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Update 17_186_mcp_cli_testing.html #77

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52c5c0a
Update 17_186_mcp_cli_testing.html
b4rdos Sep 29, 2025
e40fd17
Merge branch 'main' into patch-1
b4rdos Oct 9, 2025
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49 changes: 39 additions & 10 deletions project_11_how_to_build_your_first_mcp_server/17_186_mcp_cli_testing.html
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ <h5>Testing with MCP CLI</h5>
- Windows: Download from https://stedolan.github.io/jq/download/

Then run:
echo '{"jsonrpc":"2.0","method":"tools/list","id":1}' | python echo_server.py | jq
echo '{"jsonrpc":"2.0","method":"notifications/initialized"}\n{"jsonrpc":"2.0","method":"tools/list","id":1}' | python echo_server.py | jq
</callout>

<checkable-item title="Tools list command returns formatted JSON with echo_tool"></checkable-item>
Expand All @@ -51,21 +51,50 @@ <h5>Creating Test Scripts</h5>
echo "Testing Echo MCP Server"
echo "======================"

run_mcp_test() {
local test_name="$1"
local method="$2"
local params="$3"
local jq_filter="$4"

echo -e "\n${test_name}:"

# Create a temporary file for the session
local tmpfile=$(mktemp)

# Write initialization sequence and command to temp file
echo '{"jsonrpc":"2.0","method":"notifications/initialized"}' > "$tmpfile"
if [ -n "$params" ]; then
echo "{\"jsonrpc\":\"2.0\",\"method\":\"$method\",\"id\":1,\"params\":$params}" >> "$tmpfile"
else
echo "{\"jsonrpc\":\"2.0\",\"method\":\"$method\",\"id\":1}" >> "$tmpfile"
fi

# Run the server with the commands and filter the result
if python echo_server.py < "$tmpfile" | grep -v "WARNING" | tail -n 1 | jq "$jq_filter" 2>/dev/null; then
echo PASS
result=0
else
echo FAIL
result=1
fi

# Clean up
rm "$tmpfile"
return $result
}

# Test 1: List tools
echo -e "\n1. Listing available tools:"
echo '{"jsonrpc":"2.0","method":"tools/list","id":1}' | python echo_server.py | jq '.result.tools[].name'
run_mcp_test "1. Listing available tools" "tools/list" "" ".result.tools[].name"

# Test 2: Call echo_tool
echo -e "\n2. Calling echo_tool with message:"
echo '{"jsonrpc":"2.0","method":"tools/call","id":2,"params":{"name":"echo_tool","arguments":{"message":"Hello from CLI test!"}}}' | python echo_server.py | jq '.result.content[0].text'
run_mcp_test "2. Calling echo_tool with message" "tools/call" '{"name":"echo_tool","arguments":{"message":"Hello from CLI test!"}}' ".result.content[0].text"

# Test 3: List resources
echo -e "\n3. Listing available resources:"
echo '{"jsonrpc":"2.0","method":"resources/list","id":3}' | python echo_server.py | jq '.result.resources'
run_mcp_test "3. Listing available resources" "resources/list" "" ".result.resources"

# Test 4: Read a resource
echo -e "\n4. Reading echo resource:"
echo '{"jsonrpc":"2.0","method":"resources/read","id":4,"params":{"uri":"echo://testing-resources"}}' | python echo_server.py | jq '.result.contents[0].text'
run_mcp_test "4. Reading echo resource" "resources/read" '{"uri":"echo://testing-resources"}' ".result.contents[0].text"

echo -e "\nAll tests completed!"
</callout>
Expand All @@ -84,4 +113,4 @@ <h5>Creating Test Scripts</h5>

<alert>
If any test fails, check the error messages and ensure your Echo server is running correctly. You can also use the MCP Inspector to debug issues visually.
</alert>
</alert>