Improve orx-shader-phrases

orx-shader-phrases/src/test/kotlin/TestPreprocessShader.kt

@@ -1,19 +1,53 @@
+import org.amshove.kluent.`should contain`
+import org.amshove.kluent.`should throw`
+import org.amshove.kluent.`with message`
+import org.amshove.kluent.invoking
 import org.openrndr.extra.shaderphrases.preprocessShader
+import org.openrndr.extra.shaderphrases.preprocessShaderFromUrl
+import org.openrndr.resourceUrl
 import org.spekframework.spek2.Spek
 import org.spekframework.spek2.style.specification.describe
 
-object TestPreprocessShader:Spek({
+object TestPreprocessShader : Spek({
+    describe("An url pointing to a shader resource") {
+        val url = resourceUrl("/from-url-test.frag")
+        describe("results in injected dummy phrase when preprocessed") {
+            val processed = preprocessShaderFromUrl(url)
+            processed `should contain` "float dummy"
+        }
+    }
 
     describe("A shader with import statements") {
-        val shader = """
-#version 330
-import org.openrndr.extra.shaderphrases.phrases.Dummy.*
-
-
-""".trimIndent()
-        describe("when preprocessed") {
+        val shader = """#version 330
+#pragma import org.openrndr.extra.shaderphrases.phrases.Dummy.*
+"""
+        describe("injects dummy phrase when preprocessed") {
             val processed = preprocessShader(shader)
-            println(processed)
+            processed `should contain` "float dummy"
+        }
+    }
+
+    describe("A shader with non-resolvable class statements") {
+        val shader = """#version 330
+#pragma import invalid.Class.*
+"""
+        describe("throws exception when preprocessed") {
+            invoking {
+                preprocessShader(shader)
+            } `should throw` RuntimeException::class `with message`
+                    ("class \"invalid.Class\" not found in \"#pragma import invalid.Class\" on line 2")
+        }
+    }
+
+    describe("A shader with non-resolvable property statements") {
+        val shader = """#version 330
+#pragma import org.openrndr.extra.shaderphrases.phrases.Dummy.invalid
+"""
+        describe("throws exception when preprocessed") {
+            invoking {
+                preprocessShader(shader)
+            } `should throw` RuntimeException::class `with message`
+                    ("field \"invalid\" not found in \"#pragma import org.openrndr.extra.shaderphrases.phrases.Dummy.invalid\" on line 2")
         }
     }
 })