diff --git a/data/projects/nci/config.yaml b/data/projects/nci/config.yaml
index 37dfa3c..5aca4d4 100644
--- a/data/projects/nci/config.yaml
+++ b/data/projects/nci/config.yaml
@@ -11,7 +11,5 @@ notify:
         console:
 
 steps:
-    - cmd: sleep 2
-    - cmd: >
-        cd ../../../../ &&
-        npm test
+    - cmd: npm install && npm prune
+    - cmd: npm test
diff --git a/test/repos/git b/test/repos/git
deleted file mode 160000
index 39245d9..0000000
--- a/test/repos/git
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 39245d9b93bcd2a0c6708d483b83c98a7bff1d3e
diff --git a/test/repos/git.tar.gz b/test/repos/git.tar.gz
new file mode 100644
index 0000000..1cba978
Binary files /dev/null and b/test/repos/git.tar.gz differ
diff --git a/test/repos/mercurial.tar.gz b/test/repos/mercurial.tar.gz
new file mode 100644
index 0000000..1be3d29
Binary files /dev/null and b/test/repos/mercurial.tar.gz differ
diff --git a/test/repos/mercurial/.hg/00changelog.i b/test/repos/mercurial/.hg/00changelog.i
deleted file mode 100644
index d3a8311..0000000
Binary files a/test/repos/mercurial/.hg/00changelog.i and /dev/null differ
diff --git a/test/repos/mercurial/.hg/bookmarks b/test/repos/mercurial/.hg/bookmarks
deleted file mode 100644
index e69de29..0000000
diff --git a/test/repos/mercurial/.hg/branch b/test/repos/mercurial/.hg/branch
deleted file mode 100644
index 4ad96d5..0000000
--- a/test/repos/mercurial/.hg/branch
+++ /dev/null
@@ -1 +0,0 @@
-default
diff --git a/test/repos/mercurial/.hg/cache/branchheads-served b/test/repos/mercurial/.hg/cache/branchheads-served
deleted file mode 100644
index 1e7ff6a..0000000
--- a/test/repos/mercurial/.hg/cache/branchheads-served
+++ /dev/null
@@ -1,2 +0,0 @@
-2ff4bec8b4ccc89af0bcabc0710713573078ebdb 3
-2ff4bec8b4ccc89af0bcabc0710713573078ebdb default
diff --git a/test/repos/mercurial/.hg/cache/tags b/test/repos/mercurial/.hg/cache/tags
deleted file mode 100644
index 417d383..0000000
--- a/test/repos/mercurial/.hg/cache/tags
+++ /dev/null
@@ -1,5 +0,0 @@
-3 2ff4bec8b4ccc89af0bcabc0710713573078ebdb 8354ec217ac72171221f831e40a640e499e0f246
-
-da2762e71e87935198a25b0fceab0a364ad2e6d7 zero revision
-9d7d08445f4ce095c22a98a902a391973cf07f37 second revision
-9d7d08445f4ce095c22a98a902a391973cf07f37 release 0.1.0
diff --git a/test/repos/mercurial/.hg/dirstate b/test/repos/mercurial/.hg/dirstate
deleted file mode 100644
index 6f3efa9..0000000
Binary files a/test/repos/mercurial/.hg/dirstate and /dev/null differ
diff --git a/test/repos/mercurial/.hg/last-message.txt b/test/repos/mercurial/.hg/last-message.txt
deleted file mode 100644
index ba4dae4..0000000
--- a/test/repos/mercurial/.hg/last-message.txt
+++ /dev/null
@@ -1 +0,0 @@
-temporary amend commit for 6e9e54ed42ff
\ No newline at end of file
diff --git a/test/repos/mercurial/.hg/requires b/test/repos/mercurial/.hg/requires
deleted file mode 100644
index f634f66..0000000
--- a/test/repos/mercurial/.hg/requires
+++ /dev/null
@@ -1,4 +0,0 @@
-dotencode
-fncache
-revlogv1
-store
diff --git a/test/repos/mercurial/.hg/store/00changelog.i b/test/repos/mercurial/.hg/store/00changelog.i
deleted file mode 100644
index 689f030..0000000
Binary files a/test/repos/mercurial/.hg/store/00changelog.i and /dev/null differ
diff --git a/test/repos/mercurial/.hg/store/00manifest.i b/test/repos/mercurial/.hg/store/00manifest.i
deleted file mode 100644
index 254a681..0000000
Binary files a/test/repos/mercurial/.hg/store/00manifest.i and /dev/null differ
diff --git a/test/repos/mercurial/.hg/store/data/rev0.txt.i b/test/repos/mercurial/.hg/store/data/rev0.txt.i
deleted file mode 100644
index 2431023..0000000
Binary files a/test/repos/mercurial/.hg/store/data/rev0.txt.i and /dev/null differ
