diff --git a/ReactiveLists.xcodeproj/project.pbxproj b/ReactiveLists.xcodeproj/project.pbxproj
index 1815aab..43fbd1f 100644
--- a/ReactiveLists.xcodeproj/project.pbxproj
+++ b/ReactiveLists.xcodeproj/project.pbxproj
@@ -8,8 +8,7 @@
 
 /* Begin PBXBuildFile section */
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+		2537A64A201671F20044469D /* XCTest+Parameterized.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2537A649201671F20044469D /* XCTest+Parameterized.swift */; };
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@@ -36,7 +35,6 @@
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@@ -66,13 +64,13 @@
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 /* Begin PBXFileReference section */
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@@ -141,8 +139,6 @@
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@@ -222,6 +218,7 @@
 		258E319C1F0D8CBC00D6F324 /* Tests */ = {
 			isa = PBXGroup;
 			children = (
+				2537A649201671F20044469D /* XCTest+Parameterized.swift */,
 				258E31DB1F0D90BC00D6F324 /* FluxCollectionViewDataSourceTests.swift */,
 				258E31DC1F0D90BC00D6F324 /* FluxCollectionViewModelTests.swift */,
 				258E31DE1F0D90BC00D6F324 /* FluxTableViewDataSourceTests.swift */,
@@ -566,6 +563,7 @@
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 				2541B73D1F29A13B002C3090 /* Diffing.swift in Sources */,
 				258E31B31F0D8D9C00D6F324 /* FluxTableViewDataSource.swift in Sources */,
+				2537A64A201671F20044469D /* XCTest+Parameterized.swift in Sources */,
 				258E31DA1F0D8FB800D6F324 /* Extensions.swift in Sources */,
 				258E31B11F0D8D9C00D6F324 /* FluxCollectionViewDataSource.swift in Sources */,
 				258E31B51F0D8D9C00D6F324 /* ViewLocation.swift in Sources */,
diff --git a/Tests/FluxCollectionViewDataSourceTests.swift b/Tests/FluxCollectionViewDataSourceTests.swift
index c143ce7..65f49f9 100644
--- a/Tests/FluxCollectionViewDataSourceTests.swift
+++ b/Tests/FluxCollectionViewDataSourceTests.swift
@@ -7,7 +7,6 @@
 //
 
 import Nimble
-import PGSharedTestUtils
 @testable import ReactiveLists
 import ReactiveSwift
 import UIKit
diff --git a/Tests/FluxCollectionViewModelTests.swift b/Tests/FluxCollectionViewModelTests.swift
index 422ca6e..3dcbd6b 100644
--- a/Tests/FluxCollectionViewModelTests.swift
+++ b/Tests/FluxCollectionViewModelTests.swift
@@ -6,7 +6,6 @@
 //  Copyright © 2016 PlanGrid. All rights reserved.
 //
 
-import PGSharedTestUtils
 @testable import ReactiveLists
 import ReactiveSwift
 import XCTest
diff --git a/Tests/FluxTableViewDataSourceTests.swift b/Tests/FluxTableViewDataSourceTests.swift
index 7407a4e..9525c75 100644
--- a/Tests/FluxTableViewDataSourceTests.swift
+++ b/Tests/FluxTableViewDataSourceTests.swift
@@ -7,7 +7,6 @@
 //
 
 import Nimble
-import PGSharedTestUtils
 @testable import ReactiveLists
 import ReactiveSwift
 import XCTest
diff --git a/Tests/XCTest+Parameterized.swift b/Tests/XCTest+Parameterized.swift
new file mode 100644
index 0000000..25d64ec
--- /dev/null
+++ b/Tests/XCTest+Parameterized.swift
@@ -0,0 +1,25 @@
+/**
+ Allows to perform a parameterized tests, in which each test case can  have different inputs and
+ expecations but in which the test preparation & execution code are shared.
+ */
+public struct ParameterizedTest<TestParameter> {
+
+    public typealias Expectation = (TestParameter) -> Void
+    public typealias TestCase = (TestParameter, expectation: Expectation)
+    public typealias TestClosure = (TestParameter, Expectation) -> Void
+
+    public static func test(testCases: [TestCase], testClosure: TestClosure) {
+        testCases.forEach { testClosure($0.0, $0.expectation) }
+    }
+}
+
+/// Run the same expectation code for any number of single parameter cases
+///
+/// Note: For type inferencing to work on nil cases, you may have to do two things:
+///
+/// (1) order the nil case first in the list of cases
+///
+/// (2) explicitly type the nil, e.g. `Optional<String>()`
+public func parameterize<A>(cases: A..., expectation: ((A) -> Void)) {
+    cases.forEach { expectation($0) }
+}