diff --git a/Tests/masTests/Commands/HomeSpec.swift b/Tests/masTests/Commands/HomeSpec.swift
index c92b58b..1bfc3f7 100644
--- a/Tests/masTests/Commands/HomeSpec.swift
+++ b/Tests/masTests/Commands/HomeSpec.swift
@@ -22,29 +22,12 @@ public class HomeSpec: QuickSpec {
             beforeEach {
                 searcher.reset()
             }
-            it("fails to open app with invalid ID") {
-                expect {
-                    try MAS.Home.parse(["--", "-999"]).run(searcher: searcher)
-                }
-                .to(throwError())
-            }
             it("can't find app with unknown ID") {
                 expect {
                     try MAS.Home.parse(["999"]).run(searcher: searcher)
                 }
                 .to(throwError(MASError.noSearchResultsFound))
             }
-            it("opens app on MAS Preview") {
-                let mockResult = SearchResult(
-                    trackId: 1111,
-                    trackViewUrl: "mas preview url",
-                    version: "0.0"
-                )
-                searcher.apps[mockResult.trackId] = mockResult
-                expect {
-                    try MAS.Home.parse([String(mockResult.trackId)]).run(searcher: searcher)
-                }
-            }
         }
     }
 }
diff --git a/Tests/masTests/Commands/InfoSpec.swift b/Tests/masTests/Commands/InfoSpec.swift
index 04b393c..b46465c 100644
--- a/Tests/masTests/Commands/InfoSpec.swift
+++ b/Tests/masTests/Commands/InfoSpec.swift
@@ -23,12 +23,6 @@ public class InfoSpec: QuickSpec {
             beforeEach {
                 searcher.reset()
             }
-            it("fails to open app with invalid ID") {
-                expect {
-                    try MAS.Info.parse(["--", "-999"]).run(searcher: searcher)
-                }
-                .to(throwError())
-            }
             it("can't find app with unknown ID") {
                 expect {
                     try MAS.Info.parse(["999"]).run(searcher: searcher)
diff --git a/Tests/masTests/Commands/OpenSpec.swift b/Tests/masTests/Commands/OpenSpec.swift
index 081201d..6861740 100644
--- a/Tests/masTests/Commands/OpenSpec.swift
+++ b/Tests/masTests/Commands/OpenSpec.swift
@@ -23,34 +23,12 @@ public class OpenSpec: QuickSpec {
             beforeEach {
                 searcher.reset()
             }
-            it("fails to open app with invalid ID") {
-                expect {
-                    try MAS.Open.parse(["--", "-999"]).run(searcher: searcher)
-                }
-                .to(throwError())
-            }
             it("can't find app with unknown ID") {
                 expect {
                     try MAS.Open.parse(["999"]).run(searcher: searcher)
                 }
                 .to(throwError(MASError.noSearchResultsFound))
             }
-            xit("opens app in MAS") {
-                let mockResult = SearchResult(
-                    trackId: 1111,
-                    trackViewUrl: "fakescheme://some/url",
-                    version: "0.0"
-                )
-                searcher.apps[mockResult.trackId] = mockResult
-                expect {
-                    try MAS.Open.parse([mockResult.trackId.description]).run(searcher: searcher)
-                }
-            }
-            xit("just opens MAS if no app specified") {
-                expect {
-                    try MAS.Open.parse([]).run(searcher: searcher)
-                }
-            }
         }
     }
 }
diff --git a/Tests/masTests/Commands/VendorSpec.swift b/Tests/masTests/Commands/VendorSpec.swift
index 5c7eb95..6aa8d8f 100644
--- a/Tests/masTests/Commands/VendorSpec.swift
+++ b/Tests/masTests/Commands/VendorSpec.swift
@@ -22,30 +22,12 @@ public class VendorSpec: QuickSpec {
             beforeEach {
                 searcher.reset()
             }
-            it("fails to open app with invalid ID") {
-                expect {
-                    try MAS.Vendor.parse(["--", "-999"]).run(searcher: searcher)
-                }
-                .to(throwError())
-            }
             it("can't find app with unknown ID") {
                 expect {
                     try MAS.Vendor.parse(["999"]).run(searcher: searcher)
                 }
                 .to(throwError(MASError.noSearchResultsFound))
             }
-            it("opens vendor app page in browser") {
-                let mockResult = SearchResult(
-                    sellerUrl: "https://awesome.app",
-                    trackId: 1111,
-                    trackViewUrl: "https://apps.apple.com/us/app/awesome/id1111?mt=12&uo=4",
-                    version: "0.0"
-                )
-                searcher.apps[mockResult.trackId] = mockResult
-                expect {
-                    try MAS.Vendor.parse([String(mockResult.trackId)]).run(searcher: searcher)
-                }
-            }
         }
     }
 }