diff --git a/test/repos/mercurial/.hg/store/data/rev1.txt.i b/test/repos/mercurial/.hg/store/data/rev1.txt.i
deleted file mode 100644
index a6bdf46..0000000
Binary files a/test/repos/mercurial/.hg/store/data/rev1.txt.i and /dev/null differ
diff --git a/test/repos/mercurial/.hg/store/data/rev2.txt.i b/test/repos/mercurial/.hg/store/data/rev2.txt.i
deleted file mode 100644
index 8963e92..0000000
Binary files a/test/repos/mercurial/.hg/store/data/rev2.txt.i and /dev/null differ
diff --git a/test/repos/mercurial/.hg/store/data/~2ehgtags.i b/test/repos/mercurial/.hg/store/data/~2ehgtags.i
deleted file mode 100644
index 2c5d2d9..0000000
Binary files a/test/repos/mercurial/.hg/store/data/~2ehgtags.i and /dev/null differ
diff --git a/test/repos/mercurial/.hg/store/fncache b/test/repos/mercurial/.hg/store/fncache
deleted file mode 100644
index cb5f57c..0000000
--- a/test/repos/mercurial/.hg/store/fncache
+++ /dev/null
@@ -1,4 +0,0 @@
-data/.hgtags.i
-data/rev0.txt.i
-data/rev1.txt.i
-data/rev2.txt.i
diff --git a/test/repos/mercurial/.hg/store/phaseroots b/test/repos/mercurial/.hg/store/phaseroots
deleted file mode 100644
index 025c6a7..0000000
--- a/test/repos/mercurial/.hg/store/phaseroots
+++ /dev/null
@@ -1 +0,0 @@
-1 da2762e71e87935198a25b0fceab0a364ad2e6d7
diff --git a/test/repos/mercurial/.hgtags b/test/repos/mercurial/.hgtags
deleted file mode 100644
index cdfc9be..0000000
--- a/test/repos/mercurial/.hgtags
+++ /dev/null
@@ -1,3 +0,0 @@
-da2762e71e87935198a25b0fceab0a364ad2e6d7 zero revision
-9d7d08445f4ce095c22a98a902a391973cf07f37 second revision
-9d7d08445f4ce095c22a98a902a391973cf07f37 release 0.1.0
diff --git a/test/repos/mercurial/rev0.txt b/test/repos/mercurial/rev0.txt
deleted file mode 100644
index e69de29..0000000
diff --git a/test/repos/mercurial/rev1.txt b/test/repos/mercurial/rev1.txt
deleted file mode 100644
index e69de29..0000000
diff --git a/test/repos/mercurial/rev2.txt b/test/repos/mercurial/rev2.txt
deleted file mode 100644
index e69de29..0000000
diff --git a/test/repos/rev0.txt b/test/repos/rev0.txt
deleted file mode 100644
index e69de29..0000000
diff --git a/test/repos/rev1.txt b/test/repos/rev1.txt
deleted file mode 100644
index e69de29..0000000
diff --git a/test/scm.js b/test/scm.js
index f18dc03..fac32e8 100644
--- a/test/scm.js
+++ b/test/scm.js
@@ -19,12 +19,31 @@ var getTestData = function(type) {
 	describe(type, function() {
 		var data = getTestData(type),
 			repositoryName = 'test-repository',
-			repositoryPath = path.join(path.join(__dirname, 'repos'), repositoryName);
+			repositoryPath = path.join(
+				path.join(__dirname, 'repos'), repositoryName
+			),
+			originalRepositoryPath = path.join(__dirname, 'repos', type);
 
 		function rmdir(dir, callback) {
 			new SpawnCommand().run({cmd: 'rm', args: ['-R', dir]}, callback);
 		}
 
+		it('remove original repository dir if it exists', function(done) {
+			if (fs.exists(originalRepositoryPath, function(isExists) {
+				if (isExists) {
+					rmdir(originalRepositoryPath, done);
+				} else {
+					done();
+				}
+			}));
+		});
+
+		it('unpack original repository', function(done) {
+			new SpawnCommand().run({cmd: 'tar', args: [
+				'-xvf', type + '.tar.gz'
+			], options: {cwd: path.join(__dirname, 'repos')}}, done);
+		});
+
 		it('remove test repository dir if it exists', function(done) {
 			if (fs.exists(repositoryPath, function(isExists) {
 				if (isExists) {
@@ -40,7 +59,7 @@ var getTestData = function(type) {
 		it('create scm instance attached to new repository without errors', function() {
 			scm = createScm({
 				type: type,
-				repository: path.join(__dirname, 'repos', type)
+				repository: originalRepositoryPath
 			});
 		});