Add Gradle test

Author: martinbonnin

libraries/apollo-gradle-plugin/src/test/kotlin/test/IssueSeveritiesTests.kt

@@ -0,0 +1,70 @@
+package test
+
+import org.gradle.testkit.runner.UnexpectedBuildFailure
+import org.junit.Test
+import util.TestUtils
+import util.TestUtils.withTestProject
+import kotlin.test.assertTrue
+
+class IssueSeveritiesTests {
+
+  private fun String.containsWarning(): Boolean {
+    return lines().any {
+      it.matches(Regex(".*w:.* Fragment 'queryDetails' is not used.*"))
+    }
+  }
+
+  private fun String.containsError(): Boolean {
+    return lines().any {
+      it.matches(Regex(".*e:.* Fragment 'queryDetails' is not used.*"))
+    }
+  }
+
+  @Test
+  fun default() {
+    withTestProject("issue-severities") { dir ->
+      val result = TestUtils.executeTask("generateDefaultApolloSources", dir)
+      assertTrue(result.output.containsWarning())
+    }
+  }
+
+  @Test
+  fun ignore() {
+    withTestProject("issue-severities") { dir ->
+      val result = TestUtils.executeTask("generateIgnoreApolloSources", dir)
+      assertTrue(!result.output.containsWarning() && !result.output.containsError())
+    }
+  }
+
+  @Test
+  fun warn() {
+    withTestProject("issue-severities") { dir ->
+      val result = TestUtils.executeTask("generateWarnApolloSources", dir)
+      assertTrue(result.output.containsWarning())
+    }
+  }
+
+  @Test
+  fun error() {
+    withTestProject("issue-severities") { dir ->
+      try {
+        TestUtils.executeTask("generateErrorApolloSources", dir)
+        error("An Exception was expected")
+      } catch (e: UnexpectedBuildFailure) {
+        assertTrue(e.message!!.containsError())
+      }
+    }
+  }
+
+  @Test
+  fun invalid() {
+    withTestProject("issue-severities") { dir ->
+      try {
+        TestUtils.executeTask("generateInvalidApolloSources", dir)
+        error("An Exception was expected")
+      } catch (e: UnexpectedBuildFailure) {
+        assertTrue(e.message!!.contains("Unknown severity 'invalid'. Expected one of: 'ignore', 'warn', 'error'"))
+      }
+    }
+  }
+}

libraries/apollo-gradle-plugin/testProjects/issue-severities/build.gradle.kts

@@ -0,0 +1,36 @@
+plugins {
+  alias(libs.plugins.kotlin.jvm)
+  alias(libs.plugins.apollo)
+  alias(libs.plugins.compat.patrouille)
+}
+
+dependencies {
+  implementation(apollo.deps.api)
+}
+
+apollo {
+  service("default") {
+    packageName.set("default")
+  }
+  service("ignore") {
+    packageName.set("ignore")
+    issueSeverity("UnusedFragment", "ignore")
+  }
+  service("warn") {
+    packageName.set("warn")
+    issueSeverity("UnusedFragment", "warn")
+  }
+  service("error") {
+    packageName.set("error")
+    issueSeverity("UnusedFragment", "error")
+  }
+  service("invalid") {
+    packageName.set("invalid")
+    issueSeverity("UnusedFragment", "invalid")
+  }
+}
+
+compatPatrouille {
+  java(17)
+}
+

libraries/apollo-gradle-plugin/testProjects/issue-severities/settings.gradle.kts

@@ -0,0 +1,3 @@
+rootProject.name = "testProject"
+
+apply(from = "../../../../gradle/test.settings.gradle.kts")

libraries/apollo-gradle-plugin/testProjects/issue-severities/src/main/graphql/operation.graphql

@@ -0,0 +1,7 @@
+query GetTypename {
+    __typename
+}
+
+fragment queryDetails on Query {
+    __typename
+}

libraries/apollo-gradle-plugin/testProjects/issue-severities/src/main/graphql/schema.graphqls

@@ -0,0 +1,3 @@
+type Query {
+  foo: String
+}