#1159: better error message if issues in em.yaml

Author: arcuri82

core/src/main/kotlin/org/evomaster/core/EMConfig.kt

@@ -355,9 +355,16 @@ class EMConfig {
             LoggingUtil.uniqueUserInfo("Loading configuration file from: ${Path(configPath).toAbsolutePath()}")
         }
 
-        val cf = ConfigUtil.readFromFile(configPath)
-        cf.validateAndNormalizeAuth()
-        return cf
+        try {
+            val cf = ConfigUtil.readFromFile(configPath)
+            cf.validateAndNormalizeAuth()
+            return cf
+        }catch (e: Exception){
+            val cause = if(e.cause!=null) "\nCause:${e.cause!!.message}" else ""
+            throw ConfigProblemException("Failed when reading configuration file at $configPath." +
+                    "\nError: ${e.message}" +
+                    "$cause")
+        }
     }
 
     private fun applyConfigFromFile(cff: ConfigsFromFile) {

core/src/test/kotlin/org/evomaster/core/config/ConfigUtilTest.kt

@@ -80,4 +80,14 @@ class ConfigUtilTest{
         assertTrue(config.auth.any { it.loginEndpointAuth.payloadUserPwd == null && it.loginEndpointAuth.payloadRaw != null})
         assertTrue(config.auth.any { it.loginEndpointAuth.payloadUserPwd != null && it.loginEndpointAuth.payloadRaw == null})
     }
+
+
+    @Test
+    fun testIssue1159(){
+
+        val path = "${basePath}/issue1159.yaml"
+        org.junit.jupiter.api.assertThrows<IllegalArgumentException> {
+            val config = ConfigUtil.readFromFile(path)
+        }
+    }
 }

core/src/test/resources/config/issue1159.yaml

@@ -0,0 +1,47 @@
+#https://github.com/WebFuzzing/EvoMaster/issues/1159
+
+configs:  # remove this {} when specifying properties
+  bbSwaggerUrl: "http://obedocumentation.fwh.is/?i=1"
+  bbTargetUrl: "http://obedocumentation.fwh.is/?i=1"
+  blackBox: true
+  configPath: "em.yaml"
+  endpointFocus: null
+  endpointPrefix: null
+  endpointTagFilter: null
+  #   header0: ""
+  #   header1: ""
+  #   header2: ""
+  maxTime: "60s"
+  outputFilePrefix: "EvoMaster"
+  outputFileSuffix: "Test"
+  outputFolder: "generated_tests"
+  outputFormat: "DEFAULT"
+  prematureStop: ""
+  ratePerMinute: 0
+  sutControllerHost: "localhost"
+  sutControllerPort: 40100
+  testTimeout: 60
+
+
+auth:
+  - name: i gede
+    loginEndpointAuth:
+      payloadRaw: "{\"email\": \"[email protected]\", \"password\": \"sainsdata\"}"
+  - name: susrama
+    loginEndpointAuth:
+      payloadUserPwd:
+        email: [email protected]
+        password: "sainsdata"
+        usernameField: email
+        passwordField: password
+        token:
+          headerPrefix: "Bearer "
+          extractFromField: "/token/authToken"
+          httpHeaderName: "Authorization"
+
+authTemplate:
+  loginEndpointAuth:
+    endpoint: /login
+    verb: POST
+    contentType: application/json
+    expectCookies: true