def "formats language level in IDEA fancy format"() {
        expect:
        new IdeaLanguageLevel(JavaVersion.VERSION_1_3).level == "JDK_1_3"
        new IdeaLanguageLevel(JavaVersion.VERSION_1_4).level == "JDK_1_4"
        new IdeaLanguageLevel(JavaVersion.VERSION_1_5).level == "JDK_1_5"
        new IdeaLanguageLevel(JavaVersion.VERSION_1_6).level == "JDK_1_6"
        new IdeaLanguageLevel(JavaVersion.VERSION_1_7).level == "JDK_1_7"
    }

    private final String level;

    public DefaultIdeaLanguageLevel(String level) {
        this.level = level;
    }

    public boolean isJDK_1_4() {
        return "JDK_1_4".equals(level);
    }

    public boolean isJDK_1_5() {
        return "JDK_1_5".equals(level);
    }

    public boolean isJDK_1_6() {
        return "JDK_1_6".equals(level);
    }

    java.targetCompatibility = 1.8
}
"""
        when:
        succeeds "idea"

        then:
        ipr.languageLevel == "JDK_1_7"
        ipr.jdkName == "1.8"
        iml('root').languageLevel == "JDK_1_4"
        iml('child1').languageLevel == "JDK_1_6"
        iml('child2').languageLevel == "JDK_1_5"
        iml('child3').languageLevel == null
        ipr.bytecodeTargetLevel.@target == '1.8'