diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/final/Gopkg.lock b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/final/Gopkg.lock
new file mode 100644
index 0000000000..c7f497e7a1
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/final/Gopkg.lock
@@ -0,0 +1,15 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "github.com/sdboyer/deptest"
+  packages = ["."]
+  revision = "ff2948a2ac8f538c4ecd55962e919d1e13e74baf"
+  version = "v1.0.0"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "14b07b05e0f01051b03887ab2bf80b516bc5510ea92f75f76c894b1745d8850c"
+  solver-name = "gps-cdcl"
+  solver-version = 1
diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/final/Gopkg.toml b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/final/Gopkg.toml
new file mode 100644
index 0000000000..e242e02114
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/final/Gopkg.toml
@@ -0,0 +1,4 @@
+
+[[constraint]]
+  name = "github.com/sdboyer/deptest"
+  version = "1.0.0"
diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/initial/Gopkg.lock b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/initial/Gopkg.lock
new file mode 100644
index 0000000000..c7f497e7a1
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/initial/Gopkg.lock
@@ -0,0 +1,15 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "github.com/sdboyer/deptest"
+  packages = ["."]
+  revision = "ff2948a2ac8f538c4ecd55962e919d1e13e74baf"
+  version = "v1.0.0"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "14b07b05e0f01051b03887ab2bf80b516bc5510ea92f75f76c894b1745d8850c"
+  solver-name = "gps-cdcl"
+  solver-version = 1
diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/initial/Gopkg.toml b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/initial/Gopkg.toml
new file mode 100644
index 0000000000..e242e02114
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/initial/Gopkg.toml
@@ -0,0 +1,4 @@
+
+[[constraint]]
+  name = "github.com/sdboyer/deptest"
+  version = "1.0.0"
diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/initial/main.go b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/initial/main.go
new file mode 100644
index 0000000000..1fe0d19d6a
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/initial/main.go
@@ -0,0 +1,12 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	_ "github.com/sdboyer/deptest"
+)
+
+func main() {
+}
diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/testcase.json b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/testcase.json
new file mode 100644
index 0000000000..f3bdbe7e90
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hasheq-novendor-dry/testcase.json
@@ -0,0 +1,5 @@
+{
+  "commands": [
+    ["ensure", "-no-vendor", "-dry-run"]
+  ]
+}
diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/final/Gopkg.lock b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/final/Gopkg.lock
new file mode 100644
index 0000000000..11cb12c378
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/final/Gopkg.lock
@@ -0,0 +1,16 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "github.com/sdboyer/deptest"
+  packages = ["."]
+  revision = "ff2948a2ac8f538c4ecd55962e919d1e13e74baf"
+  version = "v1.0.0"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  # manually modified hash digest, it will not match any known inputs
+  inputs-digest = "94b07b05e0f01051b03887ab2bf80b516bc5510ea92f75f76c894b1745d8850c"
+  solver-name = "gps-cdcl"
+  solver-version = 1
diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/final/Gopkg.toml b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/final/Gopkg.toml
new file mode 100644
index 0000000000..e242e02114
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/final/Gopkg.toml
@@ -0,0 +1,4 @@
+
+[[constraint]]
+  name = "github.com/sdboyer/deptest"
+  version = "1.0.0"
diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/initial/Gopkg.lock b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/initial/Gopkg.lock
new file mode 100644
index 0000000000..11cb12c378
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/initial/Gopkg.lock
@@ -0,0 +1,16 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "github.com/sdboyer/deptest"
+  packages = ["."]
+  revision = "ff2948a2ac8f538c4ecd55962e919d1e13e74baf"
+  version = "v1.0.0"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  # manually modified hash digest, it will not match any known inputs
+  inputs-digest = "94b07b05e0f01051b03887ab2bf80b516bc5510ea92f75f76c894b1745d8850c"
+  solver-name = "gps-cdcl"
+  solver-version = 1
diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/initial/Gopkg.toml b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/initial/Gopkg.toml
new file mode 100644
index 0000000000..e242e02114
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/initial/Gopkg.toml
@@ -0,0 +1,4 @@
+
+[[constraint]]
+  name = "github.com/sdboyer/deptest"
+  version = "1.0.0"
diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/initial/main.go b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/initial/main.go
new file mode 100644
index 0000000000..1fe0d19d6a
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/initial/main.go
@@ -0,0 +1,12 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	_ "github.com/sdboyer/deptest"
+)
+
+func main() {
+}
diff --git a/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/testcase.json b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/testcase.json
new file mode 100644
index 0000000000..2e54069437
--- /dev/null
+++ b/cmd/dep/testdata/harness_tests/ensure/default/hashneq-novendor-dry/testcase.json
@@ -0,0 +1,6 @@
+{
+  "commands": [
+    ["ensure", "-no-vendor", "-dry-run"]
+  ],
+  "error-expected": "Gopkg.lock was not up to date"
+}