Tests for aptly snapshot create from repo

system/t05_snapshot/CreateSnapshot6Test_gold

@@ -0,0 +1,3 @@
+
+Snapshot snap6 successfully created.
+You can run 'aptly publish snapshot snap6' to publish snapshot as Debian repository.

system/t05_snapshot/CreateSnapshot6Test_snapshot_show

@@ -0,0 +1,7 @@
+Name: snap6
+Description: Snapshot from local repo [local-repo]
+Number of packages: 3
+Packages:
+  libboost-program-options-dev-1.49.0.1_i386
+  pyspi-0.6.1-1.3_source
+  pyspi-0.6.1-1.4_source

system/t05_snapshot/CreateSnapshot7Test_gold

@@ -0,0 +1 @@
+ERROR: unable to create snapshot: local repo with name no-such-repo not found

system/t05_snapshot/CreateSnapshot8Test_gold

@@ -0,0 +1 @@
+ERROR: unable to add snapshot: snapshot with name snap8 already exists

system/t05_snapshot/create.py

@@ -57,3 +57,42 @@ class CreateSnapshot5Test(BaseTest):
     fixtureCmds = ["aptly snapshot create snap5 empty"]
     runCmd = "aptly snapshot create snap5 empty"
     expectedCode = 1
+
+
+class CreateSnapshot6Test(BaseTest):
+    """
+    create snapshot: from repo
+    """
+    fixtureCmds = [
+        "aptly repo create local-repo",
+        "aptly repo add local-repo ${files}"
+    ]
+    runCmd = "aptly snapshot create snap6 from repo local-repo"
+
+    def check(self):
+        def remove_created_at(s):
+            return re.sub(r"Created At: [0-9:A-Za-z -]+\n", "", s)
+
+        self.check_output()
+        self.check_cmd_output("aptly snapshot show -with-packages snap6", "snapshot_show", match_prepare=remove_created_at)
+
+
+class CreateSnapshot7Test(BaseTest):
+    """
+    create snapshot: no repo
+    """
+    runCmd = "aptly snapshot create snap1 from repo no-such-repo"
+    expectedCode = 1
+
+
+class CreateSnapshot8Test(BaseTest):
+    """
+    create snapshot: duplicate name from repo
+    """
+    fixtureCmds = [
+        "aptly repo create local-repo",
+        "aptly repo add local-repo ${files}",
+        "aptly snapshot create snap8 from repo local-repo"
+    ]
+    runCmd = "aptly snapshot create snap8 from repo local-repo"
+    expectedCode = 1