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Support loading configs via prefix (sksamuel#412)
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152 changes: 152 additions & 0 deletions
152
hoplite-core/src/test/kotlin/com/sksamuel/hoplite/PrefixTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| package com.sksamuel.hoplite | ||
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| import io.kotest.core.spec.style.FunSpec | ||
| import io.kotest.extensions.system.withEnvironment | ||
| import io.kotest.matchers.shouldBe | ||
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| class PrefixTest : FunSpec() { | ||
| init { | ||
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| test("reads config from string at a given prefix") { | ||
| data class TestConfig(val a: String, val b: Int) | ||
|
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| val config = ConfigLoaderBuilder.default() | ||
| .addPropertySource( | ||
| PropertySource.string( | ||
| """ | ||
| foo.a = A value | ||
| foo.b = 42 | ||
| bar.a = A value bar | ||
| bar.b = 45 | ||
| """.trimIndent(), "props" | ||
| ) | ||
| ) | ||
| .build() | ||
| .loadConfigOrThrow<TestConfig>(prefix = "foo") | ||
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| config shouldBe TestConfig("A value", 42) | ||
| } | ||
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| test("reads config from input stream at a given prefix") { | ||
| data class TestConfig(val a: String, val b: Int) | ||
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| val stream = """ | ||
| foo.a = A value | ||
| foo.b = 42 | ||
| bar.a = A value bar | ||
| bar.b = 45 | ||
| """.trimIndent().byteInputStream(Charsets.UTF_8) | ||
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| val config = ConfigLoaderBuilder.default() | ||
| .addPropertySource(PropertySource.stream(stream, "props")) | ||
| .build() | ||
| .loadConfigOrThrow<TestConfig>(prefix = "foo") | ||
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| config shouldBe TestConfig("A value", 42) | ||
| } | ||
|
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| test("reads config from map at a given prefix") { | ||
| data class TestConfig(val a: String, val b: Int, val other: List<String>) | ||
|
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| val arguments = mapOf( | ||
| "foo.a" to "A value", | ||
| "foo.b" to "42", | ||
| "bar.a" to "A value bar", | ||
| "bar.b" to "45", | ||
| "foo.other" to listOf("Value1", "Value2"), | ||
| "bar.other" to listOf("Value1bar", "Value2bar") | ||
| ) | ||
|
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| val config = ConfigLoaderBuilder.default() | ||
| .addPropertySource(PropertySource.map(arguments)) | ||
| .build() | ||
| .loadConfigOrThrow<TestConfig>(prefix = "foo") | ||
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| config shouldBe TestConfig("A value", 42, listOf("Value1", "Value2")) | ||
| } | ||
|
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| test("reads config from command line at a given prefix") { | ||
| data class TestConfig(val a: String, val b: Int, val other: List<String>) | ||
|
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| val arguments = arrayOf( | ||
| "--foo.a=A value", | ||
| "--foo.b=42", | ||
| "--bar.a=A value bar", | ||
| "--bar.b=45", | ||
| "some other value", | ||
| "--foo.other=Value1", | ||
| "--foo.other=Value2", | ||
| "--bar.other=Value1bar", | ||
| "--bar.other=Value2bar", | ||
| "--other=Value1o", | ||
| "--other=Value2o" | ||
| ) | ||
|
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| val config = ConfigLoaderBuilder.default() | ||
| .addPropertySource(PropertySource.commandLine(arguments)) | ||
| .build() | ||
| .loadConfigOrThrow<TestConfig>(prefix = "foo") | ||
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| config shouldBe TestConfig("A value", 42, listOf("Value1", "Value2")) | ||
| } | ||
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| test("reads from added source before default sources at a given prefix") { | ||
| data class TestConfig(val a: String, val b: Int, val other: List<String>) | ||
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| withEnvironment(mapOf("foo.b" to "91", "foo.other" to "Random13")) { | ||
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| val arguments = arrayOf( | ||
| "--foo.a=A value", | ||
| "--foo.b=42", | ||
| "--bar.a=A value bar", | ||
| "--bar.b=45", | ||
| "some other value", | ||
| "--foo.other=Value1", | ||
| "--foo.other=Value2", | ||
| "--bar.other=Value1bar", | ||
| "--bar.other=Value2bar", | ||
| "--other=Value1o", | ||
| "--other=Value2o" | ||
| ) | ||
|
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| val config = ConfigLoaderBuilder.default() | ||
| .addPropertySource(PropertySource.commandLine(arguments)) | ||
| .addDefaultPropertySources() | ||
| .addEnvironmentSource() | ||
| .build() | ||
| .loadConfigOrThrow<TestConfig>(prefix = "foo") | ||
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| config shouldBe TestConfig("A value", 42, listOf("Value1", "Value2")) | ||
| } | ||
| } | ||
|
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| test("reads from default source before specified at a given prefix") { | ||
| data class TestConfig(val a: String, val b: Int, val other: List<String>) | ||
|
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| withEnvironment(mapOf("foo.b" to "91", "foo.other" to "Random13")) { | ||
| val arguments = arrayOf( | ||
| "--foo.a=A value", | ||
| "--foo.b=42", | ||
| "--bar.a=A value bar", | ||
| "--bar.b=45", | ||
| "some other value", | ||
| "--foo.other=Value1", | ||
| "--foo.other=Value2", | ||
| "--bar.other=Value1bar", | ||
| "--bar.other=Value2bar", | ||
| "--other=Value1o", | ||
| "--other=Value2o" | ||
| ) | ||
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| val config = ConfigLoaderBuilder.default() | ||
| .addEnvironmentSource() | ||
| .addDefaultPropertySources() | ||
| .addPropertySource(PropertySource.commandLine(arguments)) | ||
| .build() | ||
| .loadConfigOrThrow<TestConfig>(prefix = "foo") | ||
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| config shouldBe TestConfig("A value", 91, listOf("Random13")) | ||
| } | ||
| } | ||
| } | ||
| } |
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