Test Observable.take; Update Observable.skip test;

tests/observable.lua

@@ -169,4 +169,5 @@ describe('Observable', function()
   dofile('tests/reduce.lua')
   dofile('tests/reject.lua')
   dofile('tests/skip.lua')
+  dofile('tests/take.lua')
 end)

tests/skip.lua

@@ -5,6 +5,16 @@ describe('skip', function()
     expect(observable:skip(1).subscribe).to.fail()
   end)
 
+  it('produces all values if the count is zero', function()
+    local observable = Rx.Observable.fromTable({2, 3, 4}):skip(0)
+    expect(observable).to.produce(2, 3, 4)
+  end)
+
+  it('produces all values if the count is less than zero', function()
+    local observable = Rx.Observable.fromTable({2, 3, 4}):skip(-3)
+    expect(observable).to.produce(2, 3, 4)
+  end)
+
   it('skips one element if no count is specified', function()
     local observable = Rx.Observable.fromTable({2, 3, 4}, ipairs):skip()
     expect(observable).to.produce(3, 4)

tests/take.lua

@@ -0,0 +1,35 @@
+describe('take', function()
+  it('produces an error if its parent errors', function()
+    local observable = Rx.Observable.fromValue(''):map(function(x) return x() end)
+    expect(observable.subscribe).to.fail()
+    expect(observable:take(1).subscribe).to.fail()
+  end)
+
+  it('produces nothing if the count is zero', function()
+    local observable = Rx.Observable.fromValue(3):take(0)
+    expect(observable).to.produce({})
+  end)
+
+  it('produces nothing if the count is less than zero', function()
+    local observable = Rx.Observable.fromValue(3):take(-3)
+    expect(observable).to.produce({})
+  end)
+
+  it('takes one element if no count is specified', function()
+    local observable = Rx.Observable.fromTable({2, 3, 4}, ipairs):take()
+    expect(observable).to.produce(2)
+  end)
+
+  it('produces all values if it takes all of the values of the original', function()
+    local observable = Rx.Observable.fromTable({1, 2}):take(2)
+    expect(observable).to.produce(1, 2)
+  end)
+
+  it('completes and does not fail if it takes more values than were produced', function()
+    local observable = Rx.Observable.fromValue(3):take(5)
+    local onNext, onError, onComplete = observableSpy(observable)
+    expect(onNext).to.equal({{3}})
+    expect(#onError).to.equal(0)
+    expect(#onComplete).to.equal(1)
+  end)
+end)