Initial commit

test/hello/hello.sh

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+#!/bin/bash
+
+# This test file will be executed against one of the scenarios devcontainer.json test that
+# includes the 'color' feature with "greeting": "hello" option.
+
+set -e
+
+# Optional: Import test library bundled with the devcontainer CLI
+source dev-container-features-test-lib
+
+# Feature-specific tests
+# The 'check' command comes from the dev-container-features-test-lib.
+check "execute command" bash -c "hello | grep 'hello, $(whoami)!'"
+
+# Report results
+# If any of the checks above exited with a non-zero exit code, the test will fail.
+reportResults

test/hello/scenarios.json

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+{
+    "hello": {
+        "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
+        "features": {
+            "hello": {
+                "greeting": "hello"
+            }
+        }
+    }
+}

test/hello/test.sh

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+#!/bin/bash
+
+# This test file will be executed against an auto-generated devcontainer.json that
+# includes the 'hello' Feature with no options.
+#
+# For more information, see: https://github.com/devcontainers/cli/blob/main/docs/features/test.md
+#
+# Eg:
+# {
+#    "image": "<..some-base-image...>",
+#    "features": {
+#      "hello": {}
+#    },
+#    "remoteUser": "root"
+# }
+#
+# Thus, the value of all options will fall back to the default value in 
+# the Feature's 'devcontainer-feature.json'.
+# For the 'hello' feature, that means the default favorite greeting is 'hey'.
+#
+# These scripts are run as 'root' by default. Although that can be changed
+# with the '--remote-user' flag.
+# 
+# This test can be run with the following command:
+#
+#    devcontainer features test \ 
+#                   --features hello   \
+#                   --remote-user root \
+#                   --skip-scenarios   \
+#                   --base-image mcr.microsoft.com/devcontainers/base:ubuntu \
+#                   /path/to/this/repo
+
+set -e
+
+# Optional: Import test library bundled with the devcontainer CLI
+# See https://github.com/devcontainers/cli/blob/HEAD/docs/features/test.md#dev-container-features-test-lib
+# Provides the 'check' and 'reportResults' commands.
+source dev-container-features-test-lib
+
+# Feature-specific tests
+# The 'check' command comes from the dev-container-features-test-lib. Syntax is...
+# check <LABEL> <cmd> [args...]
+check "execute command" bash -c "hello | grep 'hey, $(whoami)!'"
+
+# Report results
+# If any of the checks above exited with a non-zero exit code, the test will fail.
+reportResults