ipc: add basic spec test

Signed-off-by: Davide Cavalca <dcavalca@fb.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/spec/unit/plugins/linux/ipc_spec.rb b/spec/unit/plugins/linux/ipc_spec.rb
new file mode 100644
index 00000000..4b5344ba
--- /dev/null
+++ b/spec/unit/plugins/linux/ipc_spec.rb
@@ -0,0 +1,85 @@
+#
+# Author:: Davide Cavalca <dcavalca@fb.com>
+# Copyright:: Copyright (c) 2020 Facebook
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+require "spec_helper"
+
+describe Ohai::System, "Linux ipc plugin" do
+  let(:plugin) { get_plugin("linux/ipc") }
+
+  before do
+    allow(plugin).to receive(:collect_os).and_return(:linux)
+  end
+
+  it "populates ipc if ipcs is available" do
+    ipcs_out = <<-IPCS_OUT
+
+------ Shared Memory Segments --------
+key        shmid      owner      perms      bytes      nattch     status      
+0x00000000 131072     dcavalca   600        524288     2          dest         
+0x00000000 38993921   dcavalca   600        393216     2          dest         
+0x00000000 39092226   dcavalca   600        524288     2          dest         
+0x00000000 9437188    dcavalca   600        524288     2          dest         
+
+    IPCS_OUT
+
+    allow(plugin).to receive(:which).with("ipcs").and_return("/bin/ipcs")
+    allow(plugin).to receive(:shell_out).with("/bin/ipcs -m").and_return(mock_shell_out(0, ipcs_out, ""))
+    plugin.run
+    expect(plugin[:ipc].to_hash).to eq({
+      "shm" => {
+        131072 => {
+          "bytes" => 524288,
+          "key" => "0x00000000",
+          "nattch" => 2,
+          "owner" => "dcavalca",
+          "perms" => "600",
+          "status" => "dest",
+        },
+        38993921 => {
+          "bytes" => 393216,
+          "key" => "0x00000000",
+          "nattch" => 2,
+          "owner" => "dcavalca",
+          "perms" => "600",
+          "status" => "dest",
+        },
+        39092226 => {
+          "bytes" => 524288,
+          "key" => "0x00000000",
+          "nattch" => 2,
+          "owner" => "dcavalca",
+          "perms" => "600",
+          "status" => "dest",
+        },
+        9437188 => {
+          "bytes" => 524288,
+          "key" => "0x00000000",
+          "nattch" => 2,
+          "owner" => "dcavalca",
+          "perms" => "600",
+          "status" => "dest",
+        },
+      },
+    })
+  end
+
+  it "does not populate ipc if ipcs is not available" do
+    allow(plugin).to receive(:which).with("ipcs").and_return(false)
+    expect(plugin[:ipc]).to eq(nil)
+  end
+end