diff --git a/Specs/Scene/TileMapServiceImageryProviderSpec.js b/Specs/Scene/TileMapServiceImageryProviderSpec.js
index 2eb396bb6f6b..e700c8a9851f 100644
--- a/Specs/Scene/TileMapServiceImageryProviderSpec.js
+++ b/Specs/Scene/TileMapServiceImageryProviderSpec.js
@@ -168,7 +168,11 @@ defineSuite([
         var provider = new TileMapServiceImageryProvider({
             url : 'made/up/tms/server'
         });
-        expect(provider.credit).toBeUndefined();
+        return pollToPromise(function() {
+          return provider.ready;
+        }).then(function() {
+          expect(provider.credit).toBeUndefined();
+        });
     });
 
     it('turns the supplied credit into a logo', function() {
@@ -176,7 +180,11 @@ defineSuite([
             url : 'made/up/gms/server',
             credit : 'Thanks to our awesome made up source of this imagery!'
         });
-        expect(providerWithCredit.credit).toBeDefined();
+        return pollToPromise(function() {
+          return providerWithCredit.ready;
+        }).then(function() {
+          expect(providerWithCredit.credit).toBeDefined();
+        });
     });
 
     it('routes resource request through a proxy if one is specified', function() {
@@ -481,7 +489,7 @@ defineSuite([
 
             expect(provider.rectangle.west).toEqual(expectedSW.longitude);
             expect(provider.rectangle.south).toEqual(expectedSW.latitude);
-            expect(provider.rectangle.east).toEqual(expectedNE.longitude);
+            expect(provider.rectangle.east).toBeCloseTo(expectedNE.longitude, CesiumMath.EPSILON14);
             expect(provider.rectangle.north).toEqual(expectedNE.latitude);
         });
     });
@@ -520,9 +528,9 @@ defineSuite([
             var expectedSW = Cartographic.fromDegrees(-123.0, -10.0);
             var expectedNE = Cartographic.fromDegrees(-110.0, 11.0);
 
-            expect(provider.rectangle.west).toEqual(expectedSW.longitude);
+            expect(provider.rectangle.west).toBeCloseTo(expectedSW.longitude, CesiumMath.EPSILON14);
             expect(provider.rectangle.south).toEqual(expectedSW.latitude);
-            expect(provider.rectangle.east).toEqual(expectedNE.longitude);
+            expect(provider.rectangle.east).toBeCloseTo(expectedNE.longitude, CesiumMath.EPSILON14);
             expect(provider.rectangle.north).toEqual(expectedNE.latitude);
         });
     });
@@ -561,9 +569,9 @@ defineSuite([
             var expectedSW = Cartographic.fromDegrees(-123.0, -10.0);
             var expectedNE = Cartographic.fromDegrees(-110.0, 11.0);
 
-            expect(provider.rectangle.west).toEqual(expectedSW.longitude);
+            expect(provider.rectangle.west).toBeCloseTo(expectedSW.longitude, CesiumMath.EPSILON14);
             expect(provider.rectangle.south).toEqual(expectedSW.latitude);
-            expect(provider.rectangle.east).toEqual(expectedNE.longitude);
+            expect(provider.rectangle.east).toBeCloseTo(expectedNE.longitude, CesiumMath.EPSILON14);
             expect(provider.rectangle.north).toEqual(expectedNE.latitude);
         });
     });
@@ -602,9 +610,9 @@ defineSuite([
             var expectedSW = Cartographic.fromDegrees(-123.0, -10.0);
             var expectedNE = Cartographic.fromDegrees(-110.0, 11.0);
 
-            expect(provider.rectangle.west).toEqual(expectedSW.longitude);
+            expect(provider.rectangle.west).toBeCloseTo(expectedSW.longitude, CesiumMath.EPSILON14);
             expect(provider.rectangle.south).toEqual(expectedSW.latitude);
-            expect(provider.rectangle.east).toEqual(expectedNE.longitude);
+            expect(provider.rectangle.east).toBeCloseTo(expectedNE.longitude, CesiumMath.EPSILON14);
             expect(provider.rectangle.north).toEqual(expectedNE.latitude);
         });
     });