1 files changed, 80 insertions, 0 deletions
diff --git a/spec/lib/gitlab/ci/pipeline/expression/lexeme/not_matches_spec.rb b/spec/lib/gitlab/ci/pipeline/expression/lexeme/not_matches_spec.rb
new file mode 100644
index 00000000000..fa3b9651fb4
--- /dev/null
+++ b/spec/lib/gitlab/ci/pipeline/expression/lexeme/not_matches_spec.rb
@@ -0,0 +1,80 @@
+require 'fast_spec_helper'
+require_dependency 're2'
+
+describe Gitlab::Ci::Pipeline::Expression::Lexeme::NotMatches do
+  let(:left) { double('left') }
+  let(:right) { double('right') }
+
+  describe '.build' do
+    it 'creates a new instance of the token' do
+      expect(described_class.build('!~', left, right))
+        .to be_a(described_class)
+    end
+  end
+
+  describe '.type' do
+    it 'is an operator' do
+      expect(described_class.type).to eq :operator
+    end
+  end
+
+  describe '#evaluate' do
+    it 'returns true when left and right do not match' do
+      allow(left).to receive(:evaluate).and_return('my-string')
+      allow(right).to receive(:evaluate)
+        .and_return(Gitlab::UntrustedRegexp.new('something'))
+
+      operator = described_class.new(left, right)
+
+      expect(operator.evaluate).to eq true
+    end
+
+    it 'returns false when left and right match' do
+      allow(left).to receive(:evaluate).and_return('my-awesome-string')
+      allow(right).to receive(:evaluate)
+        .and_return(Gitlab::UntrustedRegexp.new('awesome.string$'))
+
+      operator = described_class.new(left, right)
+
+      expect(operator.evaluate).to eq false
+    end
+
+    it 'supports matching against a nil value' do
+      allow(left).to receive(:evaluate).and_return(nil)
+      allow(right).to receive(:evaluate)
+        .and_return(Gitlab::UntrustedRegexp.new('pattern'))
+
+      operator = described_class.new(left, right)
+
+      expect(operator.evaluate).to eq true
+    end
+
+    it 'supports multiline strings' do
+      allow(left).to receive(:evaluate).and_return <<~TEXT
+        My awesome contents
+
+        My-text-string!
+      TEXT
+
+      allow(right).to receive(:evaluate)
+        .and_return(Gitlab::UntrustedRegexp.new('text-string'))
+
+      operator = described_class.new(left, right)
+
+      expect(operator.evaluate).to eq false
+    end
+
+    it 'supports regexp flags' do
+      allow(left).to receive(:evaluate).and_return <<~TEXT
+        My AWESOME content
+      TEXT
+
+      allow(right).to receive(:evaluate)
+        .and_return(Gitlab::UntrustedRegexp.new('(?i)awesome'))
+
+      operator = described_class.new(left, right)
+
+      expect(operator.evaluate).to eq false
+    end
+  end
+end