resolver: unit test filtering from cached capture

docs/examples/all-ethernet-up/captured.yaml

@@ -0,0 +1,46 @@
+ethernets:
+  metaInfo:
+    time: "2021-12-15T13:45:40Z"
+    version: "0"
+  state:
+    interfaces:
+    - accept-all-mac-addresses: false
+      lldp:
+        enabled: false
+      mac-address: 52:55:00:D1:55:02
+      name: eth0
+      state: up
+      type: ethernet
+    - accept-all-mac-addresses: false
+      lldp:
+        enabled: false
+      mac-address: 52:55:00:D1:56:02
+      name: eth1
+      state: down
+      type: ethernet
+ethernets-up:
+  metaInfo:
+    time: "2021-12-15T13:45:40Z"
+    version: "0"
+  state:
+    interfaces:
+    - accept-all-mac-addresses: false
+      lldp:
+        enabled: false
+      mac-address: 52:55:00:D1:55:02
+      name: eth0
+      state: up
+      type: ethernet
+ethernets-lldp:
+  metaInfo:
+    time: "2021-12-15T13:45:40Z"
+    version: "0"
+  state:
+    interfaces:
+    - accept-all-mac-addresses: false
+      lldp:
+        enabled: false
+      mac-address: 52:55:00:D1:55:02
+      name: eth0
+      state: up
+      type: ethernet

docs/examples/all-ethernet-up/current.yaml

@@ -0,0 +1,15 @@
+interfaces:
+- accept-all-mac-addresses: false
+  lldp:
+    enabled: false
+  mac-address: 52:55:00:D1:55:02
+  name: eth0
+  state: up
+  type: ethernet
+- accept-all-mac-addresses: false
+  lldp:
+    enabled: false
+  mac-address: 52:55:00:D1:56:02
+  name: eth1
+  state: down
+  type: ethernet

docs/examples/all-ethernet-up/generated.yaml

@@ -0,0 +1,8 @@
+interfaces:
+- accept-all-mac-addresses: false
+  lldp:
+    enabled: true
+  mac-address: 52:55:00:D1:55:02
+  name: eth0
+  state: up
+  type: ethernet

docs/examples/all-ethernet-up/policy.md

@@ -0,0 +1,9 @@
+{% raw %}
+capture:
+  ethernets: interfaces.type=="ethernet"
+  ethernets-up: capture.ethernets.interfaces.state=="up"
+  ethernets-lldp: capture.ethernets-up | interfaces.lldp.enabled:=true
+
+desiredState: 
+  interfaces: "{{ capture.ethernets-lldp.interfaces }}"
+{% endraw %}

nmpolicy/internal/resolver/resolver_test.go

@@ -145,6 +145,7 @@ func TestFilter(t *testing.T) {
 		testReplaceCapturedState(t)
 		testReplaceWithCaptureRef(t)
 		testReplaceOptionalField(t)
+		testFilterStateCaptureRef(t)
 	})
 }
 
@@ -376,6 +377,101 @@ base-iface-routes:
 	})
 }
 
+func testFilterStateCaptureRef(t *testing.T) {
+	t.Run("Replace boolean in filtered list with capture reference", func(t *testing.T) {
+		testToRun := test{
+			capturedStatesCache: `
+ethernets:
+  state:
+    interfaces:
+    - name: eth1
+      description: "1st ethernet interface"
+      type: ethernet
+      state: up
+      ipv4:
+        address:
+        - ip: 10.244.0.1
+          prefix-length: 24
+        - ip: 169.254.1.0
+          prefix-length: 16
+        dhcp: false
+        enabled: true
+    - name: eth2
+      type: ethernet
+      state: down
+      ipv4:
+        address:
+        - ip: 1.2.3.4
+          prefix-length: 24
+        dhcp: false
+        enabled: false
+`,
+			captureASTPool: `
+ethernets-up:
+  pos: 1
+  eqfilter:
+  - pos: 2
+    path:
+    - pos: 3
+      identity: capture
+    - pos: 4
+      identity: ethernets
+  - pos: 5
+    path:
+    - pos: 6
+      identity: interfaces
+    - pos: 7
+      identity: state
+  - pos: 8
+    string: up
+`,
+
+			expectedCapturedStates: `
+ethernets:
+  state:
+    interfaces:
+    - name: eth1
+      description: "1st ethernet interface"
+      type: ethernet
+      state: up
+      ipv4:
+        address:
+        - ip: 10.244.0.1
+          prefix-length: 24
+        - ip: 169.254.1.0
+          prefix-length: 16
+        dhcp: false
+        enabled: true
+    - name: eth2
+      type: ethernet
+      state: down
+      ipv4:
+        address:
+        - ip: 1.2.3.4
+          prefix-length: 24
+        dhcp: false
+        enabled: false
+ethernets-up:
+  state:
+    interfaces:
+    - name: eth1
+      description: "1st ethernet interface"
+      type: ethernet
+      state: up
+      ipv4:
+        address:
+        - ip: 10.244.0.1
+          prefix-length: 24
+        - ip: 169.254.1.0
+          prefix-length: 16
+        dhcp: false
+        enabled: true
+`,
+		}
+		runTest(t, &testToRun)
+	})
+}
+
 func testFilterCaptureRefWithoutCapturedState(t *testing.T) {
 	t.Run("Filter list with capture reference", func(t *testing.T) {
 		testToRun := test{