Improve configmap test coverage

e2e/common/config/config_test.go

@@ -106,13 +106,33 @@ func TestRunConfigConfigmaps(t *testing.T) {
 		err = CreatePlainTextConfigmap(t, ctx, ns, "my-cm-multi", cmDataMulti)
 		g.Expect(err).To(BeNil())
 
+		// Store a configmap that mocks the '--from-file' functionality
+		// kubectl create configmap my-cm-properties-file --from-file=./files/my.properties"
+
+		err = CreateFromFileConfigmap(t, ctx, ns, "my-cm-properties-file", "./files/my.properties")
+		g.Expect(err).To(BeNil())
+
 		t.Run("Config configmap", func(t *testing.T) {
 			g.Expect(KamelRun(t, ctx, ns, "./files/config-configmap-route.yaml", "--config", "configmap:my-cm").Execute()).To(Succeed())
 			g.Eventually(IntegrationPodPhase(t, ctx, ns, "config-configmap-route"), TestTimeoutLong).Should(Equal(corev1.PodRunning))
 			g.Eventually(IntegrationConditionStatus(t, ctx, ns, "config-configmap-route", v1.IntegrationConditionReady), TestTimeoutShort).Should(Equal(corev1.ConditionTrue))
 			g.Eventually(IntegrationLogs(t, ctx, ns, "config-configmap-route"), TestTimeoutShort).Should(ContainSubstring(cmData["my-configmap-key"]))
 		})
 
+		t.Run("Config configmap from properties file", func(t *testing.T) {
+			g.Expect(KamelRun(t, ctx, ns, "./files/config-configmap-properties-route.yaml", "--config", "configmap:my-cm-properties-file").Execute()).To(Succeed())
+			g.Eventually(IntegrationPodPhase(t, ctx, ns, "config-configmap-properties-route"), TestTimeoutLong).Should(Equal(corev1.PodRunning))
+			g.Eventually(IntegrationConditionStatus(t, ctx, ns, "config-configmap-properties-route", v1.IntegrationConditionReady), TestTimeoutShort).Should(Equal(corev1.ConditionTrue))
+			g.Eventually(IntegrationLogs(t, ctx, ns, "config-configmap-properties-route"), TestTimeoutShort).Should(ContainSubstring("hello world"))
+		})
+
+		t.Run("Config configmap from properties file (interpolated)", func(t *testing.T) {
+			g.Expect(KamelRun(t, ctx, ns, "./files/config-configmap-properties-interpolation-route.yaml", "--config", "configmap:my-cm-properties-file").Execute()).To(Succeed())
+			g.Eventually(IntegrationPodPhase(t, ctx, ns, "config-configmap-properties-interpolation-route"), TestTimeoutLong).Should(Equal(corev1.PodRunning))
+			g.Eventually(IntegrationConditionStatus(t, ctx, ns, "config-configmap-properties-interpolation-route", v1.IntegrationConditionReady), TestTimeoutShort).Should(Equal(corev1.ConditionTrue))
+			g.Eventually(IntegrationLogs(t, ctx, ns, "config-configmap-properties-interpolation-route"), TestTimeoutShort).Should(ContainSubstring("hello world"))
+		})
+
 		t.Run("Resource configmap", func(t *testing.T) {
 			// We can reuse the configmap created previously
 			g.Expect(KamelRun(t, ctx, ns, "./files/resource-configmap-route.yaml", "--resource", "configmap:my-cm").Execute()).To(Succeed())

e2e/common/config/files/config-configmap-properties-interpolation-route.yaml

@@ -0,0 +1,25 @@
+# camel-k: language=yaml
+
+# ---------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+# ---------------------------------------------------------------------------
+
+- from:
+    uri: "timer:configmap"
+    steps:
+      - setBody:
+          simple: "configmap content is: {{my.key.3}}"
+      - to: "log:info"

e2e/common/config/files/my.properties

@@ -1,2 +1,3 @@
 my.key.1=hello
-my.key.2=world
+my.key.2=world
+my.key.3=${my.key.1} ${my.key.2}

e2e/support/test_support.go

@@ -33,6 +33,7 @@ import (
 	"io"
 	"os"
 	"os/exec"
+	"path/filepath"
 	"reflect"
 	"regexp"
 	"runtime/debug"
@@ -1557,6 +1558,16 @@ func CreatePlainTextConfigmap(t *testing.T, ctx context.Context, ns string, name
 	return CreatePlainTextConfigmapWithLabels(t, ctx, ns, name, data, map[string]string{})
 }
 
+func CreateFromFileConfigmap(t *testing.T, ctx context.Context, ns string, name string, pathToFile string) error {
+	content, _ := os.ReadFile(pathToFile)
+	filename := filepath.Base(pathToFile)
+
+	var data = make(map[string]string)
+	data[filename] = string(content)
+
+	return CreatePlainTextConfigmapWithLabels(t, ctx, ns, name, data, map[string]string{})
+}
+
 func CreatePlainTextConfigmapWithLabels(t *testing.T, ctx context.Context, ns string, name string, data map[string]string, labels map[string]string) error {
 	cm := corev1.ConfigMap{
 		TypeMeta: metav1.TypeMeta{