect(function () {
-      bfs(sampleGraph, [100000, 1000], [-1, 0]);
-    }).toThrow();
-    expect(function () {
-      bfs(sampleGraph, [0, 0], [100, 100]);
-    }).toThrow();
-    expect(function () {
-      bfs(sampleGraph, [0, 0], [5, 5]);
-    }).not.toThrow();
-  });
-
-  it('should work with 1x1 matrix', function () {
-    var graph = [[1]];
-    expect(bfs(graph, [0, 0], [0, 0])).toBeTruthy();
-    graph = [[0]];
-    expect(bfs(graph, [0, 0], [0, 0])).toBeFalsy();
-  });
-
-  it('should work in the general case', function () {
-    expect(bfs(sampleGraph, [0, 0], [1, 1])).toBeTruthy();
-    expect(bfs(sampleGraph, [0, 0], [6, 5])).toBeTruthy();
-    expect(bfs(sampleGraph, [0, 0], [0, 5])).toBeFalsy();
-    expect(bfs(sampleGraph, [1, 1], [6, 5])).toBeTruthy();
-    expect(bfs(sampleGraph, [1, 1], [0, 5])).toBeFalsy();
+  it('should work with empty graph', function () {
+    expect(bfs([], 0, 0)).toEqual([0]);
   });
 
 });